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1

Albert Einstein Distinguished Educator Fellowship (AEF) Program Homepage |  

Office of Science (SC) Website

Einstein Fellowship Home Einstein Fellowship Home Albert Einstein Distinguished Educator Fellowship (AEF) Program Einstein Fellowship Home Eligibility Benefits Obligations How to Apply Key Dates Frequently Asked Questions Contact WDTS Home Webinar "Albert Einstein Distinguished Educator Fellowship Program Overview" .pdf file (114KB) View recorded webinar. External link Read More .pdf file (114KB) AEF Logo Applications are now closed for theThe Albert Einstein Distinguished Educator Program 2013-2014 1 of 2 Print Text Size: A A A RSS Feeds FeedbackShare Page Einstein Fellowship Program Overview Announcements Webinar "Albert Einstein Distinguished Educator Fellowship Program Overview" .pdf file (114KB) The Albert Einstein Distinguished Educator Fellowship (AEF) Program provides a unique professional development opportunity for accomplished

2

Interviews in Washington, DC for Albert Einstein Fellowship Semi-Finalists  

Energy.gov (U.S. Department of Energy (DOE))

Selected semi-finalists in the Albert Einstein Distinguished Educator Fellowship are invited to DC for interviews.

3

First strike Sixty years ago, Albert Einstein  

E-Print Network (OSTI)

-weapon state in association or alliance with a nuclear-weapon state." The loopholes in this policy are largeFirst strike Sixty years ago, Albert Einstein said that the existence of nuclear weapons would physicists, including Einstein, have argued that the first use of nuclear weapons can never again

Rhoads, James

4

Zurek awarded Albert Einstein professorship prize  

NLE Websites -- All DOE Office Websites (Extended Search)

Einstein professorship prize Einstein professorship prize Zurek awarded Albert Einstein professorship prize Prize honors Ulm's connection with Albert Einstein, who was born in the city in 1879. July 30, 2010 Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and new materials. Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and new materials. Contact James E. Rickman Communications Office (505) 665-9203

5

Indirect Cost THE ALBERT EINSTEIN COLLEGE OF MEDICINE OF  

E-Print Network (OSTI)

Indirect Cost THE ALBERT EINSTEIN COLLEGE OF MEDICINE OF YESHIVA UNIVERSITY ADMINISTRATIVE POLICY Policy No. 4.2 Facilities & Administrative Cost Rates for Grants and Contracts Issued By: Date Issued policy for the determination of Facilities & Administrative (indirect) cost (overhead) rates for all

Brown, Lucy L.

6

E-Print Network 3.0 - albert einstein otto Sample Search Results  

NLE Websites -- All DOE Office Websites (Extended Search)

View of God Nancy Ellen Abrams and Joel R. Primack Did Albert Einstein believe in God... way, they are part of a search that Einstein began - the search for language to...

7

E-Print Network 3.0 - albert einstein centenary Sample Search...  

NLE Websites -- All DOE Office Websites (Extended Search)

View of God Nancy Ellen Abrams and Joel R. Primack Did Albert Einstein believe in God... way, they are part of a search that Einstein began - the search for language to...

8

E-Print Network 3.0 - albert einstein--chief engineer Sample...  

NLE Websites -- All DOE Office Websites (Extended Search)

einstein--chief engineer Search Powered by Explorit Topic List Advanced Search Sample search results for: albert einstein--chief engineer Page: << < 1 2 3 4 5 > >> 1 Networking The...

9

E-Print Network 3.0 - albert einstein cancer Sample Search Results  

NLE Websites -- All DOE Office Websites (Extended Search)

cancer Search Powered by Explorit Topic List Advanced Search Sample search results for: albert einstein cancer Page: << < 1 2 3 4 5 > >> 1 TRANSFORMING THE FUTURE OF HUMAN HEALTH...

10

Albert Einstein Distinguished Educator Fellowship Act of 1994...  

Office of Environmental Management (EM)

Educator Fellowship Act of 1994 in U.S.C. CITE: 42USC7382 TITLE 42--THE PUBLIC HEALTH AND WELFARE CITE: 42USC7382a TITLE 42--THE PUBLIC HEALTH AND WELFARE CITE: 42USC7382b...

11

Albert Einstein College of Medicine Application for Non-human Use of Radioactive Material  

E-Print Network (OSTI)

RSO-1 Rev.0 Albert Einstein College of Medicine Application for Non-human Use of Radioactive pipettes: Fume hood: Absorbent liner & Tray Shielding: Lead: Lucite: GM survey meter: Handling tongs radioactive material is secure against unauthorized access: 9. Please check the type of application below

Emmons, Scott

12

Albert Einstein College of Medicine Amendment to Non-human Use of Radioactive Material License  

E-Print Network (OSTI)

RSO-2 Rev.0 Albert Einstein College of Medicine Amendment to Non-human Use of Radioactive Material License INSTRUCTIONS: If you wish to make changes to your license to use radioactive material please exposure; Glove box: Mechanical pipettes: Fume hood: Absorbent liner & Tray Shielding: Lead: Lucite: GM

Emmons, Scott

13

Albert Einstein Alerts President Roosevelt of German Atomic Energy...  

National Nuclear Security Administration (NNSA)

possibility that research might lead to developing powerful bombs. Einstein notes that Germany has stopped the sale of uranium and German physicists are engaged in uranium...

14

Emil Rupp, Albert Einstein and the canal ray experiments on wave-particle duality: Scientific fraud and theoretical bias  

E-Print Network (OSTI)

In 1926 Emil Rupp published a number of papers on the interference properties of light emitted by canal ray sources. These articles, particularly one paper that came into being in collaboration with Albert Einstein, drew quite some attention as they probed the wave versus particle nature of light. They also significantly propelled Rupp's career, even though that from the outset they were highly controversial. This article will review this episode, and in particular Rupp's collaboration with Einstein. Evidence that Rupp forged his results is presented and their critical reception in the socially and politically divided German physics community is discussed. These divisions fail to explain the full dynamic; the latter is attempted by turning to the role that theoretical bias on occasion has in assessing experiment. Einstein's responses in particular are analyzed in this context.

van Dongen, Jeroen

2007-01-01T23:59:59.000Z

15

Zurek awarded Albert Einstein  

NLE Websites -- All DOE Office Websites (Extended Search)

City of Ulm.Zurek began his affiliation with LANL in 1984 as a J. Robert - 2 - Oppenheimer Fellow. He was leader of the Lab's Theoretical Astrophysics Group from 1991 to...

16

Transforming Education at Einstein  

E-Print Network (OSTI)

Transforming Education at Einstein EinstEin Winter/spring 2012 The Magazine for Alumni and Friends trANsfOrMiNg eDuCAtiON At eiNsteiN Education at Albert Einstein College of Medicine is undergoing

Yates, Andrew

17

Calling Excellent Math and Science Teachers -- Einstein Fellowship Deadline  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Calling Excellent Math and Science Teachers -- Einstein Fellowship Calling Excellent Math and Science Teachers -- Einstein Fellowship Deadline is January 4 Calling Excellent Math and Science Teachers -- Einstein Fellowship Deadline is January 4 December 3, 2010 - 4:19pm Addthis Ginny Simmons Ginny Simmons Former Managing Editor for Energy.gov, Office of Public Affairs Each year, the Department of Energy selects excellent elementary and secondary math and science teachers as Albert Einstein Distinguished Educators Fellows who come to DC for 11 months to share their teaching expertise with policy makers. Teachers are selected based on exemplary experience in K-12 science, technology, engineering or mathematics teaching, demonstrated leadership in the community, an understanding of national, state, and local education policy, and communication and interpersonal skills.

18

Celebrating Einstein A Series of Articles  

NLE Websites -- All DOE Office Websites (Extended Search)

A Series of Articles A Series of Articles "Albert Einstein is undoubtedly one of the most fascinating and influential figures of the modern era. As a preeminent physicist, he radically transformed our understanding of the universe." - Edited excerpt from Albert Einstein, Albert Einstein Archives, The Hebrew University of Jerusalem In this series about Albert Einstein’s body of work, his discoveries are related to today’s research, technology, and common knowledge. Series themes include "How did Einstein know that?" and "How did Einstein figure that out?" and they focus either on conveying a major concept or on the reasoning that led to it. These articles will also cover Einstein’s major 1905 writings and address his general theory of relativity. In consideration of 2005 being designated as the World Year of Physics, the release of these articles is especially appropriate.

19

2013 Spring : Distinguished Honors Distinguished  

E-Print Network (OSTI)

Distinguished Balltrip Margaret Keith Distinguished Bannister Shayna Rachel Distinguished Barber Laura Ann Cary Distinguished Bass Christopher Tre Distinguished Beal Callie Elizabeth Distinguished Beanland Alexandra Sara Berdusco Ann Marie Distinguished Berdux John Christopher Distinguished Bickett Kendall Currin Distinguished

Kasman, Alex

20

2011 Spring : Distinguished Honors Distinguished  

E-Print Network (OSTI)

Kimberly Marie Distinguished Beneroff Rachel Brina Distinguished Benjamin Abigail Distinguished Benson Distinguished Camara Jeffery Jared Distinguished Campanaro Margaret Holland Distinguished Cardamone Sarah

Kasman, Alex

Note: This page contains sample records for the topic "albert einstein distinguished" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Manhattan Project: Einstein's Letter to Roosevelt  

Office of Scientific and Technical Information (OSTI)

EINSTEIN'S LETTER TO ROOSEVELT Albert Einstein (with Leo Szilard) to President Franklin Roosevelt, August 2, 1939 Resources > Library Below are photographs of both pages of the letter written by Albert Einstein, with the help of Leo Szilard, to President Franklin Roosevelt on August 2, 1939, warning Roosevelt of the dangers posed by nuclear energy. Click here for more background on the writing of this letter. The photographs of the pages themselves are courtesy the Franklin D. Roosevelt Presidential Library and Museum. First page of Einstein's letter to Roosevelt, August 2, 1939. Second page of Einstein's letter to Roosevelt, August 2, 1939. Click on a link below to return to Einstein's Letter, 1939 Albert Einstein Library Sources and notes for this page.

22

Zurek awarded Albert Einstein professorship prize  

NLE Websites -- All DOE Office Websites (Extended Search)

Science City of Ulm. Zurek began his affiliation with LANL in 1984 as a J. Robert Oppenheimer Fellow. He was leader of the Lab's Theoretical Astrophysics Group from 1991 to...

23

Absurdo, revolta, ao : Albert Camus.  

E-Print Network (OSTI)

??Em nossa dissertao, procuramos pensar a ao a partir do itinerrio filosfico de Albert Camus. A princpio, investigaremos as possibilidades da ao a partir da (more)

Patricia de Oliveira Machado

2010-01-01T23:59:59.000Z

24

Albert Carnesale | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Albert Carnesale Albert Carnesale About Us Albert Carnesale - Chancellor Emeritus and Professor, University of California, Los Angeles Albert Carnesale Albert Carnesale is Chancellor Emeritus and Professor at the University of California, Los Angeles (UCLA). He was Chancellor of the University from July 1, 1997 through June 30, 2006, and now serves as Professor of Public Policy and of Mechanical and Aerospace Engineering. His research and teaching focus on public policy issues having substantial scientific and technological dimensions, and he is the author or co-author of six books and more than 100 articles on a wide range of subjects, including national security strategy, arms control, nuclear proliferation, the effects of technological change on foreign and defense policy, domestic and

25

Albert Camus et le christianisme.  

E-Print Network (OSTI)

??Pour Albert Camus le problme dominant du XXe sicle est de savoir, "si l'homme sans le secours de l'ternel ou de la pense rationaliste peut (more)

Reekie, Julia Lamont

2012-01-01T23:59:59.000Z

26

Albert Bond | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Bond - Project Officer, Golden Field Office Albert Bond is a Project Officer at the Golden Field Office. Most Recent New Choctaw Nation Recycling Center Posts Quick Results March 8...

27

Manhattan Project: Einstein's Letter, 1939  

Office of Scientific and Technical Information (OSTI)

Einstein's letter to Roosevelt, August 2, 1939 EINSTEIN'S LETTER Einstein's letter to Roosevelt, August 2, 1939 EINSTEIN'S LETTER (1939) Events > Early Government Support, 1939-1942 Einstein's Letter, 1939 Early Uranium Research, 1939-1941 Piles and Plutonium, 1939-1941 Reorganization and Acceleration, 1940-1941 The MAUD Report, 1941 A Tentative Decision to Build the Bomb, 1941-1942 On October 11, 1939, Alexander Sachs, Wall Street economist and longtime friend and unofficial advisor to President Franklin Delano Roosevelt, met with the President to discuss a letter written by Albert Einstein the previous August (right). Einstein had written to inform Roosevelt that recent research on fission chain reactions utilizing uranium made it probable that large amounts of power could be produced by a chain reaction and that, by harnessing this power, the construction of "extremely powerful bombs" was conceivable. Einstein believed the German government was actively supporting research in this area and urged the United States government to do likewise. Sachs read from a cover letter he had prepared and briefed Roosevelt on the main points contained in Einstein's letter. Initially the President was noncommittal and expressed concern over locating the necessary funds, but at a second meeting over breakfast the next morning Roosevelt became convinced of the value of exploring atomic energy.

28

2009 Spring : Highly Distinguished Honors Highly Distinguished  

E-Print Network (OSTI)

Armstrong Anna P Highly Distinguished Armstrong Jack Ray Highly Distinguished Armstrong Sarah Rose Highly

Kasman, Alex

29

Engineering Virtualized Services Elvira Albert  

E-Print Network (OSTI)

Engineering Virtualized Services Elvira Albert Complutense University of Madrid, Spain elvira project FP7-610582 ENVISAGE: Engineering Virtualized Services (http://www.envisage-project.eu). level of an application-level service at the expense of potentially changing its cost profile. In traditional engineering

Johnsen, Einar Broch

30

Einstein and the Daytime Sky - A  

NLE Websites -- All DOE Office Websites (Extended Search)

The distinction between a fluid's liquid and gaseous phases breaks down at a certain temperature and pressure; when illuminated under these conditions, the fluid looks milky white, like a common opal. Einstein found how this relates to the reason the sky is blue. A B C D A. A path with a detour If you look at many artists' renderings of Albert Einstein, you are likely to find some that depict Einstein with some representation of the universe as a whole, or black holes, or other objects in deep space. Because many such pictures exist, we may, somewhat unconsciously, associate Einstein with the dark nighttime sky. This is a quite reasonable association, since Einstein's theories of space and time deal with the universe as a whole and with certain astrophysical

31

Albert Camus and the Phenomenon of Solidarity.  

E-Print Network (OSTI)

??In an interview, Albert Camus once said, I am not a philosopher. I dont believe enough in reason to believe in a system. What interests (more)

Purdue, Zachary James

2011-01-01T23:59:59.000Z

32

Interviews in Washington, DC for Albert Einstein Fellowship Semi...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

National Science Foundation (NSF), the National Aeronautics and Space Administration (NASA), the and the National Oceanic and Atmospheric Administration (NOAA). The DOE sponsors...

33

Albert Einstein College of Medicine Center for Experimental Therapeutics  

E-Print Network (OSTI)

new trend has evolved within the pharmaceutical industry, which threatens the develop- ment of new, the playing field has changed dramatically. The pharmaceutical industry is grappling with long- term fiscal Probe to Lead Preclinical Pharmaceutical/Biotech Industry Clinical Trials Pharmaceutical

Kenny, Paraic

34

Royal Society of Arts: Albert Medallist  

Science Journals Connector (OSTI)

... humanity as the fearless and resolute champion of the ideal of national freedom and individual liberty. The Albert Medal was struck in 1864 to commemorate Prince Albert's presidency of ... . He derives his powers from the people, who have voluntarily surrendered to him their liberties in the knowledge that the present crisis in world affairs requires swiftness and unity of ...

1941-05-31T23:59:59.000Z

35

The Wigner Distinguished Lecture Series | ornl.gov  

NLE Websites -- All DOE Office Websites (Extended Search)

Events and Conferences Events and Conferences Submit an event or conference notice Wigner Lectures Wigner Lecturers Frances Arnold Craig Barrett Steven Chu Albert Fert Siegfried Hecker Arun Majumdar Venkatraman Ramakrishnan C.N.R. Rao Ada Yonath Events and Conferences Home | ORNL | Events and Conferences | Wigner Lectures SHARE The Wigner Distinguished Lecture Series Eugene P. Wigner Eugene P. Wigner ORNL's Eugene P. Wigner Distinguished Lecture Series in Science, Technology, and Policy promotes dialogue among Oak Ridge researchers and renowned leaders in science, industry, and government. The invited lecturers bring distinct perspectives to the lab's community of scientists and engineers, whose scientific discoveries and technological breakthroughs target some of the world's most pressing problems.

36

Centenarian Einstein  

ScienceCinema (OSTI)

Commmoration de A.Einstein avec 4 orateurs pour honnorer sa mmoire: le prof.Weisskopf parlera de l'homme de science engag, Daniel Amati du climat de la physique aux annes 1920, Sergio Fubini de l'heure scientifique d'A.Einstein et le prof.Berob(?)

None

2011-04-25T23:59:59.000Z

37

Albert Macrander named American Physical Society Fellow  

NLE Websites -- All DOE Office Websites (Extended Search)

Michael Borland named American Physical Society Fellow Michael Borland named American Physical Society Fellow Grad student is officially a GEMS NIU physicist Susan Mini lands NSF grant for APS beamline upgrades Argonne's Campuzano Honored by Hispanic Engineering Bugs in the News APS News Archives: 2012 | 2011 | 2010 | 2009 2008 | 2007 | 2006 | 2005 2004 | 2003 | 2002 | 2001 2000 Subscribe to APS News rss feed Albert Macrander named American Physical Society Fellow DECEMBER 10, 2007 Bookmark and Share Albert Macrander Albert Macrander of the Argonne X-ray Science Division (XSD) has been elected a Fellow of the American Physical Society. The Fellowship citation is for "advancement of x-ray science, x-ray optics, and x-ray measurements on crystals and for his leadership as Editor of the Review of Scientific Instruments."

38

Jaqueline Kiplinger to receive F. Albert Cotton Award LOS ALAMOS...  

NLE Websites -- All DOE Office Websites (Extended Search)

Chemical Society award August 11, 2014 Jaqueline Kiplinger to receive F. Albert Cotton Award LOS ALAMOS, N.M., Aug. 11, 2014-Los Alamos National Laboratory scientist...

39

Peste e Estrangeiridade em Estado de Sitio de Albert Camus.  

E-Print Network (OSTI)

??Trata-se, nesta dissertao, de um estudo da pea Estado de Stio (1949) de Albert Camus, tendo como eixos os conceitos de peste e de estrangeiridade. (more)

Sandra de Padua Castro

2007-01-01T23:59:59.000Z

40

O sentido do exlio em \\ La Peste\\ de Albert Camus.  

E-Print Network (OSTI)

??O exlio um tema recorrente, embora pouco explorado, em Albert Camus. Sua obra organizada em dois ciclos de criao: o absurdo e a (more)

Cristianne Aparecida de Brito Lameirinha

2007-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "albert einstein distinguished" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Le Figure Femminili nei testi narrativi di Albert Camus.  

E-Print Network (OSTI)

??Il presente studio si propone di analizzare i personaggi femminili nei testi narrativi di Albert Camus, nella maggior parte dei quali le donne, nei ruoli (more)

Erdas, Pier Giorgio

2006-01-01T23:59:59.000Z

42

The strains of cynical consciousness in Albert Camus.  

E-Print Network (OSTI)

??The aim of this thesis is to determine that which constitutes cynical consciousness within the works of Albert Camus, as well as to consider the (more)

Mercado, Robert

2005-01-01T23:59:59.000Z

43

BSA Distinguished Lectures  

NLE Websites -- All DOE Office Websites (Extended Search)

BSA Distinguished Lectures BSA Distinguished Lectures BSA Distinguished Lectures are sponsored by Brookhaven Science Associates, the company that manages Brookhaven Lab, to bring topics of general interest before the Laboratory community and the public. Lecture series organizer: Peter Wanderer BSA Distinguished Lecture "Paradigms for a 21st Century University: Building a Research University 'From the Sand Up'" Presented by David Keyes, King Abdullah University of Science and Technology (KAUST) Wednesday, October 23, 2013, 4 pm Berkner Hall Auditorium Hosted by: Peter Wanderer Set on the Saudi Arabian shores of the Red Sea, KAUST is an international, graduate research institution with research thrusts in energy, environment, food, and water and supporting initiatives to advance data-driven modeling,

44

Beyond Einstein  

SciTech Connect

The National Academy of Sciences was commissioned in 2006 to report on how to restart the Beyond Einstein program, which includes missions to understand dark energy, test general relativity, and observe gravity waves from merging supermassive black holes. This colloquium by one of the members of the recently released Academy study will explain the research strategy that the report proposes and its implications for continued U.S. participation in the exploration of the universe.

Primack, Joel (University of California, Santa Cruz) [University of California, Santa Cruz

2007-10-08T23:59:59.000Z

45

Nobel Laureate launches Wigner Distinguished Lecture Series | ornl.gov  

NLE Websites -- All DOE Office Websites (Extended Search)

Ron Walli Ron Walli 865.576.0226 Nobel Laureate launches Wigner Distinguished Lecture Series (hi-res image) Listen to the audio OAK RIDGE, Tenn., Oct. 28, 2013 - Four Nobel Laureates are among nine lecturers who will be participating in the new Eugene P. Wigner Distinguished Lecture Series in Science, Technology, and Policy at Oak Ridge National Laboratory. Albert Fert, recipient of the 2007 Nobel Prize in Physics, opens the series on Nov. 4 at 10 a.m. in the Iran Thomas Auditorium at ORNL's Spallation Neutron Source. "The Wigner lectures aim to invigorate scientific discovery and technological innovation and to initiate productive scientific policy debate," said Thom Mason, laboratory director. The lecture series is being hosted by ORNL's Corporate Fellows.

46

Distinguished Lecturers Series  

NLE Websites -- All DOE Office Websites (Extended Search)

Videos Videos Lawrence Berkeley National Laboratory Environmental Energy Technologies Division Distinguished Lecture Series Environmental Energy Technologies Division Distinguished Lecture Series Videos Long Fuse, Big Bang: Thomas Edison, Electricity, and the Locus of Innovation Andrew Hargadon, October 22, 2012 Climate Change Hits Home: Impacts on the Built Environment and Health John Spengler, June 18, 2012 High Comfort-Low Impact, From Buildings to Cities Matthias Schuler, April 30, 2012 Emissions Trading and Climate Finance: Is 2012 the Dead End or the Crossroads? Marc Stuart, January 27, 2012 Advances in Global Climate Modeling for Scientific Understanding and Predictability V. Ramaswamy, October 7, 2011 How is Building Energy Use Related to Occupant Behaviors and Building Usage

47

Distinguished Lecturers Series  

NLE Websites -- All DOE Office Websites (Extended Search)

Past Seminars Past Seminars Lawrence Berkeley National Laboratory Environmental Energy Technologies Division Distinguished Lecture Series Environmental Energy Technologies Division Distinguished Lecture Series Andrew Hargadon October 22, 2012 Long Fuse, Big Bang: Thomas Edison, Electricity, and the Locus of Innovation Andrew Hargadon Charles J. Soderquist Chair in Entrepreneurship Professor of Technology Management at the Graduate School of Management University of California, Davis John Spengler June 18, 2012 Climate Change Hits Home: Impacts on the Built Environment and Health John Spengler Akira Yamaguchi Professor of Environmental Health & Human Habitation Harvard School of Public Health and Director of the Sustainability and Environmental Management Program Harvard Extension School

48

STEM Mentoring Caf- Engaging Young Women in an Authentic Mentoring...  

Energy Savers (EERE)

Mentoring Experience Melinda Higgins Albert Einstein Distinguished Educator Fellow, NASA Office of Education, Headquarters and Goddard Space Flight Center It is a well-known...

49

Melinda M. Higgins | Department of Energy  

Office of Environmental Management (EM)

M. Higgins About Us Melinda M. Higgins - Albert Einstein Distinguished Educator Fellow, NASA Office of Education, Headquarters and Goddard Space Flight Center Most Recent by...

50

Joshua Sneideman | Department of Energy  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Sneideman About Us Joshua Sneideman - Albert Einstein Distinguished Educator Fellow Most Recent Inspiration from Environmental Educators and Youth at the White House August 14...

51

48th Annual Distinguished  

E-Print Network (OSTI)

Electrical Engineering Technology » 1993 Wade Smith Mechanical Engineering » 1989 Presentation respected international energy consultancy. Baker & O'Brien, Inc. currently has offices in Dallas, Houston48th Annual Distinguished Engineer Awards Luncheon Friday, April 11, 2014 11:15 a.m. Sunset

Gelfond, Michael

52

Bruce Alberts, a prominent biochemist who is the Editor-  

E-Print Network (OSTI)

the Bulletin Bruce Alberts, a prominent biochemist who is the Editor- in-Chief of the international Recognition Award Ceremony held in Berkner Hall on Friday, June 18. The awards, consisting of a plaque and $10

Ohta, Shigemi

53

Pafnuty Chebyshev, Steam Engines, and Polynomials by John Albert  

E-Print Network (OSTI)

Pafnuty Chebyshev, Steam Engines, and Polynomials by John Albert OU Mathfest, January 2009 1 professorship at age 61, but continued to work on mathematics right up to his death at age 73. 2. Steam Engines

Albert, John

54

History and perspectives of medical research at the Albert Schweitzer Hospital in Lambarn, Gabon  

Science Journals Connector (OSTI)

In 1913 Albert Schweitzer founded one of the first modern hospitals in Africa dedicated to the health of the local population. The Albert Schweitzer Hospital is located in Lambarn, a small town in Gabon. In 198...

Michael Ramharter; Ayola A. Adegnika; Selidji T. Agnandji

2007-11-01T23:59:59.000Z

55

ALBERT EINSTEIN COLLEGE OF MEDICINE GLOBAL HEALTH SUMMER/SENIOR FELLOWSHIP  

E-Print Network (OSTI)

ADDRESS: NUMBER AND STREET CITY STATE ZIP CODE HOME PHONE: CELL PHONE: WORK PHONE: _____ (initial) I MENTOR CONTACT INFORMATION LAST NAME: FIRST NAME: DEPARTMENT: TITLE: HOME PHONE: CELL PHONE: WORK PHONE ADDRESS: CURRENT ADDRESS: NUMBER AND STREET CITY COUNTRY HOME PHONE: CELL PHONE: WORK PHONE: PREFERRED WAY

Yates, Andrew

56

E-Print Network 3.0 - albert einstein und Sample Search Results  

NLE Websites -- All DOE Office Websites (Extended Search)

, Humanitarian - Youngstown State - March ... Source: Howard, Don - Department of Philosophy, University of Notre Dame Collection: Multidisciplinary Databases and Resources 4...

57

ALBERT EINSTEIN COLLEGE of MEDICINE of YESHIVA UNIVERSITY DEPARTMENT of ENVIRONMENTAL HEALTH and SAFETY  

E-Print Network (OSTI)

EQUIPMENT Yes No N/A Hard hat Gloves Safety Glasses Work Shoes Knee Pads Hearing Protectors Respirator Face and SAFETY HEALTH and SAFETY CONSTRUCTION SAFETY AUDIT FORM Job Location: Field Supervisor: Safety Officer Performing Audit: Scope of Project: Has area been cleared by Safety: Yes No N/A Date: PERSONAL PROTECTIVE

Emmons, Scott

58

Albert Ludwig University of Freiburg Occupational health and safety  

E-Print Network (OSTI)

Effective safety at work can be accomplished only if the employees cooperate. You are obligated to · payAlbert Ludwig University of Freiburg Occupational health and safety Leaflet for employees Numerous laws and regulations have been passed to guarantee occupational health and safety. Industrial safety

Schindelhauer, Christian

59

Einstein for Everyone  

ScienceCinema (OSTI)

Young Einstein was a rebel who seemed doomed to fail. How did he overcome rejection to become the most famous scientist in history? We will discuss and explain all his theories in plain English and without math, and we will discover how Einstein's achievements impact our lives through DVDs, GPS, iPods, computers and green energy.

Piccioni, Robert

2014-06-25T23:59:59.000Z

60

Albert City, Iowa: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

Albert City, Iowa: Energy Resources Albert City, Iowa: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 42.7819199°, -94.9485993° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":42.7819199,"lon":-94.9485993,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

Note: This page contains sample records for the topic "albert einstein distinguished" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

E-Print Network 3.0 - albert julio alvarez Sample Search Results  

NLE Websites -- All DOE Office Websites (Extended Search)

Julio... Rodrguez Jos Miguel Martnez Cerd Ins Khadiri Karim Vega Rosales Rodrigo Antonio Jessurum Arteaga Albert... reclamaciones hasta el prximo viernes 23 de...

62

A Hero of Our Time, Satire in Albert Camus The Fall.  

E-Print Network (OSTI)

?? The aim of the essay is to show that Albert Camus novel The Fall despite the seriousness of the subjects it deals with can (more)

Rasoulpour, Mastaneh

2013-01-01T23:59:59.000Z

63

Albert Camus's Meditative Ascent: A Search for Foundations in the Plague.  

E-Print Network (OSTI)

??Albert Camus's concept of absurdity states that human existence is fundamentally chaotic and meaningless. Despite this appraisal of existence, Camus tirelessly campaigned for human rights (more)

Blanchard, Brian James

2006-01-01T23:59:59.000Z

64

Albert Camus: a felicidade e a relao homem-natureza em dilogo com Epicuro.  

E-Print Network (OSTI)

??Este trabalho visa discutir o conceito felicidade e a relao homem-natureza nos ensaios de juventude de Albert Camus: Noces e Le mythe de Sisyphe. Supomos (more)

Fernando Rocha Sapaterro

2005-01-01T23:59:59.000Z

65

Western consciousness, absurdity, and rebellion: the influence of paradox in the early works of Albert Camus.  

E-Print Network (OSTI)

??This thesis explores the paradoxical nature of Albert Camus's ideas of Western consciousness, absurdity, and rebellion. Camus believes that as members of the Occident, we (more)

Lanier, Clinton David

2012-01-01T23:59:59.000Z

66

EXISTNCIA E RELIGIO EM ALBERT CAMUS: Relaes entre o absurdo e a revolta.  

E-Print Network (OSTI)

??A presente pesquisa busca, a partir dos dois plos fundamentais ao pensamento de Albert Camus, a saber, o absurdo e a revolta, discutir a relao (more)

KLEITON CERQUEIRA DE ALMEIDA

2010-01-01T23:59:59.000Z

67

Nenad Markovic Named Argonne Distinguished Fellow  

NLE Websites -- All DOE Office Websites (Extended Search)

Laboratory Distinguished Fellow, the laboratory's highest scientific and engineering rank. The Argonne Distinguished Fellow title is comparable in stature to an endowed chair at...

68

Tom wins Distinguished Scientist, Engineer Award  

NLE Websites -- All DOE Office Websites (Extended Search)

Recipient of the 2013 Distinguished ScientistEngineer Award Tom wins Distinguished Scientist, Engineer Award The Minerals, Metals & Materials Society recognized Tom for his...

69

Was Einstein 100% right ?  

E-Print Network (OSTI)

The confrontation between General Relativity and experimental results, notably binary pulsar data, is summarized and its significance discussed. The agreement between experiment and theory is numerically very impressive. However, some recent theoretical findings (existence of non-perturbative strong-field effects, natural cosmological attraction toward zero scalar couplings) suggest that the present agreement between Einstein's theory and experiment might be a red herring and provide new motivations for improving the experimental tests of gravity.

T. Damour

1994-12-21T23:59:59.000Z

70

Western consciousness, absurdity, and rebellion: the influence of paradox in the early works of Albert Camus  

E-Print Network (OSTI)

This thesis explores the paradoxical nature of Albert Camus's ideas of Western consciousness, absurdity, and rebellion. Camus believes that as members of the Occident, we are the products of both the Greco-Roman and Judeo-Christian cultures. We...

Lanier, Clinton David

2012-06-07T23:59:59.000Z

71

L'intertextualit avec les textes religieux dans l'oeuvre d'Albert Camus.  

E-Print Network (OSTI)

??Cette thse traite de la prsence des textes religieux dans l'uvre d'Albert Camus. Il s'agit de mettre en vidence l'intertextualit qui apparat, sous diffrentes formes, (more)

Al-Ibadi, Khudhair Abbas Mathi

2012-01-01T23:59:59.000Z

72

Existentialist ethical thought in the theatre of Gabriel Marcel, Albert Camus, and Jean-Paul Sartre.  

E-Print Network (OSTI)

??The Existentialist thought of Gabriel Marcel (1889-1973), Albert Camus (1913-1960), and Jean-Paul Sartre (1905-1980) is dominated by a concern for the ethical, and Marcel, Camus, (more)

Tattam, Helen

2007-01-01T23:59:59.000Z

73

Tra letteratura e filosofia: l' influenza del pensiero nietzscheano sull' opera di Albert Camus.  

E-Print Network (OSTI)

??L'intento del mio studio rinvenire l'influenza che il pensiero di F. Nietzsche ha avuto sull'opera di Albert Camus. La prima parte del mio elaborato (more)

COLUCCINI, RACHELE

2013-01-01T23:59:59.000Z

74

Lesthtique de la manipulation dans luvre dAlbert Camus.  

E-Print Network (OSTI)

??La manipulation est prsente au cur de luvre dAlbert Camus. Elle sexerce tant au niveau des personnages quau niveau du lecteur. Jean-Baptiste Clamence, dans La (more)

Marty, Claire

2011-01-01T23:59:59.000Z

75

West Indian mammals from the Albert Schwartz Collection: Biological and historical information  

E-Print Network (OSTI)

In the period 1954-1976, Albert Schwartz and several students working with him made extensive collections of mammals (ca. 2,000 specimens), reptiles and amphibians, birds, and butterflies in the West Indies. Schwartz's ...

Timm, Robert M.; Genoways, Hugh H.

2003-06-01T23:59:59.000Z

76

E-Print Network 3.0 - albert einsteini geeniuse Sample Search...  

NLE Websites -- All DOE Office Websites (Extended Search)

Su, A. I., Vellenga, E.,Wang, J., Manly, K. F., Lu, L., Chesler, E. J., Alberts, R., Jansen, R... hematopoietic stem cell function using 'genetical genomics', Nature Genetics 37,...

77

Einstein Shift and Doppler Shift  

Science Journals Connector (OSTI)

... IN answer to Sir Oliver Lodge's question (NATURE, December 26, p. 938), it depends on our point of view whether the Einstein shift ...

A. S. EDDINGTON

1926-01-16T23:59:59.000Z

78

Argonne Distinguished Fellows | Argonne National Laboratory  

NLE Websites -- All DOE Office Websites (Extended Search)

Argonne Distinguished Fellows Argonne's world-class scientists have achieved national and international recognition, including: Three Nobel Prizes, 119 R&D 100 Awards, More than...

79

Einstein and the Daytime Sky - C  

Office of Scientific and Technical Information (OSTI)

Einstein "Einstein and the Daytime Sky" (continued) A B C D C. Imitation of opal Since Einstein was addressing a more general question than the color of the atmosphere, his results...

80

Einstein's Proposal of the Photon Concepta Translation of the Annalen der Physik Paper of 1905  

Science Journals Connector (OSTI)

Of the trio of famous papers that Albert Einstein sent to the Annalen der Physik in 1905 only the paper proposing the photon concept has been unavailable in English translation. The American Journal of Physics is publishing the following translation in recognition of the sixtieth anniversary of the appearance of the original work. Physics teachers may take particular interest in the following aspects: (1) Einstein's keen awareness of the heuristic character of his new conception. (2) His demonstration from thermodynamic and statistical considerations that electromagnetic radiation might be conceived as consisting of finite numbers of discrete corpuscles of energy hv. (3) His prediction of the linear relation between the stopping potential of photoelectrons and the frequency of the incident light. This latter aspect of the photoelectric effect was not included among Lenard's early investigations. It remained for Millikan and others to develop the elegant experimental techniques that confirmed Einstein's bold prediction. Readers interested in pursuing the background in greater depth will find it rewarding to refer to the critical analyses by Martin J. Klein in Einstein's First Paper on Quanta in The Natural Philosopher (Blaisdell Publishing Company New York 1963) Vol. II and Einstein and the Wave-Particle Duality in The Natural Philosopher Vol. III 1964. We are grateful to Professor Klein for his criticism and advice regarding this translation and for his generosity in making available to us an unpublished translation of his own.

A. B. Arons; M. B. Peppard

1965-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "albert einstein distinguished" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Ein Vergleich der Sinnbegriffe aus der Perspektive der Existenzphilosophie Albert Camus und der Sicht der Logotherapie und Existenzanalyse Viktor Frankls.  

E-Print Network (OSTI)

??Angestrebt wurde ein Vergleich der Sinngebegriffe aus der Perspektive der Existenzphilosophie Albert Camus' und der Sicht der Logotherapie und Existenzanalyse Viktor Frankls. Nach einer etymologischen (more)

Bedenicec, Helena

2008-01-01T23:59:59.000Z

82

Le Dchirement et le Chtiment de Soi dans paves de Julien Green et la Chute d'Albert Camus.  

E-Print Network (OSTI)

?? This thesis explores how the paths of Julien Green and Albert Camus cross through paves and La Chute, when their characters question who they (more)

Aggoun, Imene

2013-01-01T23:59:59.000Z

83

From Suicide, to Acceptance through Faith, and then, to Defiant Revolt: Existential Absurdism in Albert Camus' The Stranger.  

E-Print Network (OSTI)

??Thesis (M.A. English Literature) This thesis examines the three stages of resolving the Absurd in existential Absurdism highlighted by Albert Camus in The Myth of (more)

Henke, Daniel

2013-01-01T23:59:59.000Z

84

A literature of modern suffering : suffering in the work of Feodor Dostoevsky, Albert Camus and Milan Kundera.  

E-Print Network (OSTI)

??This thesis examines the treatment of the theme of suffering by three modern authors: Feodor Dostoevsky, Albert Camus, and Milan Kundera. The analysis proceeds through (more)

Powell, Elisabeth

2007-01-01T23:59:59.000Z

85

Analysis of the parallel distinguished point tradeoff  

Science Journals Connector (OSTI)

Cryptanalytic time memory tradeoff algorithms are tools for quickly inverting one-way functions and many consider the rainbow table method to be the most efficient tradeoff algorithm. However, it was recently announced, mostly based on experiments, that ... Keywords: distinguished point, parallel distinguished point, rainbow table, time memory tradeoff

Jin Hong; Ga Won Lee; Daegun Ma

2011-12-01T23:59:59.000Z

86

Nanophotonic design principles for ultrahigh efficiency photovoltaics Harry Atwater, Albert Polman, Emily Kosten, Dennis Callahan, Pierpaolo Spinelli, Carissa Eisler, Matthew  

E-Print Network (OSTI)

Nanophotonic design principles for ultrahigh efficiency photovoltaics Harry Atwater, Albert Polman for ultrahigh efficiency photovoltaics Harry Atwater, 1,2 Albert Polman,2,1 , Emily Kosten, Dennis Callahan1 can enable ultrahigh efficiencies previously considered to be out of reach. Photovoltaic technology

Atwater, Harry

87

Symmetries of the Einstein Equations  

E-Print Network (OSTI)

Generalized symmetries of the Einstein equations are infinitesimal transformations of the spacetime metric that formally map solutions of the Einstein equations to other solutions. The infinitesimal generators of these symmetries are assumed to be local, \\ie at a given spacetime point they are functions of the metric and an arbitrary but finite number of derivatives of the metric at the point. We classify all generalized symmetries of the vacuum Einstein equations in four spacetime dimensions and find that the only generalized symmetry transformations consist of: (i) constant scalings of the metric (ii) the infinitesimal action of generalized spacetime diffeomorphisms. Our results rule out a large class of possible ``observables'' for the gravitational field, and suggest that the vacuum Einstein equations are not integrable.

C. G. Torre; I. M. Anderson

1993-02-23T23:59:59.000Z

88

Access Guide to the Albert Sloman Library Location of the library and its main spaces  

E-Print Network (OSTI)

Access Guide to the Albert Sloman Library Location of the library and its main spaces Access from the main squares Access within the library Accessible toilets Accessible parking Location of the Library The library is located on Square 5 (the nearest building to the lake. It is divided into 6 floors and the key

Codling, Edward A.

89

Distinguished Lecturer Series Understanding Climate Change  

E-Print Network (OSTI)

Distinguished Lecturer Series Understanding Climate Change: Opportunities and Challenges for Data A Climate change is the defining environmental challenge facing our planet, yet there is considerable.Anew and transformative approach is required to understand the potential impact of climate change. Data driven approaches

California at Davis, University of

90

Distinguished Engineering Graduate Outstanding Young Engineering Graduate  

E-Print Network (OSTI)

, or service delivery through the application of engineering principles; or · Contributed truly exceptional2013 Distinguished Engineering Graduate and Outstanding Young Engineering Graduate Award Nomination Form Print Form #12;The highest honor the Cockrell School of Engineering can bestow on one of its own

Lightsey, Glenn

91

Argonne names Distinguished Fellows for 2014 | Argonne National...  

NLE Websites -- All DOE Office Websites (Extended Search)

Messina as Distinguished Fellows, the laboratory's highest scientific and engineering rank. The Argonne Distinguished Fellow title is comparable in stature to an endowed chair at...

92

Wigner distinguished lecturer Majumdar says scale-up factor key...  

NLE Websites -- All DOE Office Websites (Extended Search)

speaks at ORNL's Wigner Distinguished Lecture Series. Arun Majumdar, vice president of energy at Google, speaks at ORNL's Wigner Distinguished Lecture Series. (hi-res image)...

93

APS Director Stephenson Named Argonne Distinguished Fellow  

NLE Websites -- All DOE Office Websites (Extended Search)

Advanced Photon Source, Canadian Light Source Strengthen Ties, Expand X-ray Advanced Photon Source, Canadian Light Source Strengthen Ties, Expand X-ray Technology and Research Rose of APS and CNM One of Four DOE Early Career Award Winners Scientists Close-In on Artificial Spider Silk Ekiert Earns 2012 APSUO Franklin Award for Studies of Influenza Virus Clever Apes on WBEZ: Breaking the Fossil Record APS News Archives: 2012 | 2011 | 2010 | 2009 2008 | 2007 | 2006 | 2005 2004 | 2003 | 2002 | 2001 2000 Subscribe to APS News rss feed APS Director Stephenson Named Argonne Distinguished Fellow JULY 19, 2012 Bookmark and Share Brian Stephenson Brian Stephenson has been named one of five Argonne National Laboratory Distinguished Fellows for 2012. Stephenson is the Argonne Associate Laboratory Director for Photon Sciences and Director of the U.S. Department

94

Schizophrenia: from phenomenology to neurobiology Albert Hung Choy Wonga,b,*, Hubert H.M. Van Tola,b,c  

E-Print Network (OSTI)

Review Schizophrenia: from phenomenology to neurobiology Albert Hung Choy Wonga,b,*, Hubert H to the phenomenology, pathology, treatment, genetics and neurobiology of schizophrenia. Although studied extensively . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 270 2. Schizophrenia: phenomenology

Bruno, John P.

95

100 years of Einstein's theory of Brownian motion: from pollen grains to protein trains  

E-Print Network (OSTI)

Experimental verification of the theoretical predictions made by Albert Einstein in his paper, published in 1905, on the molecular mechanisms of Brownian motion established the existence of atoms. In the last 100 years discoveries of many facets of the ubiquitous Brownian motion has revolutionized our fundamental understanding of the role of {\\it thermal fluctuations} in the exotic structures and complex dynamics exhibited by soft matter like, for example, colloids, gels, etc. The domain of Brownian motion transcends the traditional disciplinary boundaries of physics and has become an area of multi-disciplinary research. Brownian motion finds applications also in earth and environmental sciences as well as life sciences. Nature exploits Brownian motion for running many dynamical processes that are crucial for sustaining life. In the first one-third of this article I present a brief historical survey of the initial period, including works of Brown and Einstein. In the next one-third I introduce the main concepts and the essential theoretical techniques used for studying translational as well as rotational Brownian motions and the effects of time-independent potentials. In the last one-third of this article I discuss some contemporary problems on Brownian motion in time-dependent potentials, namely, {\\it stochastic resonance} and {\\it Brownian ratchet}, two of the hottest topics in this area of interdisciplinary research.

Debashish Chowdhury

2005-04-24T23:59:59.000Z

96

AEF Logos | U.S. DOE Office of Science (SC)  

NLE Websites -- All DOE Office Websites (Extended Search)

AEF Logos AEF Logos Albert Einstein Distinguished Educator Fellowship (AEF) Program Einstein Fellowship Home Eligibility Benefits Obligations How to Apply Key Dates Frequently Asked Questions Contact WDTS Home AEF Logos Print Text Size: A A A RSS Feeds FeedbackShare Page Graphical Element Requirements Usage Policy Logo Description Clear Space Padding Sizing Color Variations Download Official Albert Einstein Distinguished Educator Fellowship (AEF) Program Logos Download AEF Logos Usage Policy The Albert Einstein Distinguished Educator Fellowship (AEF) Program logos should only be obtained directly from the download links on this page. Only unaltered usage is permitted. Usage does not require explicit permission. The logos shall not be used in any manner that falsely implies employment

97

Albert-Ludwigs-Universitt Freiburg 3 Mi Tag der Deutschen Einheit  

E-Print Network (OSTI)

Albert-Ludwigs-Universität Freiburg Oktober 1 Mo 2 Di 3 Mi Tag der Deutschen Einheit 4 Do 5 Fr 6 Sa 7 So 8 Mo 9 Di 10 Mi 11 Do 12 Fr 13 Sa 14 So 15 Mo 16 Di 17 Mi 18 Do 19 Fr Erstsemesternachmittag 20 Sa 21 So 22 Mo Semesterbeginn WiSe 12/13 23 Di 24 Mi Eröffnung Akademisches Jahr 25 Do 26 Fr 27 Sa 28

Schindelhauer, Christian

98

Parameterized Beyond-Einstein Growth  

SciTech Connect

A single parameter, the gravitational growth index gamma, succeeds in characterizing the growth of density perturbations in the linear regime separately from the effects of the cosmic expansion. The parameter is restricted to a very narrow range for models of dark energy obeying the laws of general relativity but can take on distinctly different values in models of beyond-Einstein gravity. Motivated by the parameterized post-Newtonian (PPN) formalism for testing gravity, we analytically derive and extend the gravitational growth index, or Minimal Modified Gravity, approach to parameterizing beyond-Einstein cosmology. The analytic formalism demonstrates how to apply the growth index parameter to early dark energy, time-varying gravity, DGP braneworld gravity, and some scalar-tensor gravity.

Linder, Eric; Linder, Eric V.; Cahn, Robert N.

2007-09-17T23:59:59.000Z

99

Entropic corrections to Einstein equations  

SciTech Connect

Considering the general quantum corrections to the area law of black hole entropy and adopting the viewpoint that gravity interprets as an entropic force, we derive the modified forms of Modified Newtonian dynamics (MOND) theory of gravitation and Einstein field equations. As two special cases we study the logarithmic and power-law corrections to entropy and find the explicit form of the obtained modified equations.

Hendi, S. H. [Physics Department, College of Sciences, Yasouj University, Yasouj 75914 (Iran, Islamic Republic of); Research Institute for Astronomy and Astrophysics of Maragha (RIAAM), Maragha (Iran, Islamic Republic of); Sheykhi, A. [Research Institute for Astronomy and Astrophysics of Maragha (RIAAM), Maragha (Iran, Islamic Republic of); Department of Physics, Shahid Bahonar University, P.O. Box 76175-132, Kerman (Iran, Islamic Republic of)

2011-04-15T23:59:59.000Z

100

Scholarships and Fellowships | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Scholarships and Fellowships Scholarships and Fellowships Scholarships and Fellowships Energy Department Scholarships and Fellowships: Albert Einstein Distinguished Educator Fellowship Program The Albert Einstein Distinguished Educator Fellowship Act was signed into law in November 1994. The law gives the Department of Energy responsibility for administering the program of distinguished educator fellowships for elementary and secondary school mathematics and science teachers. Selected teachers spend eleven months in a Congressional Office or a Federal agency. Agencies that have participated include: the Department of Energy (DOE), the National Science Foundation (NSF), the National Aeronautics and Space Administration (NASA), the National Institutes of Health (NIH), the Department of Education (ED), National Institute of Standards and

Note: This page contains sample records for the topic "albert einstein distinguished" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Type II Einstein spacetimes in higher dimensions  

E-Print Network (OSTI)

This short note shows that many of the results derived by Pravda et al (Class. Quant. Grav. 24 4407-4428) for higher-dimensional Type D Einstein spacetimes can be generalized to all Einstein spacetimes admitting a multiple WAND; the main new result being the extension to include the Type II case. Examples of Type D Einstein spacetimes admitting non-geodesic multiple WANDs are given in all dimensions greater than 4.

Mark Durkee

2009-04-28T23:59:59.000Z

102

Construction of Conformally Compact Einstein Manifolds  

E-Print Network (OSTI)

We produce some explicit examples of conformally compact Einstein manifolds, whose conformal compactifications are foliated by Riemannian products of a closed Einstein manifold with the total space of a principal circle bundle over products of Kahler-Einstein manifolds. We compute the associated conformal invariants, i.e., the renormalized volume in even dimensions and the conformal anomaly in odd dimensions. As a by-product, we obtain some Riemannian products with vanishing Q-curvature.

Dezhong Chen

2009-08-11T23:59:59.000Z

103

Bose-Einstein Weights for Event Generators  

E-Print Network (OSTI)

A simple new algorithm for the calculation of two-particle Bose-Einstein correlations from classical event generators is derived and discussed.

Q. H. Zhang; U. A. Wiedemann; C. Slotta; U. Heinz

1997-04-21T23:59:59.000Z

104

Einstein and the Daytime Sky - B  

Office of Scientific and Technical Information (OSTI)

B. Effects of an uneven random distribution Einstein's work involved giving some greater mathematical precision to some recent ideas of the physicist Marian von Smoluchowski....

105

Einstein's Apple and Relativity's Gravitational Field  

E-Print Network (OSTI)

The foundations of Einstein's first (1907) principle of equivalence are explored and their consequences are stated in terms of invariance under generalized Lorentz transformations, first explored by Hessenberg.

Engelbert L. Schucking

2009-03-31T23:59:59.000Z

106

Chemistry and Engineering News Volume 90 Issue 7 | February 13, 2012 | pp. 48-49 | F. Albert Cotton Award In Synthetic Inorganic Chemistry  

E-Print Network (OSTI)

Chemistry and Engineering News Volume 90 Issue 7 | February 13, 2012 | pp. 48-49 | Awards F. Albert Cotton Award In Synthetic Inorganic Chemistry By Sophie Rovner Department: ACS News Keywords: inorganic chemistry, Christopher Reed Awards Reed Credit: Courtesy of Christopher A. Reed Sponsored by the F. Albert

Reed, Christopher A.

107

Connecting the Classroom: Guiding Energy Educators | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Connecting the Classroom: Guiding Energy Educators Connecting the Classroom: Guiding Energy Educators Connecting the Classroom: Guiding Energy Educators September 25, 2013 - 10:13am Addthis Josh Sneideman is an Albert Einstein Distinguished Educator Fellow and helps lead the Energy Department's Energy Literacy efforts. (Photo courtesy of Eco Organization) Josh Sneideman is an Albert Einstein Distinguished Educator Fellow and helps lead the Energy Department's Energy Literacy efforts. (Photo courtesy of Eco Organization) Daniel Boff Intern, Office of Energy Efficiency and Renewable Energy Josh Sneideman is EERE's Office of Strategic Program's Albert Einstein Distinguished Educator Fellow. He is dedicated to leading Energy Literacy efforts for EERE's Workforce Development and Education Team. Below, he shares his ideas about DOE's Energy Literacy Framework and energy

108

A Low-Cost Quantitative Absorption Spectrophotometer Daniel R. Albert, Michael A. Todt, and H. Floyd Davis*  

E-Print Network (OSTI)

A Low-Cost Quantitative Absorption Spectrophotometer Daniel R. Albert, Michael A. Todt, and H with spectrophotometry. Additionally, more than 75% of the high school teachers polled stated that the high cost of modern spectrophotometers was prohibitive for regular classroom use. The lowest-cost modern

Davis, H. Floyd

109

Building trees based on aggregation efficiency in sensor networks Albert F. Harris III a,*, Robin Kravets b  

E-Print Network (OSTI)

-mail addresses: harris@dei.unipd.it (A.F. Harris III), rhk@cs.uiuc.edu (R. Kravets), indy@cs.uiuc.edu (I. GuptaBuilding trees based on aggregation efficiency in sensor networks Albert F. Harris III a,*, Robin 2007 Elsevier B.V. All rights reserved. doi:10.1016/j.adhoc.2007.02.021 * Corresponding author. E

Kravets, Robin

110

Effects of testing conditions on conceptual survey results Lin Ding, Neville W. Reay, Albert Lee, and Lei Bao  

E-Print Network (OSTI)

Effects of testing conditions on conceptual survey results Lin Ding, Neville W. Reay, Albert Lee 2008; published 9 June 2008 Pre-testing and post-testing is a commonly used method in Physics Education and incentives in delivering conceptual tests can impact test results. However, it is difficult to control

Bao, Lei

111

District of Columbia | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

25, 2013 25, 2013 Introducing the Minorities in Energy Initiative A new Energy Department initiative seeks to inspire underrepresented Americans to pursue careers in energy fields. September 25, 2013 Josh Sneideman is an Albert Einstein Distinguished Educator Fellow and helps lead the Energy Department's Energy Literacy efforts. (Photo courtesy of Eco Organization) Connecting the Classroom: Guiding Energy Educators Josh Sneideman is EERE's Office of Strategic Program's Albert Einstein Distinguished Educator Fellow. He is dedicated to leading Energy Literacy efforts for EERE's Workforce Development and Education Team. In this post, he shares his ideas about DOE's Energy Literacy Framework and energy education. September 20, 2013 DOE OIG Strategic Plan Fiscal Years 2014 - 2019

112

The modification of Einstein`s gravitational field equation following from the energy conservation law  

E-Print Network (OSTI)

The cause of an infringement in GR of a gravitational field energy conservation law is investigated . The equation of a gravitational field not contradicting to the energy conservation law is suggested. This equation satisfy to the Einstein,s requirement of equivalence of all energy kinds as sources of a gravitational field. This equation is solved in paper for cosmic objects. It is showed, that results for some objects - for black holes and gravitating strings-essentialy differ from such for Einstein,s equation, have the symple meaning and do not contradictions.

Roald Sosnovskiy

2009-01-16T23:59:59.000Z

113

Einstein's Energy-Free Gravitational Field  

E-Print Network (OSTI)

We show that Einstein's gravitational field has zero energy, momentum, and stress. This conclusion follows directly from the gravitational field equations, in conjunction with the differential law of energy-momentum conservation $ T^{\\mu\

Kenneth Dalton

1998-03-13T23:59:59.000Z

114

Einstein's Apple: His First Principle of Equivalence  

E-Print Network (OSTI)

After a historical discussion of Einstein's 1907 principle of equivalence, a homogeneous gravitational field in Minkowski spacetime is constructed. It is pointed out that the reference frames in gravitational theory can be understood as spaces with a flat connection and torsion defined through teleparallelism. This kind of torsion was introduced by Einstein in 1928. The concept of torsion is discussed through simple examples and some historical observations.

Engelbert L. Schucking; Eugene J. Surowitz

2012-08-09T23:59:59.000Z

115

Einstein's Biggest Blunder: A Cosmic Mystery Story  

ScienceCinema (OSTI)

The standard model of cosmology built up over 20 years is no longer accepted as accurate. New data suggest that most of the energy density of the universe may be contained in empty space. Remarkably, this is exactly what would be expected if Einstein's cosmological constant really exists. If it does, its origin is the biggest mystery in physics and presents huge challenges for the fundamental theories of elementary particles and fields. Krauss explains Einstein's concept and describes its possible implications.

Lawrence Krauss

2010-09-01T23:59:59.000Z

116

NOMINATION FORM 2010 Distinguished Texan in Agriculture Award  

E-Print Network (OSTI)

NOMINATION FORM 2010 Distinguished Texan in Agriculture Award Texas A&M AgriLife The Texas A/her contributions on behalf of the Texas agricultural industry and community (information may be submitted:__________________________________________________________ ________________________________________________________________________ RETURN NOMINATIONS TO 2010 Distinguished Texan in Agriculture Selection Advisory Committee c/o Office

117

A Case EnterpriseStudy of OSPF Behavior in a Large Amen Sheikh, Chris Isett, Albert Greenberg, Matthew Roughen, Joel Gottlieb  

E-Print Network (OSTI)

Greenberg, Matthew Roughen, Joel Gottlieb Abstractm Open Shortest Path First (OSPF) is widely deployed in IPMedicalSolutions,Malvem, PA 19355. E-mail: chris.isett@smed.com Albert Greenberg, Matthew Roughen and Joel Gottlieb

Roughan, Matthew

118

NNSA's Global Threat Reduction Initiative Receives 2010 Distinguished  

NLE Websites -- All DOE Office Websites (Extended Search)

Receives 2010 Distinguished Receives 2010 Distinguished Project Award from PMI | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Home > Media Room > Press Releases > NNSA's Global Threat Reduction Initiative Receives 2010 ... Press Release NNSA's Global Threat Reduction Initiative Receives 2010 Distinguished

119

Two from APS Receive U. of C. Distinguished Performance Award  

NLE Websites -- All DOE Office Websites (Extended Search)

Two from APS Receive U. of C. Distinguished Performance Award Two from APS Receive U. of C. Distinguished Performance Award Wah-Keat Lee and Jin Wang (both ANL-XFD) are among five scientists from the U.S. Department of Energy's Argonne National Laboratory who have received the 2005 University of Chicago Board of Governors for Argonne Distinguished Performance Award, which recognizes outstanding scientific or technical achievements or a distinguished record of achievements. Wang and Lee are being honored for their success in using X-rays in a wide range of research. Wang is a world-renowned expert in the application of X-ray scattering to a variety of materials science problems. He is best known for his research into the dynamics of fuel sprays, where he applied an innovative research approach and achieved unique results. Lee, after

120

Allosteric networks in thrombin distinguish procoagulant vs. anticoagulant activities  

E-Print Network (OSTI)

Allosteric networks in thrombin distinguish procoagulant vs. anticoagulant activities Paul M elected in 2011. Contributed by J. Andrew McCammon, October 29, 2012 (sent for review September 24, 2012

Komives, Elizabeth A.

Note: This page contains sample records for the topic "albert einstein distinguished" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Distinguishable patterns of competition, collusion, and parallel action  

E-Print Network (OSTI)

Alternative market structures are distinguishable by the degree of parallel action exhibited by producers. We show that the correlation between output levels varies systematically with the degree of interdependence among ...

Smith, James L.

2003-01-01T23:59:59.000Z

122

Jefferson Lab Science Series - Einstein for Everyone  

NLE Websites -- All DOE Office Websites (Extended Search)

The Restoration of the USS Monitor The Restoration of the USS <i>Monitor</i> Previous Video (The Restoration of the USS Monitor) Science Series Video Archive Next Video (The Mysterious Universe) The Mysterious Universe Einstein for Everyone Dr. Robert Piccioni October 5, 2010 Young Einstein was a rebel who seemed doomed to fail. How did he overcome rejection to become the most famous scientist in history? We will discuss and explain all his theories in plain English and without math, and we will discover how Einstein's achievements impact our lives through DVDs, GPS, iPods, computers and green energy. Is the space above this area blank? If so, there may be a problem loading the embedded version of the video from YouTube. Either their server is having issues or your school is actively blocking access to YouTube. If

123

Gas Combustion Appliances: Validating VENT-II Vi H. Rapp, Albert Pastor-Perez, Brett C. Singer, and  

NLE Websites -- All DOE Office Websites (Extended Search)

Predicting Backdrafting and Spillage for Natural-Draft Predicting Backdrafting and Spillage for Natural-Draft Gas Combustion Appliances: Validating VENT-II Vi H. Rapp, Albert Pastor-Perez, Brett C. Singer, and Craig P. Wray Environmental Energy Technologies Division April 2013 In Press as: Vi H. Rapp, Albert Pastor-Perez, Brett C. Singer, and Craig P. Wray. 2013. "Predicting Backdrafting and Spillage for Natural-Draft Gas Combustion Appliances: A Validation of VENT-II". HVAC&R Research, DOI:10.1080/10789669.2013.771948 LBNL-6193E 2 DISCLAIMER This document was prepared as an account of work sponsored by the United States Government. While this document is believed to contain correct information, neither the United States Government nor any agency thereof,

124

Nobel Prize in Physics 1921  

NLE Websites -- All DOE Office Websites (Extended Search)

1 1 The prize was reserved and awarded in 1922 "for his services to Theoretical Physics, and especially for his discovery of the law of the photoelectric effect" Albert Einstein Button Germany, Switzerland & USA* Button born 1879 (Ulm, Germany), died 1955 Button CA - Institute for Advanced Study, Princeton, New Jersey, USA Button AA - Swiss Patent Office, Bern, Switzerland Button WA - Swiss Patent Office Button Additional Information *Explanation of CA, AA & WA* Additional Information: Nobel e-Museum Prize in Physics 1921 Albert Einstein Image and Impact Albert Einstein Archives Einstein Archives Online NOVA Online/Einstein Revealed Time 100: Scientists & Thinkers - Albert Einstein Albert Einstein Freedom of Information Act Albert Einstein web site

125

Cardiff University Distinguished Lecture Symposium Advances in Solar Energy  

E-Print Network (OSTI)

Cardiff University Distinguished Lecture Symposium Advances in Solar Energy Thursday 22nd March prospects for inorganic thin film photovoltaic solar cells for large scale energy generation 2:55 Dr Emyr:50 Professor James Durrant (Imperial College London, England) Photochemical approaches to solar energy

Martin, Ralph R.

126

Russ Miller Distinguished Professor and Director of the Cyberinfrastructure Laboratory  

E-Print Network (OSTI)

with the citation "for an outstanding and lasting contribution to parallel algorithms and computer science education to be unsolvable. This work was recognized by the IEEE with its inclusion in the IEEE poster "Top 10 Algorithms and industrial partnerships ..." Dr. Miller maintains appointments as Distinguished Professor of Computer Science

Miller, Russ

127

NORTHERN ILLINOIS UNIVERSITY Distinguished NanoScience Fellowship Application  

E-Print Network (OSTI)

NORTHERN ILLINOIS UNIVERSITY Distinguished NanoScience Fellowship Application Students should submit this form to the Nanoscience Fellowship Committee by the applicant advisor. Attach a brief summary of your performed and proposed research in nanoscience, together with a resume or curriculum vitae (if

Kostic, Milivoje M.

128

MIT Center for Transportation & Logistics Distinguished Speakers Series  

E-Print Network (OSTI)

MIT Center for Transportation & Logistics Distinguished Speakers Series Richard A. Davey MBTA;Transportation Reform ­ Moving Forward Transportation Reform Governance & Oversight · MBTA Board reconfigured mirroring the MassDOT's Five (5) member Board. · MBTA remains a separate legal entity from MassDOT. · MBTA

Entekhabi, Dara

129

Distinguishing between Dirac and Majorana neutrinos withtwo-particle interferometry  

SciTech Connect

Two-particle interferometry, a second-order interferenceeffect, is explored as another possible tool to distinguish betweenmassive Dirac and Majorana neutrinos. A simple theoretical framework isdiscussed in the context of several gedanken experiments. The method canin principle provide both the mass scale and the quantum nature of theneutrino for a certain class of incoherent left-handed sourcecurrents.

Gutierrez, Thomas D.

2006-03-02T23:59:59.000Z

130

Relativistic Bose-Einstein condensation with disorder  

E-Print Network (OSTI)

We investigate the thermodynamics of a self-interacting relativistic charged scalar field in the presence of weak disorder. We consider quenched disorder which couples linearly to the mass of the scalar field. After performing noise averages over the free energy of the system, we find that disorder increases the mean-field critical temperature for Bose-Einstein condensation at finite density. The effect of disorder on the temperature dependence of the chemical potential for a fixed charge density is investigated. Significant differences from the mean-field temperature dependence of the chemical potential are observed as the strength of the noise intensity increases. Finally, the temperature dependence of the chemical potential with fixed total charge and entropy is investigated. It is found that there is no Bose-Einstein condensation for a fixed charge to entropy ratio in the presence of weak disorder. The possible relevance of the findings in the present paper in different areas is discussed.

E. Arias; G. Krein; G. Menezes; N. F. Svaiter

2014-10-26T23:59:59.000Z

131

Axions: Bose Einstein Condensate or Classical Field?  

E-Print Network (OSTI)

The axion is a motivated dark matter candidate, so it would be interesting to find features in Large Scale Structures specific to axion dark matter. Such features were proposed for a Bose Einstein condensate of axions, leading to confusion in the literature (to which I contributed) about whether axions condense due to their gravitational interactions. This note argues that the Bose Einstein condensation of axions is a red herring: the axion dark matter produced by the misalignment mechanism is already a classical field, which has the distinctive features attributed to the axion condensate (BE condensates are described as classical fields). This note also estimates that the rate at which axion particles condense to the field, or the field evaporates to particles, is negligeable.

Sacha Davidson

2014-12-20T23:59:59.000Z

132

A modification of Einstein-Schrodinger theory that contains Einstein-Maxwell-Yang-Mills theory  

E-Print Network (OSTI)

The Lambda-renormalized Einstein-Schrodinger theory is a modification of the original Einstein-Schrodinger theory in which a cosmological constant term is added to the Lagrangian, and it has been shown to closely approximate Einstein-Maxwell theory. Here we generalize this theory to non-Abelian fields by letting the fields be composed of dxd Hermitian matrices. The resulting theory incorporates the U(1) and SU(d) gauge terms of Einstein-Maxwell-Yang-Mills theory, and is invariant under U(1) and SU(d) gauge transformations. The special case where symmetric fields are multiples of the identity matrix closely approximates Einstein-Maxwell-Yang-Mills theory in that the extra terms in the field equations are 10^-13 of the usual terms for worst-case fields accessible to measurement. The theory contains a symmetric metric and Hermitian vector potential, and is easily coupled to the additional fields of Weinberg-Salam theory or flipped SU(5) GUT theory. We also consider the case where symmetric fields have small traceless parts, and show how this suggests a possible dark matter candidate.

J. A. Shifflett

2008-04-11T23:59:59.000Z

133

On Renormalized Einstein Phonons and Green Function  

Science Journals Connector (OSTI)

The problem of interacting Einstein phonons is treated by deriving the Green function through a functional derivative approach employing the Hamiltonian of Born-von Kaacute;rmn. In this case the Dyson equation yields an exact solution for the Green function whose poles are the frequency versus wave vector dispersion relation. The Green function is used to calculate the internal energy and the Helmholtz free energy of the crystal. The latter is derived by integrating the average interactionenergy over the coupling parameter.

Ramesh C. Shukla; Eric R. Muller

1971-01-01T23:59:59.000Z

134

Cosmic Axion Bose-Einstein Condensation  

E-Print Network (OSTI)

QCD axions are a well-motivated candidate for cold dark matter. Cold axions are produced in the early universe by vacuum realignment, axion string decay and axion domain wall decay. We show that cold axions thermalize via their gravitational self-interactions, and form a Bose-Einstein condensate. As a result, axion dark matter behaves differently from the other proposed forms of dark matter. The differences are observable.

Banik, Nilanjan

2015-01-01T23:59:59.000Z

135

k-Boson Quantum Walks Do Not Distinguish Arbitrary Graphs  

E-Print Network (OSTI)

In this paper, we define k-equivalence, a relation on graphs that relies on their associated cellular algebras. We show that a k-Boson quantum walk cannot distinguish pairs of graphs that are k- equivalent. The existence of pairs of k-equivalent graphs has been shown by Ponomarenko et al. [2, 6]. This gives a negative answer to a question posed by Gamble et al. [7].

Jamie Smith

2010-04-01T23:59:59.000Z

136

Extended Ho?ava gravity and Einstein-aether theory  

Science Journals Connector (OSTI)

Einstein-aether theory is general relativity coupled to a dynamical, unit timelike vector. If this vector is restricted in the action to be hypersurface orthogonal, the theory is identical to the IR limit of the extension of Ho?ava gravity proposed by Blas, Pujols and Sibiryakov. Hypersurface orthogonal solutions of Einstein-aether theory are solutions to the IR limit of this theory, hence numerous results already obtained for Einstein-aether theory carry over.

Ted Jacobson

2010-05-19T23:59:59.000Z

137

Splitting the source term for the Einstein equation to classical and quantum parts  

E-Print Network (OSTI)

We consider the special and general relativistic extensions of the action principle behind the Schr\\"odinger equation distinguishing classical and quantum contributions from the wave function field. Postulating a particular quantum correction to the source term in the classical Einstein equation we identify the conformal content of the above action and obtain classical gravitation for massive particles, but with a cosmological term representing off-mass-shell contribution to the energy-momentum tensor. In this scenario the - on the Planck scale surprisingly small - cosmological constant stems from quantum binding with a Bohr radius $a$ as being $\\Lambda=3/a^2$. This is the same relation as for the de Sitter cosmological horizon.

T. S. Bir; P. Vn

2013-12-04T23:59:59.000Z

138

August 2, 1939: Einstein's Letter | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

possibility that research might lead to developing powerful bombs. Einstein notes that Germany has stopped the sale of uranium and German physicists are engaged in uranium research...

139

Fall Lectures Feature Life of Einstein; Exploring Our World With...  

NLE Websites -- All DOE Office Websites (Extended Search)

Fall Lectures Feature Life of Einstein; Exploring Our World With Particle Accelerators NEWPORT NEWS, Va., Sept. 22, 2010 - Jefferson Lab's first 2010 Fall Science Series lecture,...

140

Recommender Information | U.S. DOE Office of Science (SC)  

Office of Science (SC) Website

Recommender Information Recommender Information Albert Einstein Distinguished Educator Fellowship (AEF) Program Einstein Fellowship Home Eligibility Benefits Obligations How to Apply Recommender Information Application Review and Selection Process Key Dates Frequently Asked Questions Contact WDTS Home How to Apply Recommender Information Print Text Size: A A A RSS Feeds FeedbackShare Page For Recommenders Letters of recommendation are due before December 4, 2013, at 5:00PM EST. A completed Einstein Fellowship application requires letters of recommendation from three individuals familiar with the applicant's professional and education background and their experience, aptitude, or promise relevant to the Einstein Fellowship program. Applicants are responsible for sending the recommendation request to

Note: This page contains sample records for the topic "albert einstein distinguished" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

Multimessenger astronomy with the Einstein Telescope  

E-Print Network (OSTI)

Gravitational waves (GWs) are expected to play a crucial role in the development of multimessenger astrophysics. The combination of GW observations with other astrophysical triggers, such as from gamma-ray and X-ray satellites, optical/radio telescopes, and neutrino detectors allows us to decipher science that would otherwise be inaccessible. In this paper, we provide a broad review from the multimessenger perspective of the science reach offered by the third generation interferometric GW detectors and by the Einstein Telescope (ET) in particular. We focus on cosmic transients, and base our estimates on the results obtained by ET's predecessors GEO, LIGO, and Virgo.

Eric Chassande-Mottin; Martin Hendry; Patrick J. Sutton; Szabolcs Mrka

2010-04-12T23:59:59.000Z

142

Bose-Einstein condensation on quantum graphs  

E-Print Network (OSTI)

We present results on Bose-Einstein condensation (BEC) on general compact quantum graphs, i.e., one-dimensional systems with a (potentially) complex topology. We first investigate non-interacting many-particle systems and provide a complete classification of systems that exhibit condensation. We then consider models with interactions that consist of a singular part as well as a hardcore part. In this way we obtain generalisations of the Tonks-Girardeau gas to graphs. For this we find an absence of phase transitions which then indicates an absence of BEC.

Jens Bolte; Joachim Kerner

2014-03-02T23:59:59.000Z

143

On distinguishing trees by their chromatic symmetric functions  

E-Print Network (OSTI)

solution will play a role in the proof. Letm1, . . . ,mk be nonnegative integers with ?mi = `. Suppose that we have ` distinguishable boxes, of which mi have capacity i for each i ? [k]. Let ?(m1, . . . ,mk) be the number of ways of distributing k... indistinguishable balls among these boxes so that no box is filled beyond its capacity. In general, it is not easy to write down a closed formula for ?(m1, . . . ,mk), although individual instances can be computed using an inclusion-exclusion argument (for example...

Martin, Jeremy L.; Morin, Matthew; Wagner, Jennifer D.

2008-02-01T23:59:59.000Z

144

Non-Riemannian Gravity and the Einstein-Proca System  

E-Print Network (OSTI)

We argue that all Einstein-Maxwell or Einstein-Proca solutions to general relativity may be used to construct a large class of solutions (involving torsion and non-metricity) to theories of non-Riemannian gravitation that have been recently discussed in the literature.

T Dereli; M nder; J Schray; R W Tucker; C Wang

1996-04-22T23:59:59.000Z

145

Disembodied boundary data for Einstein's equations  

SciTech Connect

A strongly well-posed initial boundary value problem based upon constraint-preserving boundary conditions of the Sommerfeld type has been established for the harmonic formulation of the vacuum Einstein's equations. These Sommerfeld conditions have been previously presented in a four-dimensional geometric form. Here we recast the associated boundary data as three-dimensional tensor fields intrinsic to the boundary. This provides a geometric presentation of the boundary data analogous to the three-dimensional presentation of Cauchy data in terms of three-metric and extrinsic curvature. In particular, diffeomorphisms of the boundary data lead to vacuum spacetimes with isometric geometries. The proof of well-posedness is valid for the harmonic formulation and its generalizations. The Sommerfeld conditions can be directly applied to existing harmonic codes which have been used in simulating binary black holes, thus ensuring boundary stability of the underlying analytic system. The geometric form of the boundary conditions also allows them to be formally applied to any metric formulation of Einstein's equations, although well-posedness of the boundary problem is no longer ensured. We discuss to what extent such a formal application might be implemented in a constraint-preserving manner to 3+1 formulations, such as the Baumgarte-Shapiro-Shibata-Nakamura system which has been highly successful in binary black hole simulation.

Winicour, Jeffrey [Department of Physics and Astronomy University of Pittsburgh, Pittsburgh, Pennsylvania 15260 (United States); Max-Planck-Institut fuer Gravitationsphysik, Albert-Einstein-Institut, 14476 Golm (Germany)

2009-12-15T23:59:59.000Z

146

Eligibility | U.S. DOE Office of Science (SC)  

Office of Science (SC) Website

Eligibility Eligibility Albert Einstein Distinguished Educator Fellowship (AEF) Program Einstein Fellowship Home Eligibility Benefits Obligations How to Apply Key Dates Frequently Asked Questions Contact WDTS Home Eligibility Print Text Size: A A A RSS Feeds FeedbackShare Page Eligibility for the Albert Einstein Distinguished Educator Fellowship requires that all applicants: Be a U.S. citizen at the time of applying (December 4, 2013); Have a minimum of five years full-time classroom teaching experience prior to completing the application; Have been teaching full-time in a public or private elementary or secondary school for at least five of the last seven years in a science, technology, engineering, or mathematics (STEM) discipline; Be currently employed full-time in a public or private elementary or

147

Obligations | U.S. DOE Office of Science (SC)  

Office of Science (SC) Website

Obligations Obligations Albert Einstein Distinguished Educator Fellowship (AEF) Program Einstein Fellowship Home Eligibility Benefits Obligations How to Apply Key Dates Frequently Asked Questions Contact WDTS Home Obligations Print Text Size: A A A RSS Feeds FeedbackShare Page The Albert Einstein Distinguished Educator Fellowship is intended to support the intellectual and professional development of K-12 teachers in science, math, engineering, or technology fields who have the desire to bring their education and classroom expertise to Washington, DC, for the mutual benefit to Federal agency and U.S. Congressional offices. Selected candidates have the following program obligations: Must provide proof of U.S. citizenship upon accepting a Fellowship offer; Must provide proof of approved leave of absence from teaching;

148

Einstein and the Daytime Sky - D  

NLE Websites -- All DOE Office Websites (Extended Search)

D. Fun with polarizers D. Fun with polarizers In one respect, Einstein's mathematical analysis (like Rayleigh's earlier one) proves quite accurate, in a way that's easy to demonstrate. This has to do with how the sky's scattered light is polarized. Try looking at a patch of clear sky through one lens of a pair of polarizing sunglasses while you rotate the lens. You'll notice that the sky looks brighter as you look through the lens in some positions, and darker when the lens is in other positions. If the sun is not far from the patch of sky you're looking at, you'll find that the sky looks brightest when the sun is to the left or right of the lens, and darkest when the sun is "above the top" or "below the bottom" of the lens. Why is this? Any kind of wave-whether sound wave, water wave, light wave-is associated

149

Neutron stars in Einstein-aether theory  

E-Print Network (OSTI)

As current and future experiments probe strong gravitational regimes around neutron stars and black holes, it is desirable to have theoretically sound alternatives to general relativity against which to test observations. Here we study the consequences of one such generalization, Einstein-aether theory, for the properties of non-rotating neutron stars. This theory has a parameter range that satisfies all current weak-field tests. We find that within this range it leads to lower maximum neutron star masses, as well as larger surface redshifts at a particular mass, for a given nuclear equation of state. For non-rotating black holes and neutron stars, the innermost stable circular orbit is only slightly modified in this theory.

Christopher Eling; Ted Jacobson; M. Coleman Miller

2007-05-10T23:59:59.000Z

150

Vortex molecules in Bose-Einstein condensates  

E-Print Network (OSTI)

Stable vortex dimers are known to exist in coherently coupled two component Bose-Einstein condensates (BECs). We construct stable vortex trimers in three component BECs and find that the shape can be controlled by changing the internal coherent (Rabi) couplings. Stable vortex N-omers are also constructed in coherently coupled N-component BECs. We classify all possible N-omers in terms of the mathematical graph theory. Next, we study effects of the Rabi coupling in vortex lattices in two-component BECs. We find how the vortex lattices without the Rabi coupling known before are connected to the Abrikosov lattice of integer vortices with increasing the Rabi coupling. In this process, vortex dimers change their partners in various ways at large couplings. We then find that the Abrikosov lattices are robust in three-component BECs.

Muneto Nitta; Minoru Eto; Mattia Cipriani

2013-07-16T23:59:59.000Z

151

Explain cosmic acceleration? First, correct Einstein  

E-Print Network (OSTI)

In creating his gravitational field equations Einstein unjustifiedly assumed that inertial mass, and its energy equivalent, is a source of gravity. Denying this assumption allows modifying the field equations to a form in which a positive cosmological constant appears as a uniform density of gravitationally repulsive matter. This repulsive matter is identified as the back sides of the 'drainholes' (called by some 'traversable wormholes') introduced by the author in 1973, which attract on the high, front sides and repel more strongly on the low, back sides. The field equations with a scalar field added produce cosmological models that 'bounce' off a positive minimum of the scale factor and accelerate throughout history. The 'dark drainholes' that radiate nothing visible are hypothesized to constitute the 'dark matter' inferred from observation, their excess of negative active mass over positive active mass driving the accelerating expansion. For a universe with spatial curvature zero, and the ratio of scale fa...

Ellis, H G

2006-01-01T23:59:59.000Z

152

Energy in the Einstein-Aether Theory  

E-Print Network (OSTI)

We investigate the energy of a theory with a unit vector field (the "aether") coupled to gravity. Both the Weinberg and Einstein type energy-momentum pseudotensors are employed. In the linearized theory we find expressions for the energy density of the 5 wave modes. The requirement that the modes have positive energy is then used to constrain the theory. In the fully non-linear theory we compute the total energy of an asymptotically flat spacetime. The resulting energy expression is modified by the presence of the aether due to the non-zero value of the unit vector at infinity and its 1/r falloff. The question of non-linear energy positivity is also discussed, but not resolved.

Christopher Eling

2009-12-06T23:59:59.000Z

153

Der Briefwechsel zwischen Sidonie Na?dherny? und Albert Bloch : September 1947-September 1950 : mit einer Einfu?hrung in die Widmungsgedichte von Karl Kraus an Sidonie Na?dherny?  

E-Print Network (OSTI)

Die Aufgabe dieser Arbeit besteht darin, Sidonie Na?dherny? Einflu auf das Werk von Karl Kraus, vor allem auf seine Lyrik, an Hand der Albert Bloch/Sidonie Na?dherny?-Korrespondenz auszuwerten. Neben den eigentlichen ...

Champion, Elke Lorenz

1998-01-01T23:59:59.000Z

154

Chaoticity and Coherence in Bose-Einstein Condensation and Correlations  

E-Print Network (OSTI)

We review the properties of chaoticity and coherence in Bose-Einstein condensation and correlations, for a dense boson system in its mean-field represented approximately by a harmonic oscillator potential. The order parameter and the nature of the phase transition from the chaotic to the condensate states are studied for different fixed numbers of bosons. The two-particle correlation function in momentum space is calculated to investigate how the Bose-Einstein correlation depends on the degree of condensation and other momentum variables. We generalize the Bose-Einstein correlation analysis to three-particle correlations to show its dependence on the degree of condensation.

Cheuk-Yin Wong; Wei-Ning Zhang; Jie Liu; Peng Ru

2015-01-23T23:59:59.000Z

155

Thermodynamics of Spacetime: The Einstein Equation of State  

Science Journals Connector (OSTI)

The Einstein equation is derived from the proportionality of entropy and the horizon area together with the fundamental relation ?Q=T dS. The key idea is to demand that this relation hold for all the local Rindler causal horizons through each spacetime point, with ?Q and T interpreted as the energy flux and Unruh temperature seen by an accelerated observer just inside the horizon. This requires that gravitational lensing by matter energy distorts the causal structure of spacetime so that the Einstein equation holds. Viewed in this way, the Einstein equation is an equation of state.

Ted Jacobson

1995-08-14T23:59:59.000Z

156

Effects of interaction in Bose-Einstein condensates  

E-Print Network (OSTI)

This thesis discusses a series of studies that investigate the effects of interaction - essentially the s-wave scattering - in the various properties of Bose-Einstein condensates (BEC). The phonon wavefunction in a BEC was ...

Xu, Kaiwen

2006-01-01T23:59:59.000Z

157

Classical geometric resolution of the EinsteinPodolskyRosen paradox  

Science Journals Connector (OSTI)

...mechanics as implying that "God plays dice"- or better...Nonrelativistic single- particle quantum mechanics is an approximation...in separating out a single particle. Einstein considered separability...the na- ture of the single-particle approximation (separability...

Yuval Ne'eman

1983-01-01T23:59:59.000Z

158

Insuperable difficulties: Einstein's statistical road to molecular physics  

E-Print Network (OSTI)

for History and Foundations of Science, Utrecht University, PO Box 80.000, 3508 TA Utrecht, the Netherlands­1904. In these papers, Einstein developed the foundations of a theoretical program that he applied to concrete problems

Seevinck, Michiel

159

Bose-Einstein condensation in the Rindler space-time  

E-Print Network (OSTI)

We analyze the critical acceleration of the Bose-Einstein condensation induced by the Unruh effect in a complex scalar field at the finite density in the Rindler space-time.

Takeuchi, Shingo

2015-01-01T23:59:59.000Z

160

Realization of Bose-Einstein condensation with Lithium-7 atoms  

E-Print Network (OSTI)

This thesis presents our work on developing and improving the techniques of trapping and cooling an ultra-cold cloud of Lithium-7 atoms and the realization of the Bose- Einstein condensate as a first step to study quantum ...

Yu, Yichao

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "albert einstein distinguished" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

ccsd00000553 L'ARGUMENT EINSTEIN PODOLSKY ROSEN (EPR)  

E-Print Network (OSTI)

ccsd­00000553 (version 1) : 29 Aug 2003 L'ARGUMENT EINSTEIN PODOLSKY ROSEN (EPR) : PARADOXE'article EPR (A. Einstein, B. Podolsky, N. Rosen, #19;ecrit en 1935), qui est #18;a l'origine de l'aujourd'hui, est analys#19;e. Avec Schrodinger, Bohr, Wigner et jusqu'#18;a aujourd'hui, la r#19;eponse #18;a EPR

162

E-Print Network 3.0 - alpha folate receptor-expressing Sample...  

NLE Websites -- All DOE Office Websites (Extended Search)

Albert Einstein College of Medicine, Yeshiva University Collection: Biology and Medicine 4 Nanotechnology & Nanobiotechnology Summary: through nanotechnology b....

163

E-Print Network 3.0 - avian leukosis Sample Search Results  

NLE Websites -- All DOE Office Websites (Extended Search)

subgroups of avian leukosis vi- ... Source: Brojatsch, Jrgen - Department of Microbiology and Immunology, Albert Einstein College of Medicine, Yeshiva University...

164

E-Print Network 3.0 - analysis distinguishes phases Sample Search...  

NLE Websites -- All DOE Office Websites (Extended Search)

Materials... . David Joy Distinguished Professor Department of Materials Science and Engineering The University... reliably measure its size, and the use of light ion beams...

165

Foundations of physics (New York) 25, 1995, n1 (january), 183-204. The nature of Einstein's objections  

E-Print Network (OSTI)

(condensed matter, atomic, nuclear and particle physics) seem to admit that in the Einstein-Bohr dialogue Einstein late saying in 1944 that, contrary to Born believing in a God playing dices, he (Einstein) tried

Paris-Sud XI, Université de

166

Dark energy and dark matter from Bose-Einstein condensate  

E-Print Network (OSTI)

We propose that gravitons with a very small mass (but consistent with experiments) may form a Bose-Einstein condensate, with its macroscopic wave function spanning the universe and producing a quantum potential. The latter's contribution to the cosmological constant accounts for the observed dark energy content and the accelerated expansion of our universe. Further, the density of the Bose-Einstein condensed gravitons in the lowest zero momentum state accounts for its cold dark matter content. In the far future this condensate is all that remains of our universe.

Das, Saurya

2014-01-01T23:59:59.000Z

167

Dark energy and dark matter from Bose-Einstein condensate  

E-Print Network (OSTI)

We propose that gravitons with a very small mass (but consistent with experiments) may form a Bose-Einstein condensate, with its macroscopic wave function spanning the universe and producing a quantum potential. The latter's contribution to the cosmological constant accounts for the observed dark energy content and the accelerated expansion of our universe. Further, the density of the Bose-Einstein condensed gravitons in the lowest zero momentum state accounts for its cold dark matter content. In the far future this condensate is all that remains of our universe.

Saurya Das; Rajat K. Bhaduri

2014-11-04T23:59:59.000Z

168

EXPLAIN COSMIC ACCELERATION? FIRST, CORRECT EINSTEIN HOMER G. ELLIS  

E-Print Network (OSTI)

. Keywords: Cosmic acceleration; dark matter/energy; in ation. Cosmologists are perplexed by the discovery matter into galaxies and galactic clusters and superclusters, an even more mysterious `dark energy this dark energy by Einstein's cosmological constant #3;, attributing its source to a negative pressure

Ellis, Homer

169

The universal Einstein radius distribution from 10 000 SDSS clusters  

Science Journals Connector (OSTI)

......power-law index, q (which is set to constant throughout...our methods success in locating multiple images, and is...results in a realistic domination of galaxy-scale lenses...towards larger Einstein radii sets in. No weight should therefore......

Adi Zitrin; Tom Broadhurst; Matthias Bartelmann; Yoel Rephaeli; Masamune Oguri; Narciso Bentez; Jiangang Hao; Keiichi Umetsu

2012-07-01T23:59:59.000Z

170

Vortex trimer in three-component Bose-Einstein condensates  

E-Print Network (OSTI)

Vortex trimer is predicted in three-component Bose-Einstein condensates with internal coherent couplings. The molecule is made by three constituent vortices which are bounded by domain walls of the relative phases. We show that the shape and the size of the molecule can be controlled by changing the internal coherent couplings.

Minoru Eto; Muneto Nitta

2012-01-01T23:59:59.000Z

171

Can dark matter be a Bose-Einstein condensate?  

E-Print Network (OSTI)

We consider the possibility that the dark matter, which is required to explain the dynamics of the neutral hydrogen clouds at large distances from the galactic center, could be in the form of a Bose-Einstein condensate. To study the condensate we use the non-relativistic Gross-Pitaevskii equation. By introducing the Madelung representation of the wave function, we formulate the dynamics of the system in terms of the continuity equation and of the hydrodynamic Euler equations. Hence dark matter can be described as a non-relativistic, Newtonian Bose-Einstein gravitational condensate gas, whose density and pressure are related by a barotropic equation of state. In the case of a condensate with quartic non-linearity, the equation of state is polytropic with index $n=1$. To test the validity of the model we fit the Newtonian tangential velocity equation of the model with a sample of rotation curves of low surface brightness and dwarf galaxies, respectively. We find a very good agreement between the theoretical rotation curves and the observational data for the low surface brightness galaxies. The deflection of photons passing through the dark matter halos is also analyzed, and the bending angle of light is computed. The bending angle obtained for the Bose-Einstein condensate is larger than that predicted by standard general relativistic and dark matter models. Therefore the study of the light deflection by galaxies and the gravitational lensing could discriminate between the Bose-Einstein condensate dark matter model and other dark matter models.

C. G. Boehmer; T. Harko

2007-06-21T23:59:59.000Z

172

Kinematical Hilbert Space for Einstein-Cartan Theory  

E-Print Network (OSTI)

Kinematical Hilbert space for Einstein-Cartan theory is constructed via von Neumann ideas of infinity-dimensional tensor product of Hilbert spaces. Field of comframe is considered as basic variable what is in contrast with standard euclidean LQG which is build by Wilson loops of Ashtekar-Barbero-Immirzi connection.

Marin Pilc

2013-12-01T23:59:59.000Z

173

Kinematical Hilbert Space for Einstein-Cartan Theory  

E-Print Network (OSTI)

Kinematical Hilbert space for Einstein-Cartan theory is constructed via von Neumann ideas of infinity-dimensional tensor product of Hilbert spaces. Field of comframe is taken as basic variables what is in contrast with standard LQG where Wilson loops of Ashtekar-Barbero-Immirzi are taken.

Pilc, Marin

2013-01-01T23:59:59.000Z

174

Hamilton-Jacobi Counterterms for Einstein-Gauss-Bonnet Gravity  

E-Print Network (OSTI)

The on-shell gravitational action and the boundary stress tensor are essential ingredients in the study of black hole thermodynamics. We employ the Hamilton-Jacobi method to calculate the boundary counterterms necessary to remove the divergences and allow the study of the thermodynamics of Einstein-Gauss-Bonnet black holes.

James T. Liu; Wafic A. Sabra

2008-07-08T23:59:59.000Z

175

No Open or Flat Bouncing Cosmologies in Einstein Gravity  

E-Print Network (OSTI)

We show that bouncing open or flat Friedmann-Robertson-Walker cosmologies are inconsistent with worldsheet string theory to first approximation. Specifically, the Virasoro constraint translates to the null energy condition in spacetime at leading order in the alpha-prime expansion. Thus one must go beyond minimally-coupled Einstein gravity in order to find bounce solutions.

Parikh, Maulik K

2015-01-01T23:59:59.000Z

176

The train/embankment thought experiment, Einstein's second postulate of special relativity and relativity of simultaneity  

E-Print Network (OSTI)

The relativistic time dilatation effect and Einstein's second postulate of special relativity are used to analyse train/embankment thought expriments, both Einstein's original one, and an extension where observers on two trains moving at different speeds, as well as on the embankment, are considered. Whereas the relativistic analysis of Einstein's experiment shows, in contradiction to Einstein's interpretation, no `relativity of simultaneity' effect, the latter is apparent for certain events in the two-train experiment. The importance of relativistic kinematics --embodied for photons in Einstein's second postulate-- for the correct interpretation of the experiments is pointed out and demonstrated by detailed calculation of a related example.

J. H. Field

2009-01-09T23:59:59.000Z

177

EPR before EPR: a 1930 Einstein-Bohr thought experiment revisited  

E-Print Network (OSTI)

In 1930 Einstein argued against consistency of the time-energy uncertainty relation by discussing a thought experiment involving a measurement of mass of the box which emitted a photon. Bohr seemingly triumphed over Einstein by arguing that the Einstein's own general theory of relativity saves the consistency of quantum mechanics. We revisit this thought experiment from a modern point of view at a level suitable for undergraduate readership and find that neither Einstein nor Bohr was right. Instead, this thought experiment should be thought of as an early example of a system demonstrating nonlocal "EPR" quantum correlations, five years before the famous Einstein-Podolsky-Rosen paper.

H. Nikolic

2012-03-06T23:59:59.000Z

178

Can we distinguish Richards' and Boussinesq's equations for hillslopes?: The Coweeta experiment revisited  

E-Print Network (OSTI)

Can we distinguish Richards' and Boussinesq's equations for hillslopes?: The Coweeta experiment. Surprisingly, whether the starting point is Richards' or Boussinesq's equation, the derived analytical the Coweeta Hydrological Laboratory [Hewlett and Hibbert, 1963]. We show that Boussinesq's model can

Walter, M.Todd

179

Frontal brain electrical activity (EEG) distinguishes valence and intensity of musical emotions  

E-Print Network (OSTI)

Frontal brain electrical activity (EEG) distinguishes valence and intensity of musical emotions (i.e., positive vs. negative) and intensity (i.e., intense vs. calm) in a group of under- graduates

Trainor, Laurel J.

180

Distinguishability analysis of controller parameters with applications to DFIG based wind turbine  

Science Journals Connector (OSTI)

The power system controllers normally have more than one parameter. The distinguishability analysis of the controller parameters is to identify whether the optimal set of the parameters of the controllers is uniq...

Chuan Qin; Ping Ju; Feng Wu; Lei Liu

2013-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "albert einstein distinguished" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

E-Print Network 3.0 - allozyme markers distinguishing Sample...  

NLE Websites -- All DOE Office Websites (Extended Search)

results for: allozyme markers distinguishing Page: << < 1 2 3 4 5 > >> 1 Molecular Ecology (2003) 12, 25052510 doi: 10.1046j.1365-294X.2003.01936.x 2003 Blackwell Publishing...

182

MICHAEL L. CORRADINI Wisconsin Distinguished Professor Nuclear Engineering and Engineering Physics, Chair, Engineering Physics Department  

E-Print Network (OSTI)

MICHAEL L. CORRADINI Wisconsin Distinguished Professor Nuclear Engineering and Engineering Physics.S. Mechanical Engineering - 1975 Marquette University, Milwaukee WI M.S. Nuclear Engineering - 1976 Massachusetts Institute of Technology PhD Nuclear Engineering - 1978 Massachusetts Institute of Technology

Volpe, Francesco

183

Arden L. Bement Jr. David A. Ross Distinguished Professor Emeritus of Nuclear Engineering,  

E-Print Network (OSTI)

of Nuclear Engineering, Chief Global Affairs Officer Emeritus and Inaugural Director Emeritus, Global Policy Research Institute Department: Nuclear Engineering Office was the David A. Ross Distinguished Professor of Nuclear Engineering and head

Pittendrigh, Barry

184

Dual-channel audio monitor for distinguishing action potentials from two different sources  

Science Journals Connector (OSTI)

An audio-monitor design is described which allows action potentials from two different input channels to be heard and distinguished from each other. Two other more conventional modes of operation have also bee...

Andrew D. McClellan; Christopher S. Cohan

1978-03-01T23:59:59.000Z

185

Polymerase chain reaction and synthetic DNA probes: a means of distinguishing the causative agents of syphilis and yaws?  

Science Journals Connector (OSTI)

...Polymerase chain reaction and synthetic DNA probes: a means of distinguishing...Bilthoven, The Netherlands. Synthetic DNA probes specific for either the...Polymerase chain reaction and synthetic DNA probes: a means of distinguishing...

G T Noordhoek; B Wieles; J J van der Sluis; J D van Embden

1990-06-01T23:59:59.000Z

186

Distillation of Bose-Einstein condensates in a double-well potential The characteristic feature of Bose-Einstein condensation is the accumulation of a  

E-Print Network (OSTI)

Distillation of Bose-Einstein condensates in a double-well potential The characteristic feature by preparing a Bose-Einstein condensate in an optical dipole trap and distilling it into a second empty dipole trap adjacent to the first one [2]. The distillation was driven by thermal atoms spilling over

187

Einstein-Schrodinger theory using Newman-Penrose tetrad formalism  

E-Print Network (OSTI)

The Einstein-Schrodinger theory is modified to include a large cosmological constant caused by zero-point fluctuations. This ``extrinsic'' cosmological constant which multiplies the symmetric metric is assumed to be nearly cancelled by Schrodinger's ``bare'' cosmological constant which multiplies the nonsymmetric fundamental tensor, such that the total cosmological constant is consistent with measurement. This modified Einstein-Schrodinger theory is expressed in Newman-Penrose form, and tetrad methods are used to confirm that it closely approximates ordinary general relativity and electromagnetism. A solution for the connections in terms of the fundamental tensor is derived in the tetrad frame. The tetrad form of an exact electric monopole solution is shown to approximate the Reissner-Nordstrom solution and to be of Petrov type-D.

J. A. Shifflett

2004-03-15T23:59:59.000Z

188

Stability of AdS in Einstein Gauss Bonnet Gravity  

E-Print Network (OSTI)

Recently it has been argued that in Einstein gravity Anti-de Sitter spacetime is unstable against the formation of black holes for a large class of arbitrarily small perturbations. We examine the effects of including a Gauss-Bonnet term. In five dimensions, spherically symmetric Einstein-Gauss-Bonnet gravity has two key features: Choptuik scaling exhibits a radius gap, and the mass function goes to a finite value as the horizon radius vanishes. These suggest that black holes will not form dynamically if the total mass/energy content of the space-time is too small, thereby restoring the stability of AdS spacetime. We support this claim with numerical simulations and uncover a rich structure in horizon radii and formation times as a function of perturbation amplitude.

Deppe, Nils; Frey, Andrew; Kunstatter, Gabor

2014-01-01T23:59:59.000Z

189

Generalized Einstein Relation in an aging colloidal glass  

E-Print Network (OSTI)

We present an experimental and theoretical investigation of the Generalized Einstein Relation (GER), a particular form of a fluctuation-dissipation relation, in an out-of-equilibrium visco-elastic fluid. Micrometer beads, used as thermometers, are immersed in an aging colloidal glass to provide both fluctuation and dissipation measurements. The deviations from the Generalized Einstein Relation are derived as a function of frequency and aging time. The observed deviations from GER are interpreted as directly related to the change in the glass relaxation times with aging time. In our scenario, deviations are observed in the regime where the observation time scale is of the order of a characteristic relaxation time of the glass.

Brengre Abou; Franois Gallet; Pascal Monceau; Nolle Pottier

2006-05-04T23:59:59.000Z

190

Bose-Einstein Condensate in a Random Potential  

SciTech Connect

An optical speckle potential is used to investigate the static and dynamic properties of a Bose-Einstein condensate in the presence of disorder. With small levels of disorder, stripes are observed in the expanded density profile and strong damping of dipole and quadrupole oscillations is seen. Uncorrelated frequency shifts of the two modes are measured and are explained using a sum-rules approach and by the numerical solution of the Gross-Pitaevskii equation.

Lye, J.E.; Fallani, L.; Fort, C.; Inguscio, M. [LENS, Dipartimento di Fisica, and INFM Universita di Firenze, via Nello Carrara 1, I-50019 Sesto Fiorentino, FI (Italy); Modugno, M. [LENS, Dipartimento di Fisica, and INFM Universita di Firenze, via Nello Carrara 1, I-50019 Sesto Fiorentino, FI (Italy); BEC-INFM Center, Universita di Trento, I-38050 Povo, TN (Italy); Wiersma, D.S. [LENS, Dipartimento di Fisica, and INFM Universita di Firenze, via Nello Carrara 1, I-50019 Sesto Fiorentino, FI (Italy); INFM-MATIS, Catania (Italy)

2005-08-12T23:59:59.000Z

191

Taming rogue waves in vector Bose-Einstein condensates  

Science Journals Connector (OSTI)

Using gauge transformation method, we generate rogue waves for the two-component Bose-Einstein condensates (BECs) governed by the symmetric coupled Gross-Pitaevskii (GP) equations and study their dynamics. We also suggest a mechanism to tame the rogue waves either by manipulating the scattering length through Feshbach resonance or the trapping frequency, a phenomenon not witnessed in the domain of BECs, and we believe that these results may have wider ramifications in the management of rogons.

P. S. Vinayagam; R. Radha; K. Porsezian

2013-10-11T23:59:59.000Z

192

Numerical simulations of gravitational collapse in Einstein-aether theory  

E-Print Network (OSTI)

We study gravitational collapse of a spherically symmetric scalar field in Einstein-aether theory (general relativity coupled to a dynamical unit timelike vector field). The initial value formulation is developed, and numerical simulations are performed. The collapse produces regular, stationary black holes, as long as the aether coupling constants are not too large. For larger couplings a finite area singularity occurs. These results are shown to be consistent with the stationary solutions found previously.

David Garfinkle; Christopher Eling; Ted Jacobson

2007-07-01T23:59:59.000Z

193

Initial data for Einstein's equations with superposed gravitational waves  

E-Print Network (OSTI)

A method is presented to construct initial data for Einstein's equations as a superposition of a gravitational wave perturbation on an arbitrary stationary background spacetime. The method combines the conformal thin sandwich formalism with linear gravitational waves, and allows detailed control over characteristics of the superposed gravitational wave like shape, location and propagation direction. It is furthermore fully covariant with respect to spatial coordinate changes and allows for very large amplitude of the gravitational wave.

Harald P. Pfeiffer; Lawrence E. Kidder; Mark A. Scheel; Deirdre Shoemaker

2005-02-22T23:59:59.000Z

194

Women @ Energy: Flicie Albert  

Energy.gov (U.S. Department of Energy (DOE))

"... I do something unique, and that every day I learn something new and different. I do experiments using intense lasers, including the National Ignition Facility, the biggest laser in the world. I work with a lot of talented people on challenging problems. When you work really hard on designing an experiment, the excitement when you get your first data and see that it works is an amazing feeling."

195

Distinguished Thermodynamics  

Science Journals Connector (OSTI)

... THAT a third edition of Prof. E. A. Guggenheim's "Thermodynamics" has appeared barely eight years after publication of the first edition is proof that ... rate, to more familiar physical quantities.

N. K. ADAM

1957-10-05T23:59:59.000Z

196

Portable radiation-detection instruments for distinguishing nuclear from non-nuclear munitions  

SciTech Connect

The emission of gamma rays and fast neutrons by nuclear materials provides a simple means for distinguishing between real nuclear munitions and other assemblies that are non-nuclear, such as nuclear-explosive-like test assemblies (NELAs) and conventional munitions. The presence or absence of significant numbers of neutrons and characteristic plutonium gamma rays are distinguishing attributes for plutonium munitions. The presence of energetic gamma rays from {sup 232}U daughters, if present in sufficient number, is a distinguishing attribute for highly enriched uranium munitions. Some portable instruments are being developed for verifying that munitions are or are not nuclear, and others are already commercially available. The commercial ones have been evaluated for pre-flight non-nuclear verification of NELAs in Air Force flight tests. 7 refs., 5 figs.

Fehlau, P.E.

1991-01-01T23:59:59.000Z

197

Application of Monodromy Transform Method to Solution of Einstein - Maxwell Equations with Isometries  

E-Print Network (OSTI)

Applications of the monodromy transform approach to construction of exact solutions of electrovacuum Einstein - Maxwell field equations are considered. Examples of new solutions are given.

G. A. Alekseev

2014-11-13T23:59:59.000Z

198

Subcritical temperature in Bose-Einstein condensates of chiral molecules  

E-Print Network (OSTI)

Bose-Einstein condensation of a sample of non-interacting chiral molecules leads to a non zero optical activity of the condensate and also to a subcritical temperature in the heat capacity. This is due to the internal structure of the molecule which, in our model, is considered as a simple two-state system, characterized by tunneling and parity violation. The predicted singular behavior found for the specific heat, below the condensation temperature, sheds some light on the existence of the so far elusive parity violation energy difference between enantiomers.

Pedro Bargueno; Ricardo Perez de Tudela; Salvador Miret-Artes; Isabel Gonzalo

2010-04-21T23:59:59.000Z

199

Special Killing forms on toric Sasaki-Einstein manifolds  

E-Print Network (OSTI)

In this paper we study the interplay between complex coordinates on the Calabi-Yau metric cone and the special Killing forms on the toric Sasaki-Einstein manifold. In the general case we give a procedure to locally construct the special Killing forms. In the final part we exemplify the general scheme in the case of the $5-$dimensional $Y^{p,q}$ spaces, identifying the additional special Killing 2-forms which were previously obtained by the second author of the present paper, but with a different method, in [Mod. Phys. Lett. A 27 (2012) 1250217].

Vladimir Slesar; Mihai Visinescu; Gabriel Eduard Vilcu

2014-03-05T23:59:59.000Z

200

Quantum top inside a Bose-Einstein-condensate Josephson junction  

SciTech Connect

We consider an atomic quantum dot confined between two weakly coupled Bose-Einstein condensates, where the dot serves as an additional tunneling channel. It is shown that the thus-embedded atomic quantum dot is a pseudospin subject to an external torque, and therefore equivalent to a quantum top. We demonstrate by numerical analysis of the time-dependent coupled evolution equations that this microscopic quantum top is very sensitive to any deviation from linear oscillatory behavior of the condensates. For sufficiently strong dot-condensate coupling, the atomic quantum dot can induce or modify the tunneling between the macroscopic condensates in the two wells.

Bausmerth, Ingrid; Posazhennikova, Anna [Institut fuer Theoretische Festkoerperphysik, Universitaet Karlsruhe, D-76128 Karlsruhe (Germany); Fischer, Uwe R. [Institut fuer Theoretische Physik, Eberhard-Karls-Universitaet Tuebingen, Auf der Morgenstelle 14, D-72076 Tuebingen (Germany)

2007-05-15T23:59:59.000Z

Note: This page contains sample records for the topic "albert einstein distinguished" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

On isotropic metric of Schwarzschild solution of Einstein equation  

E-Print Network (OSTI)

The known static isotropic metric of Schwarzschild solution of Einstein equation cannot cover with the range of r<2MG, a new isotropic metric of Schwarzschild solution is obtained. The new isotropic metric has the characters: (1) It is dynamic and periodic. (2) It has infinite singularities of the spacetime. (3) It cannot cover with the range of 0

T. Mei

2006-10-24T23:59:59.000Z

202

228 OPTRONICS 2008 No.1 Bose-Einstein condensation  

E-Print Network (OSTI)

228 OPTRONICS 2008 No.1 1980 1 1995 Bose-Einstein condensation BEC 1 BEC 10 6 2 BEC light. Wieman W. Ketterle 3 #12;OPTRONICS 2008 No.1 229 1W 1/ h (1/h) hk =1/c3.3 10 -9 N 2 2 +q(q>0) -q p E B (1 (a b)=(a )b+(b )a+a ( b)+b( a) 4 #12;230 OPTRONICS 2008 No.1 (4) 3 1 1 2 E p U=-p E/2 5 5 (6) 4 1

Torii, Yoshio

203

On Einstein-Cartan Theory: I. Kinematical description  

E-Print Network (OSTI)

Equations of motion for general gravitational connection and orthonormal coframe from the Einstein-Hilbert type action are derived. Additional gauge freedom is geometrically interpreted. Our formulation does not fix coframe to be tangential to spatial section hence Lorentz group is still present as a part of gauge freedom. 3+1 decomposition introduces tangent Minkowski structures hence Hamilton-Dirac approach to dynamics works with Lorentz connection over the spatial section. The second class constraints are analyzed and Dirac bracket is defined. Reduction of the phase space is performed and canonical coordinates are introduced.

Pilc, Marin

2013-01-01T23:59:59.000Z

204

On Einstein-Cartan Theory: I. Kinematical description  

E-Print Network (OSTI)

Equations of motion for general gravitational connection and orthonormal coframe from the Einstein-Hilbert type action are derived. Our formulation does not fix coframe to be tangential to spatial section hence Lorentz group is still present as a part of gauge freedom. 3+1 decomposition introduces tangent Minkowski structures hence Hamilton-Dirac approach to dynamics works with Lorentz connection over the spatial section. The second class constraints are analyzed and Dirac bracket is defined. Reduction of the phase space is performed and canonical coordinates are introduced.

Marin Pilc

2013-11-28T23:59:59.000Z

205

Anisotropic Einstein data with isotropic nonnegative scalar curvature  

E-Print Network (OSTI)

We construct a black hole initial data for the Einstein equations with prescribed scalar curvature, or more precisely a piece of initial data contained inside the black hole. The constraints translate into a parabolic equation, with radius as "time" variable, on a metric component u that undergoes blow up. The metric itself is regular up to and including the surface at blow up radius, which is a minimal surface. By applying equivariant bifurcation theory on a self similarly rescaled equation, we show the existence of blow up profiles that are not O(3) symmetric - or anisotropic - although the curvature was isotropically prescribed.

Bernold Fiedler; Juliette Hell; Brian Smith

2012-07-09T23:59:59.000Z

206

Space-Time Curvature Signatures in Bose-Einstein Condensates  

E-Print Network (OSTI)

We derive a generalized Gross-Pitaevski (GP) equation immersed on a electromagnetic and a weak gravitational field starting from the covariant Complex Klein-Gordon field in a curved space-time. We compare it with the GP equation where the gravitational field is added by hand as an external potential. We show that there is a small difference of order $g z/c^2$ between them that could be measured in the future using Bose-Einstein Condensates (BEC). This represents the next order correction to the Newtonian gravity in a curved space-time.

Matos, Tonatiuh

2015-01-01T23:59:59.000Z

207

Distinguishing indirect signatures of new physics at the NLC: Z? versus R-parity violation  

Science Journals Connector (OSTI)

R-parity violation and extensions of the standard model gauge structure offer two nonminimal realizations of supersymmetry at low energies that can lead to similar new physics signatures at existing and future colliders. We discuss techniques that can be employed at the NLC below direct production threshold to distinguish these two new physics scenarios.

Thomas G. Rizzo

1999-04-16T23:59:59.000Z

208

TEXAS A&M AGRILIFE TEXAS A&M DISTINGUISHED TEXAN IN AGRICULTURE AWARD  

E-Print Network (OSTI)

TEXAS A&M AGRILIFE TEXAS A&M DISTINGUISHED TEXAN IN AGRICULTURE AWARD The agricultural teaching a proud history of training leaders and providing leadership for the agricultural industry for the agricultural community. It is, therefore, fitting to recognize the efforts of Texans who have gained unique

209

Distinguishing protein-coding and noncoding genes in the human genome  

E-Print Network (OSTI)

) Although the Human Genome Project was completed 4 years ago, the catalog of human protein-coding genesDistinguishing protein-coding and noncoding genes in the human genome Michele Clamp* , Ben Fry An accurate catalog of the protein-coding genes encoded in the human genome is fundamental to the study

Kellis, Manolis

210

Dichotic Pitch: A new stimulus distinguishes normal and dyslexic auditory function  

E-Print Network (OSTI)

Dichotic Pitch: A new stimulus distinguishes normal and dyslexic auditory function Robert F pitch detection in dyslexia Corresponding author: Deborah E. Giaschi Department of Ophthalmology, room A acoustic white noise can be binaurally fused by the human auditory system to extract pitch and location

Dougherty, Bob

211

White-etching matter in bearing steel Part 2: Distinguishing cause and eect in bearing steel  

E-Print Network (OSTI)

White-etching matter in bearing steel Part 2: Distinguishing cause and eect in bearing steel through a mechanism called "white-structure flaking", has triggered many studies of microstructural damage associated with "white-etching ar- eas" created during rolling contact fatigue, although whether

Cambridge, University of

212

Using Multiple Beams to Distinguish Radio Frequency Interference from SETI Signals  

E-Print Network (OSTI)

Using Multiple Beams to Distinguish Radio Frequency Interference from SETI Signals G. R. Harp Allen for extra-terrestrial intelligence) observations. It is a multi-beam instrument, with 16 independently steerable dual- polarization beams at 4 different tunings. Given 4 beams at one tuning, it is possible

Ellingson, Steven W.

213

Fine scale structural variants distinguish the genomes of Drosophilia melanogaster and D. pseudoobscura  

E-Print Network (OSTI)

RESEARCH Open Access Fine scale structural variants distinguish the genomes of Drosophila melanogaster and D. pseudoobscura Stuart J Macdonald* and Anthony D Long Abstract Background: A primary objective of comparative genomics is to identify... genomic elements of functional significance that contribute to phenotypic diversity. Complex changes in genome structure (insertions, duplications, rearrangements, translocations) may be widespread, and have important effects on organismal diversity. Any...

Macdonald, Stuart J.

2006-07-07T23:59:59.000Z

214

Third Announcement Relativity and Gravitation 100 Years after Einstein in Prague  

E-Print Network (OSTI)

of Physics, University of Utah, Salt Lake City ) Canonical quantum gravity: Einstein's posthumous anathema and historical issues The meeting is organized under the auspices of the Rector of Charles University relativity: Kepler, Mach and Einstein · Jií Bicák (Institute of Theoretical Physics, Charles University

Cerveny, Vlastislav

215

Bose-Einstein Condensation in Atomic Gases Jerzy Zachorowski and Wojciech Gawlik  

E-Print Network (OSTI)

. It is instructive to compare orders of magnitude typical for the thermal and condensed gas samples. For atom gasBose-Einstein Condensation in Atomic Gases Jerzy Zachorowski and Wojciech Gawlik M. Smoluchowski on the Bose-Einstein condensate. We also present main parameters and expected characteristics of the first Pol

216

Interferometry with independent Bose-Einstein condensates: parity as an EPR/Bell quantum variable  

E-Print Network (OSTI)

Interferometry with independent Bose-Einstein condensates: parity as an EPR/Bell quantum variable F arrangements. PACS numbers: 03.65.Ud, 03.75.Gg, 42.50.Xa The original Einstein-Podolsky-Rosen (EPR) argument [1 called "orthodox"), the notion of reality introduced by EPR is inappropriate. Later, Bell extended

Paris-Sud XI, Université de

217

Can dark matter be a Bose-Einstein condensate?  

E-Print Network (OSTI)

We consider the possibility that the dark matter, which is required to explain the dynamics of the neutral hydrogen clouds at large distances from the galactic center, could be in the form of a Bose-Einstein condensate. To study the condensate we use the non-relativistic Gross-Pitaevskii equation. By introducing the Madelung representation of the wave function, we formulate the dynamics of the system in terms of the continuity equation and of the hydrodynamic Euler equations. Hence dark matter can be described as a non-relativistic, Newtonian Bose-Einstein gravitational condensate gas, whose density and pressure are related by a barotropic equation of state. In the case of a condensate with quartic non-linearity, the equation of state is polytropic with index $n=1$. To test the validity of the model we fit the Newtonian tangential velocity equation of the model with a sample of rotation curves of low surface brightness and dwarf galaxies, respectively. We find a very good agreement between the theoretical rot...

Boehmer, C G

2007-01-01T23:59:59.000Z

218

hal-00189827,version2-16Feb2008 EPR argument and Bell inequalities for Bose-Einstein spin  

E-Print Network (OSTI)

hal-00189827,version2-16Feb2008 EPR argument and Bell inequalities for Bose-Einstein spin transposition of the EPR (Einstein-Podolsky-Rosen) argument to macroscopic physical quantities. The purpose, the celebrated Einstein-Podolsky-Rosen (EPR) argument [2]. Both have had an enormous influence in the discipline

Paris-Sud XI, Université de

219

CEE Distinguished Lecture - Ashok Gadgil on "Innovating Technologies for  

NLE Websites -- All DOE Office Websites (Extended Search)

CEE Distinguished Lecture - Ashok Gadgil on "Innovating Technologies for CEE Distinguished Lecture - Ashok Gadgil on "Innovating Technologies for the Poorest Two Billion" Speaker(s): Ashok Gadgil Date: April 30, 2013 - 5:00pm - 6:00pm Location: Banatao Auditorium, Sutardja Dai Hall (UCB Campus) Seminar Host/Point of Contact: JoAnne Lambert Two recent technology innovations could improve the lives of tens - possibly hundreds - of millions of people among the poorest two billion on the planet. Both technologies have emerged in the last few years from focused, goal-driven research by teams of creative, hard-working researchers in the Gadgil laboratory and in the field. The first technology innovation is the Berkeley-Darfur Stove, which is an inexpensive, fuel-efficient biomass stove for use by displaced women and girls in Darfur, Sudan. The second innovation is Electrochemical Arsenic

220

Distinguishing GR and f(R) gravity with the gravitational lensing Minkowski Functionals  

E-Print Network (OSTI)

We explore the Minkowski Functionals of weak lensing convergence map to distinguish between f(R) gravity and the General Relativity (GR). The mock weak lensing convergence maps are constructed with a set of high-resolution simulations assuming different gravity models. It is shown that the lensing MFs of f(R) gravity can be considerably different from that of GR because of the environmentally dependent enhancement of structure formation. We also investigate the effect of lensing noise on our results, and find that it is likely to distinguish F5, F6 and GR gravity models with a galaxy survey of ~3000degree^2 and with a background source number density of n_g=30arcmin^(-2), comparable to an upcoming survey Dark Energy survey (DES).

Chenxiaoji, Ling; Ra, Li; Baojiu, Li; Jie, Wang; Liang, Gao

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "albert einstein distinguished" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Key Dates | U.S. DOE Office of Science (SC)  

Office of Science (SC) Website

Key Dates Key Dates Albert Einstein Distinguished Educator Fellowship (AEF) Program Einstein Fellowship Home Eligibility Benefits Obligations How to Apply Key Dates Frequently Asked Questions Contact WDTS Home Key Dates Print Text Size: A A A RSS Feeds FeedbackShare Page Key Dates for the 2014-2015 Einstein Fellowship Application process. On-line Application Opens September 24, 2013 Application Deadline 5:00pm EST December 4, 2013 Application Review 7-8 weeks Notification to Semi-Finalists [Travel Arrangements made for Interviews in Washington, DC] Late January 2014 Interviews in Washington, DC February 23-25, 2014 Finalists Notifications March 2014 Congressional Fellows Placement Interviews June - July 2014 Fellows Arrive in Washington, DC August 2014 Orientation meeting for the 2014-2015 Einstein Fellows

222

Fermilab | Science at Fermilab | Questions for the Universe | Einstein's  

NLE Websites -- All DOE Office Websites (Extended Search)

extra dimensions of space exist: extra dimensions of space exist: Large Hadron Collider, CERN, Switzerland, Geneva International Linear Collider (proposed) Further reading courtesy of Symmetry magazine Explain it in 60 Seconds: Extra dimensions Explain it in 60 Seconds: String Theory The Search for Extra Dimensions The Great String Debate Joe Lykken Joe Lykken, Fermilab physicist, discusses the exciting possibility of discovering extra dimensions in experiments that are being conducted at particle physics labs right now. View the Video Are there extra dimensions of space? The revolutionary concept of string theory is a bold realization of Einstein's dream of an ultimate explanation for everything from the tiniest quanta of particle physics to the cosmos itself. String theory unifies physics by producing all known forces and particles as different vibrations

223

Galilei covariance and Einstein's equivalence principle in quantum reference frames  

E-Print Network (OSTI)

The covariance of the Schr\\"odinger equation under Galilei boosts and the compatibility of nonrelativistic quantum mechanics with Einstein's equivalence principle have been constrained for so long to the existence of a superselection rule which would prevent a quantum particle to be found in superposition states of different masses. In a effort to avoid this expedient, thus allowing for nonrelativistic quantum mechanics to account for unstable particles, recent works have suggested that usual Galilean transformations are inconsistent with the nonrelativistic limit of the Lorentz transformation. Here we approach the issue in a fundamentally different way. Using a formalism of unitary transformations and employing quantum reference frames rather than immaterial coordinate systems, we show that the Schr\\"odinger equation, although form-variant, is fully compatible with the aforementioned principles of relativity.

S. T. Pereira; R. M. Angelo

2014-04-10T23:59:59.000Z

224

Optical computing with soliton trains in Bose-Einstein condensates  

E-Print Network (OSTI)

Optical computing devices can be implemented based on controlled generation of soliton trains in single and multicomponent Bose-Einstein condensates (BEC). Our concepts utilize the phenomenon that the frequency of soliton trains in BEC can be governed by changing interactions within the atom cloud. We use this property to store numbers in terms of those frequencies for a short time until observation. The properties of soliton trains can be changed in an intended way by other components of BEC occupying comparable states or via phase engineering. We elucidate in which sense such an additional degree of freedom can be regarded as a tool for controlled manipulation of data. Finally the outcome of any manipulation made is read out by observing the signature within the density profile.

Florian Pinsker

2014-11-18T23:59:59.000Z

225

Josephson Junction Arrays with Bose-Einstein Condensates  

E-Print Network (OSTI)

We report on the direct observation of an oscillating atomic current in a one-dimensional array of Josephson junctions realized with an atomic Bose-Einstein condensate. The array is created by a laser standing-wave, with the condensates trapped in the valleys of the periodic potential and weakly coupled by the inter-well barriers. The coherence of multiple tunneling between adjacent wells is continuously probed by atomic interference. The square of the small-amplitude oscillation frequency is proportional to the microscopic tunneling rate of each condensate through the barriers, and provides a direct measurement of the Josephson critical current as a function of the intermediate barrier heights. Our superfluid array may allow investigation of phenomena so far inaccessible to superconducting Josephson junctions and lays a bridge between the condensate dynamics and the physics of discrete nonlinear media.

F. S. Cataliotti; S. Burger; C. Fort; P. Maddaloni; F. Minardi; A. Trombettoni; A. Smerzi; M. Inguscio

2001-08-07T23:59:59.000Z

226

Geometric Phase in a Bose-Einstein Josephson Junction  

E-Print Network (OSTI)

We calculate the geometric phase associated with the time evolution of the wave function of a Bose-Einstein condensate system in a double-well trap by using a model for tunneling between the wells. For a cyclic evolution, this phase is shown to be half the solid angle subtended by the evolution of a unit vector whose z component and azimuthal angle are given by the population difference and phase difference between the two condensates. For a non-cyclic evolution an additional phase term arises. We show that the geometric phase can also be obtained by mapping the tunneling equations onto the equations os a space curve. The importance of a geometric phase in the context of some recent experiments is pointed out.

Radha Balakrishnan; Mitaxi Mehta

2003-07-04T23:59:59.000Z

227

Chiral Confinement in Quasirelativistic Bose-Einstein Condensates  

SciTech Connect

In the presence of a laser-induced spin-orbit coupling an interacting ultracold spinor Bose-Einstein condensate may acquire a quasirelativistic character described by a nonlinear Dirac-like equation. We show that as a result of the spin-orbit coupling and the nonlinearity the condensate may become self-trapped, resembling the so-called chiral confinement, previously studied in the context of the massive Thirring model. We first consider 1D geometries where the self-confined condensates present an intriguing sinusoidal dependence on the interparticle interactions. We further show that multidimensional chiral confinement is also possible under appropriate feasible laser arrangements, and discuss the properties of 2D and 3D condensates, which differ significantly from the 1D case.

Merkl, M.; Zimmer, F. E.; Oehberg, P. [SUPA, Department of Physics, Heriot-Watt University, Edinburgh, EH14 4AS (United Kingdom); Jacob, A.; Santos, L. [Institute for Theoretical Physics, Appelstrasse 2, Leibniz University, Hannover (Germany)

2010-02-19T23:59:59.000Z

228

Bose-Einstein condensation of atoms in a uniform potential  

E-Print Network (OSTI)

We have observed Bose-Einstein condensation of an atomic gas in the (quasi-)uniform three-dimensional potential of an optical box trap. Condensation is seen in the bimodal momentum distribution and the anisotropic time-of-flight expansion of the condensate. The critical temperature agrees with the theoretical prediction for a uniform Bose gas. The momentum distribution of our non-condensed quantum-degenerate gas is also clearly distinct from the conventional case of a harmonically trapped sample and close to the expected distribution in a uniform system. We confirm the coherence of our condensate in a matter-wave interference experiment. Our experiments open many new possibilities for fundamental studies of many-body physics.

Gaunt, Alexander L; Gotlibovych, Igor; Smith, Robert P; Hadzibabic, Zoran

2013-01-01T23:59:59.000Z

229

Bose-Einstein condensation of atoms in a uniform potential  

E-Print Network (OSTI)

We have observed Bose-Einstein condensation of an atomic gas in the (quasi-)uniform three-dimensional potential of an optical box trap. Condensation is seen in the bimodal momentum distribution and the anisotropic time-of-flight expansion of the condensate. The critical temperature agrees with the theoretical prediction for a uniform Bose gas. The momentum distribution of our non-condensed quantum-degenerate gas is also clearly distinct from the conventional case of a harmonically trapped sample and close to the expected distribution in a uniform system. We confirm the coherence of our condensate in a matter-wave interference experiment. Our experiments open many new possibilities for fundamental studies of many-body physics.

Alexander L. Gaunt; Tobias F. Schmidutz; Igor Gotlibovych; Robert P. Smith; Zoran Hadzibabic

2012-12-18T23:59:59.000Z

230

Detector error and Einstein-Podolsky-Rosen correlations  

Science Journals Connector (OSTI)

The question of how data collected in the spin- Einstein-Podolsky-Rosen experiment become compatible with local realism for increasing detector error is investigated in two ways. (1) It is shown that data obtained in any experiment with three settings of one detector axis and any number of settings of the other will be compatible with local realism if the detector error is such that data obtained with any two settings of each detector axis are compatible with local realism. (The error rate must be more than 7.96% for this to be so.) (2) It is shown that a detector error rate of 14.64% is enough to mask nonclassical correlations in any experiment with any number of settings of both detector axes; this improves on the figure of 21.13% given by Mermin and Schwarz.

Anupam Garg

1983-08-15T23:59:59.000Z

231

Regulating entanglement production in multitrap Bose-Einstein condensates  

E-Print Network (OSTI)

A system of traps is considered, each containing a large number of Bose-condensed atoms. This ensemble of traps is subject to the action of an external modulating field generating nonequilibrium nonground-state condensates. When the frequency of the modulating field is in resonance with the transition frequency between two different topological coherent modes, each trap becomes an analog of a finite-level resonant atom. Similarly to the case of atoms in an electromagnetic resonant field, one can create entanglement between atomic traps subject to a common resonant modulating field generating higher coherent modes in each of the traps. A method is suggested for regulating entanglement production in such a system of multitrap and multimode Bose-Einstein condensates coupled through a common resonant modulating field. Several regimes of evolutional entanglement production, regulated by manipulating the external field, are illustrated by numerical calculations.

V. I. Yukalov; E. P. Yukalova

2006-03-27T23:59:59.000Z

232

Fermilab | Science at Fermilab | Questions for the Universe | Einstein's  

NLE Websites -- All DOE Office Websites (Extended Search)

all the forces become one: all the forces become one: International Linear Collider (proposed) Further reading courtesy of Symmetry magazine Beyond the Standard Model The Great String Debate Jon Bagger Jonathan Bagger, professor of physics from Johns Hopkins University, explains how string theory has the potential to make Einstein's dream of a single grand unified force come true. View the Video Do all the forces become one? At the most fundamental level, particles and forces may converge, either through hidden principles like grand unification, or through radical physics like superstring. We already know that remarkably similar mathematical laws and principles describe all the known forces except gravity. Perhaps all forces are different manifestations of a single grand unified force, a force that would relate quarks to leptons and predict new

233

A modification of Einstein-Schrodinger theory that contains both general relativity and electrodynamics  

E-Print Network (OSTI)

We modify the Einstein-Schrodinger theory to include a cosmological constant $\\Lambda_z$ which multiplies the symmetric metric, and we show how the theory can be easily coupled to additional fields. The cosmological constant $\\Lambda_z$ is assumed to be nearly cancelled by Schrodinger's cosmological constant $\\Lambda_b$ which multiplies the nonsymmetric fundamental tensor, such that the total $\\Lambda=\\Lambda_z+\\Lambda_b$ matches measurement. The resulting theory becomes exactly Einstein-Maxwell theory in the limit as $|\\Lambda_z|\\to\\infty$. For $|\\Lambda_z|\\sim 1/(Planck length)^2$ the field equations match the ordinary Einstein and Maxwell equations except for extra terms which are $<10^{-16}$ of the usual terms for worst-case field strengths and rates-of-change accessible to measurement. Additional fields can be included in the Lagrangian, and these fields may couple to the symmetric metric and the electromagnetic vector potential, just as in Einstein-Maxwell theory. The ordinary Lorentz force equation is obtained by taking the divergence of the Einstein equations when sources are included. The Einstein-Infeld-Hoffmann (EIH) equations of motion match the equations of motion for Einstein-Maxwell theory to Newtonian/Coulombian order, which proves the existence of a Lorentz force without requiring sources. This fixes a problem of the original Einstein-Schrodinger theory, which failed to predict a Lorentz force. An exact charged solution matches the Reissner-Nordstrom solution except for additional terms which are $\\sim 10^{-66}$ of the usual terms for worst-case radii accessible to measurement. An exact electromagnetic plane-wave solution is identical to its counterpart in Einstein-Maxwell theory.

J. A. Shifflett

2008-01-15T23:59:59.000Z

234

Stability of the Einstein static universe in the presence of vacuum energy  

SciTech Connect

The Einstein static universe has played a central role in a number of emergent scenarios recently put forward to deal with the singular origin of the standard cosmological model. Here we study the existence and stability of the Einstein static solution in the presence of vacuum energy corresponding to conformally invariant fields. We show that the presence of vacuum energy stabilizes this solution by changing it to a center equilibrium point, which is cyclically stable. This allows nonsingular emergent cosmological models to be constructed in which initially the Universe oscillates indefinitely about an initial Einstein static solution and is thus past eternal.

Carneiro, Saulo [Astronomy Unit, School of Mathematical Sciences, Queen Mary University of London, Mile End Road, London E1 4NS (United Kingdom); Instituto de Fisica, Universidade Federal da Bahia, Salvador, BA, 40210-340 (Brazil); Tavakol, Reza [Astronomy Unit, School of Mathematical Sciences, Queen Mary University of London, Mile End Road, London E1 4NS (United Kingdom)

2009-08-15T23:59:59.000Z

235

Detecting Beyond-Einstein Polarizations of Continuous Gravitational Waves  

E-Print Network (OSTI)

The direct detection of gravitational waves with the next generation detectors, like Advanced LIGO, provides the opportunity to measure deviations from the predictions of General Relativity. One such departure would be the existence of alternative polarizations. To measure these, we study a single detector measurement of a continuous gravitational wave from a triaxial pulsar source. We develop methods to detect signals of any polarization content and distinguish between them in a model independent way. We present LIGO S5 sensitivity estimates for 115 pulsars.

Isi, Maximiliano; Mead, Carver; Pitkin, Matthew

2015-01-01T23:59:59.000Z

236

Quantum accelerometer: Distinguishing inertial Bob from his accelerated twin Rob by a local measurement  

Science Journals Connector (OSTI)

A single quantum system, such as the Unruh-DeWitt detector, can be used to determine absolute acceleration by local measurements on a quantum field. To show this, we consider two kinematically indistinguishable scenarios: an inertial observer, Bob, measuring the field of a uniformly accelerated cavity, and his noninertial twin, Rob, accelerating and making measurements in a stationary cavity. We find that these scenarios can be distinguished in the nonrelativistic regime only by measurements on highly excited massive fields, allowing one to detect the noninertialness of the reference frame.

Andrzej Dragan; Ivette Fuentes; Jorma Louko

2011-04-15T23:59:59.000Z

237

Addendum to Distinguishing Spins in Decay Chains at the Large Hadron Collider.  

E-Print Network (OSTI)

ar X iv :h ep -p h/ 06 06 21 2v 1 2 0 Ju n 20 06 Preprint typeset in JHEP style - PAPER VERSION CavendishHEP06/15 Addendum to Distinguishing Spins in Decay Chains at the Large Hadron Collider? Christiana Athanasiou1, Christopher G. Lester2... mass distributions of the three observable two-body combinations: dileptons (mll), quark- or antiquark-jet plus positive lepton (mjl+), and jet plus negative lepton (mjl?).1 If P (m|S) represents the normalized probability distribution of any one...

Athanasiou, Christiana; Lester, Christopher G; Smillie, Jennifer M; Webber, Bryan R

238

Einstein's Dream of Unified Forces - principles | U.S. DOE Office of  

Office of Science (SC) Website

Einstein's Dream of Unified Forces Einstein's Dream of Unified Forces High Energy Physics (HEP) HEP Home About Research Snowmass / P5 Planning Process Intensity Frontier Cosmic Frontier Theoretical Physics Advanced Technology R&D Accelerator R&D Stewardship Research Highlights .pdf file (13.1MB) Questions for the Universe Einstein's Dream of Unified Forces The Particle World The Birth of the Universe Accomplishments Facilities Science Highlights Benefits of HEP Funding Opportunities Advisory Committees News & Resources Contact Information High Energy Physics U.S. Department of Energy SC-25/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-3624 F: (301) 903-2597 E: sc.hep@science.doe.gov More Information » Questions for the Universe Einstein's Dream of Unified Forces

239

Detailed discussions and calculations of quantum Regge calculus of Einstein-Cartan theory  

Science Journals Connector (OSTI)

This article presents detailed discussions and calculations of the recent paper Quantum Regge calculus of Einstein-Cartan theory in 9. The Euclidean space-time is discretized by a four-dimensional simplicial complex. We adopt basic tetrad and spin-connection fields to describe the simplicial complex. By introducing diffeomorphism and local Lorentz invariant holonomy fields, we construct a regularized Einstein-Cartan theory for studying the quantum dynamics of the simplicial complex and fermion fields. This regularized Einstein-Cartan action is shown to properly approach to its continuum counterpart in the continuum limit. Based on the local Lorentz invariance, we derive the dynamical equations satisfied by invariant holonomy fields. In the mean-field approximation, we show that the averaged size of 4-simplex, the element of the simplicial complex, is larger than the Planck length. This formulation provides a theoretical framework for analytical calculations and numerical simulations to study the quantum Einstein-Cartan theory.

She-Sheng Xue

2010-09-30T23:59:59.000Z

240

Experiments with Bose-Einstein condensates in a double-well potential  

E-Print Network (OSTI)

Trapped atom interferometry was demonstrated with Bose-Einstein condensates in an optical double-well trap. Coherent splitting of trapped condensates was performed by deforming an optical single-well potential into a ...

Shin, Yong-Il

2006-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "albert einstein distinguished" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Bose-Einstein condensates in optical lattices : the superfluid to Mott insulator phase transition  

E-Print Network (OSTI)

87Rb Bose Einstein Condensate in 3D optical lattice was studied in the regime of weak interaction(the superfluid phase) and strong interaction(the Mott insulating phase). The stability of superfluid currents was studied ...

Mun, Jongchul

2008-01-01T23:59:59.000Z

242

Ghost-Free Massive $f(R)$ Theories Modelled as Effective Einstein Spaces and Cosmic Acceleration  

E-Print Network (OSTI)

We study how massive ghost-free gravity $f(R)$-modified theories, MGFTs, can be encoded into generic off-diagonal Einstein spaces. Using "auxiliary" connections completely defined by the metric fields and adapted to nonholonomic frames with associated nonlinear connection structure, we decouple and integrate in certain general forms the field equations in MGFT. Imposing additional nonholonomic constraints, we can generate Levi-Civita, LC, configurations and mimic MGFT effects via off-diagonal interactions of effective Einstein and/or Einstein-Cartan gravity with nonholonomically induced torsion. We show that imposing nonholonomic constraints it is possible reproduce very specific models of massive $f(R)$ gravity studied in \\cite{sarid,odintsr}. The cosmological evolution of ghost-free off-diagonal Einstein spaces is investigated. Certain compatibility of MGFT cosmology to small off--diagonal deformations of $\\Lambda $CDM models is established.

Sergiu I. Vacaru

2014-10-15T23:59:59.000Z

243

Thermodynamics In Einstein equation, the energy momentum tensor of homogeneous, isotropic  

E-Print Network (OSTI)

Thermodynamics In Einstein equation, the energy momentum tensor of homogeneous, isotropic fluid using the 1st law of thermodynamics, T = (U/S)V . Since U = V is expressed in terms of the temperature

Murayama, Hitoshi

244

Event-Based Computer Simulation Model of Aspect-Type Experiments Strictly Satisfying Einstein's Locality Conditions  

E-Print Network (OSTI)

Event-Based Computer Simulation Model of Aspect-Type Experiments Strictly Satisfying Einstein­Podolsky­Rosen­Bohm experiments with photons, we construct an event-based simulation model in which every essential element

245

Undoing the twist: The Ho?ava limit of Einstein-aether theory  

Science Journals Connector (OSTI)

We show that Ho?ava gravity can be obtained from Einstein-aether theory in the limit that the twist coupling constant goes to infinity, while holding fixed the expansion, shear and acceleration couplings. This limit helps to clarify the relation between the two theories, and allows Ho?ava results to be obtained from Einstein-aether ones. The limit is illustrated with several examples, including rotating black hole equations, parametrized post-Newtonian parameters, and radiation rates from binary systems.

Ted Jacobson

2014-04-02T23:59:59.000Z

246

ccsd-00000553(version1):29Aug2003 L'ARGUMENT EINSTEIN PODOLSKY ROSEN (EPR)  

E-Print Network (OSTI)

ccsd-00000553(version1):29Aug2003 L'ARGUMENT EINSTEIN PODOLSKY ROSEN (EPR) : PARADOXE, ALTERNATIVE montre clairement. On ne doit pas aujourd'hui lui faire dire le contraire. L'article EPR (A. Einstein, B, Wigner et jusqu'`a aujourd'hui, la r´eponse `a EPR a ´et´e le recours renouvel´e `a l

Paris-Sud XI, Université de

247

Lambda-renormalized Einstein-Schrodinger theory with spin-0 and spin-1/2 sources  

E-Print Network (OSTI)

The Einstein-Schrodinger theory is extended to include spin-0 and spin-1/2 sources, and the theory is derived from a Lagrangian density which allows other fields to be easily added. The original theory is also modified by including a cosmological constant caused by zero-point fluctuations. This cosmological constant which multiplies the symmetric metric is assumed to be nearly cancelled by Schrodinger's ``bare'' cosmological constant which multiplies the nonsymmetric fundamental tensor, such that the total ``physical'' cosmological matches measurement. We show that the resulting Lambda-renormalized Einstein-Schrodinger theory closely approximates ordinary Einstein-Maxwell theory and one-particle quantum mechanics. In particular, the field equations match the ordinary Einstein and Maxwell equations except for additional terms which are $<10^{-16}$ of the usual terms for worst-case field strengths and rates-of-change accessible to measurement. We also show that the theory predicts the exact Lorentz force equation and the exact Klein-Gordon and Dirac equations. And the theory becomes exactly Einstein-Maxwell theory and one-particle quantum mechanics in the limit as the cosmological constant from zero-point fluctuations goes to infinity. Lastly, we discuss the merits of our Lagrangian density compared to the Einstein-Maxwell Lagrangian density.

J. A. Shifflett

2004-11-02T23:59:59.000Z

248

Soft X-Ray Lithography for High-Aspect Ratio Sub-Micrometer  

NLE Websites -- All DOE Office Websites (Extended Search)

Institute for Nanometre Optics and Technology, Albert-Einstein-Str. 15, 12489 Berlin, Germany b Center for Advanced Microstructures & Devices, Louisiana State University, 6980...

249

July  

NLE Websites -- All DOE Office Websites (Extended Search)

as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and new materials. Zurek awarded Albert Einstein...

250

Institute for Advanced Study Christine Di Bella Institute for...  

NLE Websites -- All DOE Office Websites (Extended Search)

schol- ars including Albert Einstein, Erwin Panofsky, John von Neu- mann, J. Robert Oppenheimer, Freeman Dyson, Kurt Gdel, George Kennan, Clifford Geertz, Joan Wallach Scott,...

251

COLLOQUIUM: "The Usefulness of Useless Knowledge": The History...  

NLE Websites -- All DOE Office Websites (Extended Search)

scholars including Albert Einstein, Erwin Panofsky, John von Neumann, J. Robert Oppenheimer, Freeman Dyson, Kurt Gdel, George Kennan, Clifford Geertz, Joan Wallach Scott,...

252

Nuclear Creation  

Science Journals Connector (OSTI)

In 1905, Albert Einstein predicted mathematically that matter could be converted into energy. The world has never been the same since.

John Jagger

1991-01-01T23:59:59.000Z

253

E-Print Network 3.0 - anal cancer retrospective Sample Search...  

NLE Websites -- All DOE Office Websites (Extended Search)

and Biostatistics, Memorial Sloan-Kettering Cancer Source: Zang, Xingxing - Department of Microbiology and Immunology, Albert Einstein College of Medicine, Yeshiva University...

254

E-Print Network 3.0 - avian leukosis virus Sample Search Results  

NLE Websites -- All DOE Office Websites (Extended Search)

, is a cellular receptor for cytopathic ... Source: Brojatsch, Jrgen - Department of Microbiology and Immunology, Albert Einstein College of Medicine, Yeshiva University...

255

EPR, kvantemekanik og Bohr.  

E-Print Network (OSTI)

??Dette projekt omhandler omrdet hvor filosofi og fysik smelter sammen. Kvantemekanikkens tilblivelse fik en hrd medfart hvilket diskussionerne mellem isr Albert Einstein og Niels Bohr (more)

Nielsen, Morten Klockmann

2007-01-01T23:59:59.000Z

256

E-Print Network 3.0 - aus der richtung Sample Search Results  

NLE Websites -- All DOE Office Websites (Extended Search)

Computer Technologies and Information Sciences 4 Wegbeschreibung zur Anorganischen Chemie I Universitt Ulm, Albert-Einstein-Allee 11, 89081 Ulm Summary: Sekretariat Raum O25...

257

Testing outer boundary treatments for the Einstein equations  

E-Print Network (OSTI)

Various methods of treating outer boundaries in numerical relativity are compared using a simple test problem: a Schwarzschild black hole with an outgoing gravitational wave perturbation. Numerical solutions computed using different boundary treatments are compared to a `reference' numerical solution obtained by placing the outer boundary at a very large radius. For each boundary treatment, the full solutions including constraint violations and extracted gravitational waves are compared to those of the reference solution, thereby assessing the reflections caused by the artificial boundary. These tests use a first-order generalized harmonic formulation of the Einstein equations. Constraint-preserving boundary conditions for this system are reviewed, and an improved boundary condition on the gauge degrees of freedom is presented. Alternate boundary conditions evaluated here include freezing the incoming characteristic fields, Sommerfeld boundary conditions, and the constraint-preserving boundary conditions of Kreiss and Winicour. Rather different approaches to boundary treatments, such as sponge layers and spatial compactification, are also tested. Overall the best treatment found here combines boundary conditions that preserve the constraints, freeze the Newman-Penrose scalar Psi_0, and control gauge reflections.

Oliver Rinne; Lee Lindblom; Mark A. Scheel

2007-04-05T23:59:59.000Z

258

Violations of Einstein's Relativity: Motivations, Theory, and Phenomenology  

E-Print Network (OSTI)

One of the most difficult questions in present-day physics concerns a fundamental theory of space, time, and matter that incorporates a consistent quantum description of gravity. There are various theoretical approaches to such a quantum-gravity theory. Nevertheless, experimental progress is hampered in this research field because many models predict deviations from established physics that are suppressed by some power of the Planck scale, which currently appears to be immeasurably small. However, tests of relativity theory provide one promising avenue to overcome this phenomenological obstacle: many models for underlying physics can accommodate a small breakdown of Lorentz symmetry, and numerous feasible Lorentz-symmetry tests have Planck reach. Such mild violations of Einstein's relativity have therefore become a focus of recent research efforts. This presentation provides a brief survey of the key ideas in this research field and is geared at both experimentalists and theorists. In particular, several theoretical mechanisms leading to deviations from relativity theory are presented; the standard theoretical framework for relativity violations at currently accessible energy scales (i.e., the SME) is reviewed, and various present and near-future experimental efforts within this field are discussed.

Ralf Lehnert

2011-02-17T23:59:59.000Z

259

Acoustic white holes in flowing atomic Bose-Einstein condensates  

E-Print Network (OSTI)

We study acoustic white holes in a steadily flowing atomic Bose-Einstein condensate. A white hole configuration is obtained when the flow velocity goes from a super-sonic value in the upstream region to a sub-sonic one in the downstream region. The scattering of phonon wavepackets on a white hole horizon is numerically studied in terms of the Gross-Pitaevskii equation of mean-field theory: dynamical stability of the acoustic white hole is found, as well as a signature of a nonlinear back-action of the incident phonon wavepacket onto the horizon. The correlation pattern of density fluctuations is numerically studied by means of the truncated-Wigner method which includes quantum fluctuations. Signatures of the white hole radiation of correlated phonon pairs by the horizon are characterized; analogies and differences with Hawking radiation from acoustic black holes are discussed. In particular, a short wavelength feature is identified in the density correlation function, whose amplitude steadily grows in time since the formation of the horizon. The numerical observations are quantitatively interpreted by means of an analytical Bogoliubov theory of quantum fluctuations for a white hole configuration within the step-like horizon approximation.

Carlos Mayoral; Alessio Recati; Alessandro Fabbri; Renaud Parentani; Roberto Balbinot; Iacopo Carusotto

2010-09-30T23:59:59.000Z

260

Emergent gravitational dynamics in relativistic Bose--Einstein condensate  

E-Print Network (OSTI)

Analogue models of gravity have played a pivotal role in the past years by providing a test bench for many open issues in quantum field theory in curved spacetime such as the robustness of Hawking radiation and cosmological particle production. More recently, the same models have offered a valuable framework within which current ideas about the emergence of spacetime and its dynamics could be discussed via convenient toy models. In this context, we study here an analogue gravity system based on a relativistic Bose--Einstein condensate. We show that in a suitable limit this system provides not only an example of an emergent spacetime (with a massive and a massless relativistic fields propagating on it) but also that such spacetime is governed by an equation with geometric meaning that takes the familiar form of Nordstr{\\"o}m theory of gravitation. In this equation the gravitational field is sourced by the expectation value of the trace of the effective stress energy tensor of the quasiparticles while the Newton and cosmological constants are functions of the fundamental scales of the microscopic system. This is the first example of analogue gravity in which a Lorentz invariant, geometric theory of semiclassical gravity emerges from an underlying quantum theory of matter in flat spacetime.

Alessio Belenchia; Stefano Liberati; Arif Mohd

2014-10-22T23:59:59.000Z

Note: This page contains sample records for the topic "albert einstein distinguished" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Distillation protocols that involve local distinguishing: Composing upper and lower bounds on locally accessible information  

SciTech Connect

We find a universal lower bound on locally accessible information for arbitrary bipartite quantum ensembles, when one of the parties is two dimensional. In higher dimensions and in a higher number of parties, the bound is on accessible information by separable operations. We show that for any given density matrix (of an arbitrary number of parties and dimensions), there exists an ensemble, which averages to the given density matrix and whose locally accessible information saturates the lower bound. Moreover, we give a general method to obtain bounds on the yield of singlets in distillation protocols that involves local distinguishing, by using lower and upper bounds on locally accessible information. We then illustrate it by using our lower bound, along with a previously obtained upper bound, on locally accessible information.

Sen, Aditi; Sen, Ujjwal [ICFO-Institut de Ciencies Fotoniques, 08860 Castelldefels (Barcelona) (Spain); Institut fuer Theoretische Physik, Universitaet Hannover, D-30167 Hannover (Germany); Lewenstein, Maciej [Institut fuer Theoretische Physik, Universitaet Hannover, D-30167 Hannover (Germany); ICREA and ICFO-Institut de Ciencies Fotoniques, 08860 Castelldefels (Barcelona) (Spain)

2006-11-15T23:59:59.000Z

262

Distinguishing Supersymmetry From Universal Extra Dimensions or Little Higgs Models With Dark Matter Experiments  

SciTech Connect

There are compelling reasons to think that new physics will appear at or below the TeV-scale. It is not known what form this new physics will take, however. Although The Large Hadron collider is very likely to discover new particles associated with the TeV-scale, it may be difficult for it to determine the nature of those particles, whether superpartners, Kaluza-Klein modes or other states. In this article, we consider how direct and indirect dark matter detection experiments may provide information complementary to hadron colliders, which can be used to discriminate between supersymmetry, models with universal extra dimensions, and Little Higgs theories. We find that, in many scenarios, dark matter experiments can be effectively used to distinguish between these possibilities.

Hooper, Dan; Zaharijas, Gabrijela; /Fermilab

2006-12-01T23:59:59.000Z

263

How to Apply | U.S. DOE Office of Science (SC)  

Office of Science (SC) Website

How to Apply How to Apply Albert Einstein Distinguished Educator Fellowship (AEF) Program Einstein Fellowship Home Eligibility Benefits Obligations How to Apply Recommender Information Application Review and Selection Process Key Dates Frequently Asked Questions Contact WDTS Home How to Apply Print Text Size: A A A RSS Feeds FeedbackShare Page Application Requirements All applications to the Einstein Fellowship program must be completed online through the online application system. Applicants must meet all the eligibility requirements. All applications are due by Wednesday December 4, 2013 at 5:00PM EST The Application requirements include: 1. Completion of all required fields in the applications, including: Contact Information Education Background (formal education and continuing education)

264

Distinguishing Between Site Waste, Natural, and Other Sources of Contamination at Uranium and Thorium Contaminated Sites - 12274  

SciTech Connect

Uranium and thorium processing and milling sites generate wastes (source, byproduct, or technically enhanced naturally occurring material), that contain contaminants that are similar to naturally occurring radioactive material deposits and other industry wastes. This can lead to mis-identification of other materials as Site wastes. A review of methods used by the US Army Corps of Engineers and the Environmental Protection Agency to distinguish Site wastes from potential other sources, enhanced materials, and natural deposits, at three different thorium mills was conducted. Real case examples demonstrate the importance of understanding the methods of distinguishing wastes. Distinguishing between Site wastes and enhanced Background material can be facilitated by establishing and applying a formal process. Significant project cost avoidance may be realized by distinguishing Site wastes from enhanced NORM. Collection of information on other potential sources of radioactive material and physical information related to the potential for other radioactive material sources should be gathered and reported in the Historical Site Assessment. At a minimum, locations of other such information should be recorded. Site decision makers should approach each Site area with the expectation that non site related radioactive material may be present and have a process in place to distinguish from Site and non Site related materials. (authors)

Hays, David C. [United States Army Corps of Engineers, Kansas City, Missouri, 64106 (United States)

2012-07-01T23:59:59.000Z

265

Curvature fluctuations on asymptotically de Sitter spacetimes via the semiclassical Einstein's equations  

E-Print Network (OSTI)

It has been proposed recently to consider in the framework of cosmology an extension of the semiclassical Einstein's equations in which the Einstein tensor is considered as a random function. This paradigm yields a hierarchy of equations between the $n$-point functions of the quantum, normal ordered, stress energy-tensor and those associated to the stochastic Einstein tensor. Assuming that the matter content is a conformally coupled massive scalar field on de Sitter spacetime, this framework has been applied to compute the power spectrum of the quantum fluctuations and to show that it is almost scale-invariant. We test the robustness and the range of applicability of this proposal by applying it to a less idealized, but physically motivated, scenario, namely we consider Friedmann-Robertson-Walker spacetimes which behave only asymptotically in the past as a de Sitter spacetime. We show in particular that, under this new assumption and independently from any renormalization freedom, the power spectrum associate...

Dappiaggi, Claudio

2014-01-01T23:59:59.000Z

266

Einstein-Schrodinger theory in the presence of zero-point fluctuations  

E-Print Network (OSTI)

The Einstein-Schrodinger theory is modified by adding a cosmological constant contribution caused by zero-point fluctuations. This cosmological constant which multiplies the symmetric metric is assumed to be nearly cancelled by Schrodinger's ``bare'' cosmological constant which multiplies the nonsymmetric fundamental tensor, such that the total ``physical'' cosmological constant matches measurement. We first derive the field equations of the theory from a Lagrangian density. We show that the divergence of the Einstein equations vanishes using the Christoffel connection formed from the symmetric metric, allowing additional fields to be included in the same manner as with ordinary general relativity. We show that the field equations match the ordinary electro-vac Einstein and Maxwell equations except for additional terms which are $<10^{-16}$ of the usual terms for worst-case field strengths and rates-of-change accessible to measurement. We also show that the theory avoids ghosts in an unusual way. We show that the Einstein-Infeld-Hoffmann (EIH) equations of motion for this theory match the equations of motion for Einstein-Maxwell theory to Newtonian/Coulombian order, which proves the existence of a Lorentz force. We derive an exact electric monopole solution, and show that it matches the Reissner-Nordstrom solution except for additional terms which are $\\sim10^{-66}$ of the usual terms for worst-case radii accessible to measurement. Finally, we show that the theory becomes exactly electro-vac Einstein-Maxwell theory in the limit as the cosmological constant from zero-point fluctuations goes to infinity.

J. A. Shifflett

2003-10-29T23:59:59.000Z

267

Summer Feature | .EDUconnections  

Office of Scientific and Technical Information (OSTI)

Summer Feature Summer Feature U.S. DOE Office of Science Workforce Development for Teachers & Scientists WDTS plays a distinctive role in inspiring, engaging, and training the next generation of scientists, mathematicians, engineers, and technologists, in the science and technology mission of DOE. Albert Einstein Distinguished Educator Fellowship provides fellowships for elementary and secondary school mathematics and science teachers Brochure Graduate Student Awards for the Lindau Meeting of Nobel Laureates provides opportunity for U.S. doctoral students to travel to Lindau to participate in discussions with the Nobel Laureates 2011 Participants Community College Institute of Science and Technology (CCI) provides paid internships in science and engineering and technology

268

Homogeneous Einstein Metrics on SU(n) Manifolds, Hoop Conjecture for Black Rings, and Ergoregions in Magnetised Black Hole Spacetimes  

E-Print Network (OSTI)

of analytical and numerical techniques are employed to that end. It is known that every compact simple Lie Group admits a bi-invariant homogeneous Einstein metric. We use two ansatze to probe the existence of additional inequivalent Einstein metrics on the Lie...

Mujtaba, Abid Hasan

2013-01-09T23:59:59.000Z

269

Distinguishing features of flow in heterogeneous porous media: 4, Is a more general dynamic description required  

SciTech Connect

Groundwater theory that applies to only homogeneous systems is often too restricted to adequately solve actual groundwater pollution problems. For adequate solutions, the more general theory for heterogeneous porous systems is needed. However, the present dynamic and kinematic descriptions in heterogeneous materials have evolved largely from the restricted and less general homogeneous theory. These descriptions are inadequate because they fail to account for all the energy dissipation in the system. The basic distinguishing dynamic feature of heterogeneous flow theory from the less general homogeneous-based theory is the macroscopic rotational flow component. Specifically, existence of rotational flow components and their independence from the translational flow components are the necessary and sufficient conditions that completely differentiate between the complex lamellar heterogeneous flow theory and the simpler lamellar flow of homogeneous theory. This paper proposes a more general dynamic form of the flow equation to include the added rotational dissipation that is missing from the present Darcian description of flow in heterogeneous media. 31 refs.

Nelson, R.W.

1990-11-01T23:59:59.000Z

270

HLA allele distribution distinguishes sporadic inclusion body myositis from hereditary inclusion body myopathies  

Science Journals Connector (OSTI)

We studied the HLA class II associations in patients with sporadic inclusion body myositis (s-IBM) and hereditary inclusion body myopathies (h-IBM) and attempted to distinguish these myopathies on the basis of HLA allele assignments. Forty-five patients, 30 with s-IBM and 15 with h-IBM, underwent HLA class II allele-specific typing using polymerase chain reaction sequence-specific primers for 71 alleles contained in the DR?1, DR?3-5, and DQ?1 loci. In s-IBM, we found a high (up to 77%) frequency of DR?1*0301, DR?3*0101 (or DR?3*0202) and DQ?1*0201 alleles. No significant association with alleles in the DR and DQ haplotypes was found among the 15 h-IBM patients. The strong association of prominent alleles with s-IBM, but not h-IBM, suggests that s-IBM is a distinct disorder with an immunogenetic background that differs from h-IBM.

Boyd M Koffman; Kumaraswamy Sivakumar; Toni Simonis; David Stroncek; Marinos C Dalakas

1998-01-01T23:59:59.000Z

271

Future geodesic completeness of some spatially homogeneous solutions of the vacuum Einstein equations in higher dimensions  

E-Print Network (OSTI)

It is known that all spatially homogeneous solutions of the vacuum Einstein equations in four dimensions which exist for an infinite proper time towards the future are future geodesically complete. This paper investigates whether the analogous statement holds in higher dimensions. A positive answer to this question is obtained for a large class of models which can be studied with the help of Kaluza-Klein reduction to solutions of the Einstein-scalar field equations in four dimensions. The proof of this result makes use of a criterion for geodesic completeness which is applicable to more general spatially homogeneous models.

Arne Goedeke; Alan D. Rendall

2010-02-21T23:59:59.000Z

272

Control of a Bose-Einstein condensate by dissipation: Nonlinear Zeno effect  

SciTech Connect

We show that controlled dissipation can be used as a tool for exploring fundamental phenomena and managing mesoscopic systems of cold atoms and Bose-Einstein condensates. Even the simplest boson-Josephson junction, that is, a Bose-Einstein condensate in a double-well trap, subjected to removal of atoms from one of the two potential minima allows one to observe such phenomena as the suppression of losses and the nonlinear Zeno effect. In such a system the controlled dissipation can be used to create desired macroscopic states and implement controlled switching among different quantum regimes.

Shchesnovich, V. S. [Centro de Ciencias Naturais e Humanas, Universidade Federal do ABC, Santo Andre, SP 09210-170 (Brazil); Konotop, V. V. [Centro de Fisica Teorica e Computacional, Universidade de Lisboa, Avenida Professor Gama Pinto 2, Lisboa P-1649-003, Portugal and Departamento de Fisica, Faculdade de Ciencias, Universidade de Lisboa, Campo Grande, Ed. C8, Piso 6, Lisboa P-1749-016 (Portugal)

2010-05-15T23:59:59.000Z

273

The Second Law in 4D Einstein-Gauss-Bonnet Gravity  

E-Print Network (OSTI)

The topological contribution to black hole entropy of a Gauss-Bonnet term in four dimensions opens up the possibility of a violation of the second law of thermodynamics in black hole mergers. We show, however, that the second law is not violated in the regime where Einstein-Gauss-Bonnet holds as an effective theory and black holes can be treated thermodynamically. For mergers of AdS black holes, the second law appears to be violated even in Einstein gravity; we argue, however, that the second law holds when gravitational potential energy is taken into account.

Saugata Chatterjee; Maulik Parikh

2015-01-21T23:59:59.000Z

274

NERSC In the News  

NLE Websites -- All DOE Office Websites (Extended Search)

art just two years ago. fpAlbertEinsteinColorThumb.png U.S. Physicists Crack Mystery of "Mini-LHC" With a Little Help From Einstein March 23, 2011 | Source: DailyTech | A team led...

275

Christmas Memories There was little to distinguish this particular avenue from those that led to and from  

E-Print Network (OSTI)

Christmas Memories There was little to distinguish this particular avenue from those that led, as a solitary lamppost umbrelled light onto the rain soaked pavement below. Steely, winter clouds hovered over glanced around the car. From the lamppost, abandoned strands of light found their way into the car

Veiga, Pedro Manuel Barbosa

276

DANIEL M. KAMMEN Dr. Kammen is the Class of 1935 Distinguished Professor of Energy at the University of  

E-Print Network (OSTI)

, including Newsweek, Time, The New York Times, The Guardian, and The Financial Times. Kammen has appearedDANIEL M. KAMMEN Dr. Kammen is the Class of 1935 Distinguished Professor of Energy at the University of California, Berkeley, with parallel appointments in the Energy and Resources Group, the Goldman

Kammen, Daniel M.

277

Path-Integral Monte Carlo And The Squeezed Trapped Bose-Einstein Gas  

E-Print Network (OSTI)

Path-Integral Monte Carlo And The Squeezed Trapped Bose-Einstein Gas Juan Pablo Fernández1 the gas becomes effectively two-dimensional (2D). We confirm the plausibility of this result by performing different estimates for the condensate fraction. For the ideal gas, we find that the PIMC column density

Mullin, William J.

278

THERMAL STABILITY OF AN ADSORBED ARRAY OF CHARGES IN THE EINSTEIN APPROXIMATION  

E-Print Network (OSTI)

THERMAL STABILITY OF AN ADSORBED ARRAY OF CHARGES IN THE EINSTEIN APPROXIMATION J. Ross ABSTRACT For an infinite hexagonal array of ions adsorbed on a conducting plane of infinite extent. The ions are imaged in the uniform, conducting adsorbent and are assumed to move freely in the plane

Macdonald, James Ross

279

SOME REMARKS ON CONIC DEGENERATION AND BENDING OF POINCARE-EINSTEIN METRICS  

E-Print Network (OSTI)

of this sort (even though the building blocks do). Finally, we also obtain a one-parameter family of PE metrics zero section. We employ a construction by Page and Pope and discuss an interesting multi-parameter family of Poincar´e­Einstein metrics on X. One 1-parameter subfamily {gt}t>0 has the property that as t 0

Mazzeo, Rafe

280

arXiv:physics/0603142v117Mar2006 Brownian Motion after Einstein  

E-Print Network (OSTI)

arXiv:physics/0603142v117Mar2006 Brownian Motion after Einstein: Some new applications and new-4000 Roskilde, Denmark 2 Department of Biological Physics, E¨otv¨os Lor´and University (ELTE), H-1117 Budapest, Hungary 3 Max Planck Institute for the Physics of Complex Systems, N¨othnitzer Strasse 38, D

Note: This page contains sample records for the topic "albert einstein distinguished" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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281

Update: April 2014 / International Office -B EXCHANGE YOUR PERSPECTIVE -STUDY AT EINSTEIN'S BIRTHPLACE!  

E-Print Network (OSTI)

Update: April 2014 / International Office - B EXCHANGE YOUR PERSPECTIVE - STUDY AT EINSTEIN: April 2014 / International Office ­ B Download Fact Sheet from http://www.uni-ulm.de/international INTERNATIONAL OFFICE CONTACT INFORMATION International Office Website http://www.uni-ulm.de/international Postal

Pfeifer, Holger

282

The Einstein-Hamilton-Jacobi equation: Searching the classical solution for barotropic FRW  

E-Print Network (OSTI)

The dynamical evolution of the scale factor of FRW cosmological model is presented, when the equation of state of the material content assume the form $\\rm p=\\gamma \\rho$, $\\rm \\gamma=constant$, including the cosmological term. We use the WKB approximation and the relation with the Einstein-Hamilton-Jacobi equation to obtain the exact solutions.

S. R. Berbena; A. V. Berrocal; J. Socorro; Luis O. Pimentel

2006-07-27T23:59:59.000Z

283

Gravitational energy in a small region for the modified Einstein and Landau-Lifshitz pseudotensors  

E-Print Network (OSTI)

The purpose of the classical Einstein and Landau-Lifshitz pseudotensors is for determining the gravitational energy. Neither of them can guarantee a positive energy in holonomic frames. In the small sphere approximation, it has been required that the quasilocal expression for the gravitational energy-momentum density should be proportional to the Bel-Robinson tensor $B_{\\alpha\\beta\\mu\

Lau Loi So

2008-09-23T23:59:59.000Z

284

Les condensats de Bose-Einstein en rotation F. Chevy et J. Dalibard  

E-Print Network (OSTI)

température et la densité de particules n satisfont la condition1 : 3 2.6dBn , où / 2dB Bh mk = T , m désigne condensation de Bose-Einstein de gaz d'alcalins ultra-froids à Boulder et au MIT [1-3] sur des atomes de sodium

Dalibard, Jean

285

Synthesize Neutron-Drip-Line-Nuclides with Free-Neutron Bose-Einstein Condensates Experimentally  

E-Print Network (OSTI)

We first show a possible way to create a new type of matter, free-neutron Bose-Einstein condensate by the ultracold free-neutron-pair Bose-Einstein condensation and then determine the neutron drip line experimentally. The Bose-Einstein condensation of bosonic and fermionic atoms in atomic gases was performed experimentally and predicted theoretically early. Neutrons are similar to fermionic atoms. We found free neutrons could be cooled to ultracold neutrons with very low energy by other colder neutral atoms which are cooled by the laser. These neutrons form neutron pairs with spin zero, and then ultracold neutron-pairs form Bose-Einstein condensate. Our results demonstrate how these condensates can react with accelerated ion beams at different energy to synthesize very neutron-rich nuclides near, on or/and beyond the neutron drip line, to determine the neutron drip line and whether there are long-life nuclide or isomer islands beyond the neutron drip line experimentally. Otherwise, these experimental results will confirm our prediction that is in the whole interacting region or distance of nuclear force in all energy region from zero to infinite, Only repulsive nuclear force exists among identical nucleons and only among different nucleons exists attractive nuclear force.

Bao-Guo Dong

2014-09-22T23:59:59.000Z

286

Fachschaft Chemie und Wirtschaftschemie  

E-Print Network (OSTI)

Fachschaft Chemie und Wirtschaftschemie Albert-Einstein-Allee 11 c/o AStA Uni Ulm 89081 Ulm Tel: +49 731 50-22407 Fax: +49 731 50-22403 E-Mail: fs-chemie@uni-ulm.de Universität Ulm Albert-Einstein-Allee 11 · 89081 Ulm · www.uni-ulm.de Prof.Dr. Gerhard Maas Institut für Organische Chemie I Albert

Pfeifer, Holger

287

A note on "Einstein's special relativity beyond the speed of light by James M. Hill and Barry J. Cox"  

E-Print Network (OSTI)

We show that the transformations J. M. Hill and B. J. Cox introduce between inertial observers moving faster than light with respect to each other are consistent with Einstein's principle of relativity only if the spacetime is 2 dimensional.

Hajnal Andrka; Judit X. Madarsz; Istvn Nmeti; Gergely Szkely

2012-11-09T23:59:59.000Z

288

Supplementary Figure 1: Bayesian 50% majority-rule consensus trees for the combined dataset of mitochondrial genes (left) and nuclear genes (right). Color coding distinguishes  

E-Print Network (OSTI)

1 Supplementary Figure 1: Bayesian 50% majority-rule consensus trees for the combined dataset of mitochondrial genes (left) and nuclear genes (right). Color coding distinguishes groups supported by PP 99 for individual nuclear genes: Rag-1, Rag-2 and C-mos. Color coding distinguishes groups supported by PP 99

289

Excitations of One-Dimensional Bose-Einstein Condensates in a Random Potential  

SciTech Connect

We examine bosons hopping on a one-dimensional lattice in the presence of a random potential at zero temperature. Bogoliubov excitations of the Bose-Einstein condensate formed under such conditions are localized, with the localization length diverging at low frequency as l({omega}){approx}1/{omega}{sup {alpha}}. We show that the well-known result {alpha}=2 applies only for sufficiently weak random potential. As the random potential is increased beyond a certain strength, {alpha} starts decreasing. At a critical strength of the potential, when the system of bosons is at the transition from a superfluid to an insulator, {alpha}=1. This result is relevant for understanding the behavior of the atomic Bose-Einstein condensates in the presence of random potential, and of the disordered Josephson junction arrays.

Gurarie, V. [Department of Physics, University of Colorado, Boulder Colorado 80309 (United States); Refael, G. [Department of Physics, California Institute of Technology, Pasadena California 91125 (United States); Chalker, J. T. [Rudolf Peiers Centre for Theoretical Physics, Oxford University, 1 Keble Road, Oxford OX1 3NP (United Kingdom)

2008-10-24T23:59:59.000Z

290

Critical Collapse in Einstein-Gauss-Bonnet Gravity in Five and Six Dimensions  

E-Print Network (OSTI)

Einstein-Gauss-Bonnet gravity (EGB) provides a natural higher dimensional and higher order curvature generalization of Einstein gravity. It contains a new, presumably microscopic, length scale that should affect short distance properties of the dynamics, such as Choptuik scaling. We present the results of a numerical analysis in generalized flat slice co-ordinates of self-gravitating massless scalar spherical collapse in five and six dimensional EGB gravity near the threshold of black hole formation. Remarkably, the behaviour is universal (i.e. independent of initial data) but qualitatively different in five and six dimensions. In five dimensions there is a minimum horizon radius, suggestive of a first order transition between black hole and dispersive initial data. In six dimensions no radius gap is evident. Instead, below the GB scale there is a change in the critical exponent and echoing period.

Deppe, N; Taves, T; Kunstatter, G; Mann, R B

2012-01-01T23:59:59.000Z

291

Detecting and imaging single Rydberg electrons in a Bose-Einstein condensate  

E-Print Network (OSTI)

The quantum mechanical states of electrons in atoms and molecules are discrete spatial orbitals, which are fundamental for our understanding of atoms, molecules, and solids. They determine a wide range of basic atomic properties, ranging from the coupling to external fields to the whole field of chemistry. Nevertheless, the manifestation of electron orbitals in experiments so far has been rather indirect. In a detailed theoretical model, we analyze the impact of a single Rydberg electron onto a Bose-Einstein condensate and compare the results to experimental data. Based on this validated model we propose a method to optically image the shape of single electron orbitals using electron-phonon coupling in a Bose-Einstein condensate. This scheme requires only established and readily available experimental techniques and allows to directly capture textbook-like spatial images of single electronic orbitals in a single shot experiment.

Tomasz Karpiuk; Miros?aw Brewczyk; Kazimierz Rz??ewski; Jonathan B. Balewski; Alexander T. Krupp; Anita Gaj; Robert Lw; Sebastian Hofferberth; Tilman Pfau

2014-02-27T23:59:59.000Z

292

An Einstein-Hilbert Action for Axi-Dilaton Gravity in 4-Dimensions  

E-Print Network (OSTI)

We examine the axi-dilatonic sector of low energy string theory and demonstrate how the gravitational interactions involving the axion and dilaton fields may be derived from a geometrical action principle involving the curvature scalar associated with a non-Riemannian connection. In this geometry the antisymmetric tensor 3-form field determines the torsion of the connection on the frame bundle while the gradient of the metric is determined by the dilaton field. By expressing the theory in terms of the Levi-Civita connection associated with the metric in the ``Einstein frame'' we confirm that the field equations derived from the non-Riemannian Einstein-Hilbert action coincide with the axi-dilaton sector of the low energy effective action derived from string theory.

T Dereli; Robin W Tucker

1995-02-08T23:59:59.000Z

293

Colloquium: The Einstein-Podolsky-Rosen paradox: From concepts to applications  

SciTech Connect

This Colloquium examines the field of the Einstein, Podolsky, and Rosen (EPR) gedanken experiment, from the original paper of Einstein, Podolsky, and Rosen, through to modern theoretical proposals of how to realize both the continuous-variable and discrete versions of the EPR paradox. The relationship with entanglement and Bell's theorem are analyzed, and the progress to date towards experimental confirmation of the EPR paradox is summarized, with a detailed treatment of the continuous-variable paradox in laser-based experiments. Practical techniques covered include continuous-wave parametric amplifier and optical fiber quantum soliton experiments. Current proposals for extending EPR experiments to massive-particle systems are discussed, including spin squeezing, atomic position entanglement, and quadrature entanglement in ultracold atoms. Finally, applications of this technology to quantum key distribution, quantum teleportation, and entanglement swapping are examined.

Reid, M. D.; Drummond, P. D.; Bowen, W. P.; Cavalcanti, E. G.; Lam, P. K.; Bachor, H. A.; Andersen, U. L.; Leuchs, G. [ARC Centre of Excellence for Quantum-Atom Optics and Centre for Atom Optics and Ultrafast Spectroscopy, Swinburne University of Technology, P.O. Box 218, Melbourne, Victoria 3122 Australia (Australia); School of Physical Sciences, University of Queensland, Brisbane, Queensland 4072 (Australia); Centre for Quantum Dynamics, Griffith University, Brisbane, Queensland 4111 (Australia); ARC Centre of Excellence for Quantum-Atom Optics, Building 38, The Australian National University, Canberra, Australian Capital Territory 0200 (Australia); Department of Physics, Technical University of Denmark, Building 309, 2800 Lyngby (Denmark); Max-Planck Institute for the Science of Light and Department of Physics, Universitaet Erlangen-Nuernberg, D-91058 Erlangen (Germany)

2009-10-15T23:59:59.000Z

294

Rotating Bose-Einstein condensates: Closing the gap between exact and mean-field solutions  

E-Print Network (OSTI)

When a Bose-Einstein condensed cloud of atoms is given some angular momentum, it forms vortices arranged in structures with a discrete rotational symmetry. For these vortex states, the Hilbert space of the exact solution separates into a "primary" space related to the mean-field Gross-Pitaevskii solution and a "complementary" space including the corrections beyond mean-field. Considering a weakly-interacting Bose-Einstein condensate of harmonically-trapped atoms, we demonstrate how this separation can be used to close the conceptual gap between exact solutions for systems with only a few atoms and the thermodynamic limit for which the mean-field is the correct leading-order approximation. Although we illustrate this approach for the case of weak interactions, it is expected to be more generally valid.

Cremon, J C; Karabulut, E \\" O; Kavoulakis, G M; Mottelson, B R; Reimann, S M

2015-01-01T23:59:59.000Z

295

Event-based computer simulation model of Aspect-type experiments strictly satisfying Einstein's locality conditions  

E-Print Network (OSTI)

Inspired by Einstein-Podolsky-Rosen-Bohm experiments with photons, we construct an event-based simulation model in which every essential element in the ideal experiment has a counterpart. The model satisfies Einstein's criteria of local causality and does not rely on concepts of quantum and probability theory. We consider experiments in which the averages correspond to those of a singlet and product state of a system of two $S=1/2$ particles. The data is analyzed according to the experimental procedure, employing a time window to identify pairs. We study how the time window and the passage time of the photons, which depends on the relative angle between their polarization and the polarizer's direction, influences the correlations, demonstrating that the properties of the optical elements in the observation stations affect the correlations although the stations are separated spatially and temporarily. We show that the model can reproduce results which are considered to be intrinsically quantum mechanical.

De Raedt, Hans; Michielsen, Kristel; Keimpema, Koenraad; Miyashita, Seiji

2007-01-01T23:59:59.000Z

296

Event-based computer simulation model of Aspect-type experiments strictly satisfying Einstein's locality conditions  

E-Print Network (OSTI)

Inspired by Einstein-Podolsky-Rosen-Bohm experiments with photons, we construct an event-based simulation model in which every essential element in the ideal experiment has a counterpart. The model satisfies Einstein's criteria of local causality and does not rely on concepts of quantum and probability theory. We consider experiments in which the averages correspond to those of a singlet and product state of a system of two $S=1/2$ particles. The data is analyzed according to the experimental procedure, employing a time window to identify pairs. We study how the time window and the passage time of the photons, which depends on the relative angle between their polarization and the polarizer's direction, influences the correlations, demonstrating that the properties of the optical elements in the observation stations affect the correlations although the stations are separated spatially and temporarily. We show that the model can reproduce results which are considered to be intrinsically quantum mechanical.

Hans De Raedt; Koen De Raedt; Kristel Michielsen; Koenraad Keimpema; Seiji Miyashita

2007-12-16T23:59:59.000Z

297

Effect of interactions on the localization of a Bose-Einstein condensate in a quasiperiodic lattice  

SciTech Connect

The transport properties of a Bose-Einstein condensate in a 1D incommensurate bichromatic lattice are investigated both theoretically and experimentally. We observe a blockage of the center of mass motion with low atom number, and a return of motion when the atom number is increased. Solutions of the Gross-Pitaevskii equation show how the localization due to the quasidisorder introduced by the incommensurate bichromatic lattice is affected by the interactions.

Lye, J. E.; Fallani, L.; Fort, C.; Guarrera, V.; Modugno, M.; Wiersma, D. S.; Inguscio, M. [LENS, Dipartimento di Fisica Universita di Firenze and INFM, via Nello Carrara 1, I-50019 Sesto Fiorentino (Italy)

2007-06-15T23:59:59.000Z

298

THEOR`EMES DE DE FINETTI, LIMITES DE CHAMP MOYEN ET CONDENSATION DE BOSE-EINSTEIN  

E-Print Network (OSTI)

TH´EOR`EMES DE DE FINETTI, LIMITES DE CHAMP MOYEN ET CONDENSATION DE BOSE-EINSTEIN NICOLAS ROUGERIE principaux sont des th´eor`emes de structure `a la de Finetti qui d´ecrivent les limites pour N grand des'accent est mis sur les aspects quantiques, notamment l'approximation de champ moyen pour le fondamental d'un

Boyer, Edmond

299

A Positive-Energy Theorem for Einstein-Aether and Ho?ava Gravity  

Science Journals Connector (OSTI)

Energy positivity is established for a class of solutions to Einstein-aether theory and the IR limit of Ho?ava gravity within a certain range of coupling parameters. The class consists of solutions where the aether 4-vector is divergence-free on a spacelike surface to which it is orthogonal (which implies that the surface is maximal). In particular, this result holds for spherically symmetric solutions at a moment of time symmetry.

David Garfinkle and Ted Jacobson

2011-10-31T23:59:59.000Z

300

Quantum mechanics of the free Dirac electrons and Einstein photons, and the Cauchy process  

E-Print Network (OSTI)

Fundamental solutions for the free Dirac electron and Einstein photon equations in position coordinates are constructed as matrix valued functionals on the space of bump functions. It is shown that these fundamental solutions are related by a unitary transform via the Cauchy distribution in imaginary time. We study the way the classical relativistic mechanics of the free particle comes from the quantum mechanics of the free Dirac electron.

A. A. Beilinson

2014-12-03T23:59:59.000Z

Note: This page contains sample records for the topic "albert einstein distinguished" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Detecting Eve in communication with continuous-variable Einstein-Podolsky-Rosen correlations  

SciTech Connect

We study the validity of the entanglement parameter introduced in a recent publication by Guangqiang et al. [Phys. Rev. A 73, 012314 (2006)] for detecting Eve, the eavesdropper. We have found that Eve can be detected using this parameter only if Alice establishes a quantum correlation between the Einstein-Podolsky-Rosen (EPR) pair. This quantum correlation is related to the possibility of an apparent violation of the Heisenberg inequality for the quadrature components of the EPR pair.

Messikh, A. [Department of ICT, UIA, Jalan Gombak, 53100 Kuala Lumpur (Malaysia)

2007-03-15T23:59:59.000Z

302

Instability of Bose-Einstein condensation on quantum graphs under repulsive perturbations  

E-Print Network (OSTI)

In this Note we investigate Bose-Einstein condensation in interacting quantum many-particle systems on graphs. We extend previous results obtained for particles on an interval and show that even arbitrarily small repulsive two-particle interactions destroy a condensate in the non-interacting Bose gas. Our results also cover singular two-particle interactions, such as the well-known Lieb-Lininger model, in the thermodynamic limit.

Jens Bolte; Joachim Kerner

2014-11-26T23:59:59.000Z

303

On Einstein - Weyl unified model of dark energy and dark matter  

E-Print Network (OSTI)

Here I give a more detailed account of the part of the conference report that was devoted to reinterpreting the Einstein `unified models of gravity and electromagnetism' (1923) as the unified theory of dark energy (cosmological constant) and dark matter (neutral massive vector particle having only gravitational interactions). After summarizing Einstein's work and related earlier work of Weyl and Eddington, I present an approach to finding spherically symmetric solutions of the simplest variant of the Einstein models that was earlier mentioned in Weyl's work as an example of his generalization of general relativity. The spherically symmetric static solutions and homogeneous cosmological models are considered in some detail. As the theory is not integrable we study approximate solutions. In the static case, we show that there may exist two horizons and derive solutions near horizons. In cosmology, we propose to study the corresponding expansions of possible solutions near the origin and derive these expansions in a simplified model neglecting anisotropy. The structure of the solutions seems to hint at a possibility of an inflation mechanism that does not require adding scalar fields.

A. T. Filippov

2009-05-29T23:59:59.000Z

304

BoseEinstein condensation versus DickeHeppLieb transition in an optical cavity  

SciTech Connect

We provide an exact solution for the interplay between BoseEinstein condensation and the DickeHeppLieb self-organization transition of an ideal Bose gas trapped inside a single-mode optical cavity and subject to a transverse laser drive. Based on an effective action approach, we determine the full phase diagram at arbitrary temperature, which features a bi-critical point where the transitions cross. We calculate the dynamically generated band structure of the atoms and the associated suppression of the critical temperature for BoseEinstein condensation in the phase with a spontaneous periodic density modulation. Moreover, we determine the evolution of the polariton spectrum due to the coupling of the cavity photons and the atomic field near the self-organization transition, which is quite different above or below the BoseEinstein condensation temperature. At low temperatures, the critical value of the DickeHeppLieb transition decreases with temperature and thus thermal fluctuations can enhance the tendency to a periodic arrangement of the atoms. -- Highlights: Atoms inside a driven cavity can undergo two transitions: self-organization and BEC. The phase diagram has four phases which coexist at a bi-critical point. Atomcavity coupling creates a dynamical lattice for the atoms. Finite temperature can enhance the tendency towards self-organization. We calculate the detailed spectrum of the polaritonic excitations.

Piazza, Francesco, E-mail: francesco.piazza@ph.tum.de [Technische Universitt Mnchen, James-Franck-Strae 1, 85748 Garching (Germany)] [Technische Universitt Mnchen, James-Franck-Strae 1, 85748 Garching (Germany); Strack, Philipp [Department of Physics, Harvard University, Cambridge MA 02138 (United States)] [Department of Physics, Harvard University, Cambridge MA 02138 (United States); Zwerger, Wilhelm [Technische Universitt Mnchen, James-Franck-Strae 1, 85748 Garching (Germany)] [Technische Universitt Mnchen, James-Franck-Strae 1, 85748 Garching (Germany)

2013-12-15T23:59:59.000Z

305

Frequently Asked Questions | U.S. DOE Office of Science (SC)  

Office of Science (SC) Website

Frequently Asked Questions Frequently Asked Questions Albert Einstein Distinguished Educator Fellowship (AEF) Program Einstein Fellowship Home Eligibility Benefits Obligations How to Apply Key Dates Frequently Asked Questions Contact WDTS Home Frequently Asked Questions Print Text Size: A A A RSS Feeds FeedbackShare Page TABLE OF CONTENTS General Eligibility Applications Selection Participation Contacts GENERAL When is the application deadline? Applications are due Wednesday December 4, 2013 at 5:00pm EST, including three letters of recommendation. How do I apply? You can apply by going to the application website, which can be reached here External link . Back to Top Back to Top ELIGIBILITY I'm currently in my fifth year of teaching high school, am I eligible to apply? No, you must have completed five years of full-time teaching at the time of

306

Application Review and Selection Process | U.S. DOE Office of Science (SC)  

Office of Science (SC) Website

Application Review and Selection Process Application Review and Selection Process Albert Einstein Distinguished Educator Fellowship (AEF) Program Einstein Fellowship Home Eligibility Benefits Obligations How to Apply Recommender Information Application Review and Selection Process Key Dates Frequently Asked Questions Contact WDTS Home How to Apply Application Review and Selection Process Print Text Size: A A A RSS Feeds FeedbackShare Page Application Eligibility and Compliance: To be considered for the program, an applicant must meet all eligibility criteria and submit an application comprising all required materials by the application deadline. To assess eligibility, and prior to the merit review, an initial review of all applications will be conducted to verify applicant eligibility and ensure all the required application materials have been

307

Creation and Detection of Skyrmions in a Bose-Einstein Condensate  

SciTech Connect

We present the first experimental realization and characterization of two-dimensional Skyrmions and half-Skyrmions in a spin-2 Bose-Einstein condensate. The continuous rotation of the local spin of the Skyrmion through an angle of pi (and half-Skyrmion through an angle of pi/2) across the cloud is confirmed by the spatial distribution of the three spin states as parametrized by the bending angle of the l vector. The winding number w=(0,1,2) of the internal spin states comprising the Skyrmions is confirmed through matter-wave interference.

Leslie, L. S.; Deutsch, B. M. [Institute of Optics, University of Rochester, Rochester, New York 14627 (United States); Hansen, A.; Wright, K. C. [Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627 (United States); Bigelow, N. P. [Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627 (United States); Institute of Optics and Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623 (United States)

2009-12-18T23:59:59.000Z

308

Emergent gravity by tuning the effective Planck length in Bose-Einstein Condensate  

E-Print Network (OSTI)

We show that at lowest energy nonlocal interactions, the tuning of s-wave scattering length can enable a systematic control over the quantum pressure term in a Bose-Einstein condensate (BEC). We derive the equation for the massless free excitations in an analogue curved space-time by controlling the effective Planck length. Our controlled derivation indicates a breakdown of this dynamics at length scales comparable to effective Planck length. We also specify the correction that one has to take into account at a larger length scale in a flat space-time due to the emergent gravity at intermediate length scales.

Sarkar, Supratik

2014-01-01T23:59:59.000Z

309

Core sizes and dynamical instabilities of giant vortices in dilute Bose-Einstein condensates  

SciTech Connect

Motivated by a recent demonstration of cyclic addition of quantized vorticity into a Bose-Einstein condensate, the vortex pump, we study dynamical instabilities and core sizes of giant vortices. The core size is found to increase roughly as a square-root function of the quantum number of the vortex, whereas the strength of the dynamical instability either saturates to a fairly low value or increases extremely slowly for large quantum numbers. Our studies suggest that giant vortices of very high angular momenta may be achieved by gradually increasing the operation frequency of the vortex pump.

Kuopanportti, Pekko; Lundh, Emil; Huhtamaeki, Jukka A. M.; Pietilae, Ville; Moettoenen, Mikko [Department of Applied Physics/COMP, Aalto University School of Science and Technology, P.O. Box 15100, FI-00076 AALTO (Finland); Department of Physics, Umeaa University, SE-90187 Umeaa (Sweden); Department of Applied Physics/COMP, Aalto University School of Science and Technology, P.O. Box 15100, FI-00076 AALTO, Finland and Department of Physics, Okayama University, Okayama 700-8530 (Japan); Department of Applied Physics/COMP, Aalto University School of Science and Technology, P.O. Box 15100, FI-00076 AALTO, Finland and Australian Research Council Centre of Excellence for Quantum Computer Technology, School of Electrical Engineering and Telecommunications, University of New South Wales, Sydney NSW 2052 (Australia); Department of Applied Physics/COMP, Aalto University School of Science and Technology, P.O. Box 15100, FI-00076 AALTO, Finland, Australian Research Council Centre of Excellence for Quantum Computer Technology, School of Electrical Engineering and Telecommunications, University of New South Wales, Sydney NSW 2052 (Australia) and Low Temperature Laboratory, Aalto University School of Science and Technology, P.O. Box 13500, FI-00076 AALTO (Finland)

2010-02-15T23:59:59.000Z

310

Dynamics of a Bose-Einstein condensate in a horizontally vibrating shallow optical lattice  

SciTech Connect

We consider a solitonic solution of the self-attractive Bose-Einstein condensate in a one-dimensional external potential of a shallow optical lattice with large periodicity when the lattice is horizontally shaken. We investigate the dynamics of the bright soliton through the properties of the fixed points. The special type of bifurcation results in a simple criterion for the stability of the fixed points depending only on the amplitude of the shaking lattice. Because of the similarity of the equations with those of an ac-driven Josephson junction, some results may find applications in other branches of physics.

Valizadeh, A.; Jahanbani, Kh.; Kolahchi, M. R. [Institute for Advanced Studies in Basic Sciences, P.O. Box 45195-1159, Zanjan (Iran, Islamic Republic of)

2010-02-15T23:59:59.000Z

311

Interaction of half-quantized vortices in two-component Bose-Einstein condensates  

SciTech Connect

We study the asymptotic interaction between two half-quantized vortices in two-component Bose-Einstein condensates. When two vortices in different components are placed at distance 2R, the leading order of the force between them is found to be (lnR/{xi}-1/2)/R{sup 3}, in contrast to 1/R between vortices placed in the same component. We derive it analytically using the Abrikosov ansatz and the profile functions of the vortices, confirmed numerically with the Gross-Pitaevskii model. We also find that the short-range cutoff of the intervortex potential linearly depends on the healing length.

Eto, Minoru [Department of Physics, Yamagata University, Yamagata 990-8560 (Japan); Kasamatsu, Kenichi [Department of Physics, Kinki University, Higashi-Osaka, 577-8502 (Japan); Nitta, Muneto [Department of Physics, and Research and Education Center for Natural Sciences, Keio University, Hiyoshi 4-1-1, Yokohama, Kanagawa 223-8521 (Japan); Takeuchi, Hiromitsu [Graduate School of Integrated Arts and Science, Hiroshima University, Kagamiyama, 1-7-1, Higashi Hiroshima, 739-8521 (Japan); Tsubota, Makoto [Department of Physics, Osaka City University, Sumiyoshi-Ku, Osaka 558-8585 (Japan)

2011-06-15T23:59:59.000Z

312

Analyses of Third Order Bose-Einstein Correlation by Means of Coulomb Wave Function  

SciTech Connect

In order to include a correction by the Coulomb interaction in Bose-Einstein correlation (BEC), the wave function for the Coulomb scattering were introduced in the quantum optical approach to BEC in the previous work. If we formulate the amplitude written by Coulomb wave functions according to the diagram for BEC in the plane wave formulation, the formula for 3{pi} -BEC becomes simpler than that of our previous work. We re-analyze the raw data of 3{pi} -BEC by NA44 and STAR Collaborations by this formula. Results are compared with the previous ones.

Biyajima, Minoru [Department of Physics, Shinshu University, Matsumoto, 390-8621 (Japan); Mizoguchi, Takuya [Toba National College of Maritime Technology, Toba 517-8501 (Japan); Suzuki, Naomichi [Department of Comprehensive Management, Matsumoto University, Matsumoto 390-1295 (Japan)

2006-04-11T23:59:59.000Z

313

Third order Bose-Einstein correlations by means of Coulomb wave function revisited  

E-Print Network (OSTI)

In previous works, in order to include correction by the Coulomb wave function in Bose-Einstein correlations (BEC), the two-body Coulomb scattering wave functions have been utilized in the formulation of three-body BEC. However, the three-body Coulomb scattering wave function, which satisfies approximately the three-body Coulomb scattering Schrodinger equation, cannot be written by the product of the two-body scattering wave functions. Therefore, we reformulate the three-body BEC, and reanalyze the data. A set of reasonable parameters is obtained.

Minoru Biyajima; Takuya Mizoguchi; Naomichi Suzuki

2005-12-21T23:59:59.000Z

314

Analyses of third order Bose-Einstein correlation by means of Coulomb wave function  

E-Print Network (OSTI)

In order to include a correction by the Coulomb interaction in Bose-Einstein correlations (BEC), the wave function for the Coulomb scattering were introduced in the quantum optical approach to BEC in the previous work. If we formulate the amplitude written by Coulomb wave functions according to the diagram for BEC in the plane wave formulation, the formula for $3\\pi^-$BEC becomes simpler than that of our previous work. We re-analyze the raw data of $3\\pi^-$BEC by NA44 and STAR Collaborations by this formula. Results are compared with the previous ones.

Minoru Biyajima; Takuya Mizoguchi; Naomichi Suzuki

2005-10-03T23:59:59.000Z

315

Interaction of half-quantized vortices in two-component Bose-Einstein condensates  

E-Print Network (OSTI)

We study the asymptotic interaction between two half-quantized vortices in two-component Bose-Einstein condensates. When two vortices in different components are placed at distance 2R, the leading order of the force between them is found to be (log R/\\xi-1/2)/R^3, in contrast to 1/R between vortices placed in the same component. We derive it analytically using the Abrikosov ansatz and the profile functions of the vortices, confirmed numerically with the Gross-Pitaevskii model. We also find that the short-range cutoff of the inter-vortex potential linearly depends on the healing length.

Minoru Eto; Kenichi Kasamatsu; Muneto Nitta; Hiromitsu Takeuchi; Makoto Tsubota

2011-03-31T23:59:59.000Z

316

Bose-Einstein supersolid phase for a type of momentum-dependent interaction  

SciTech Connect

A class of nonlocal interactions between bosons is found to favor a crystalline Bose-Einstein condensation ground state. By using both low-energy effective field theory and a variational wave function method, we compare this state not only with the homogeneous superfluid, as has been done previously, but also with the normal (nonsuperfluid) crystalline phase and obtain the phase diagram. The key characters are (1) the interaction potential displays a negative minimum at finite momentum, which determines the wave vector of this supersolid phase, and (2) the wavelength corresponding to the momentum minimum needs to be greater than the mean interboson distance.

Li Xiaopeng; Lin Chungwei [Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania 15260 (United States); Liu, W. Vincent [Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania 15260 (United States); Center for Cold Atom Physics, Chinese Academy of Sciences, Wuhan 430071 (China)

2011-02-15T23:59:59.000Z

317

Addendum to ''Thin-shell wormholes supported by ordinary matter in Einstein-Gauss-Bonnet gravity''  

SciTech Connect

Thin-shell wormholes are constructed starting from the exotic branch of the Wiltshire spherically symmetric solution of Einstein-Gauss-Bonnet gravity. The energy-momentum tensor of the shell is studied, and it is shown that configurations supported by matter satisfying the energy conditions exist for certain values of the parameters. Differing from the previous result associated with the normal branch of the Wiltshire solution, this is achieved for small positive values of the Gauss-Bonnet parameter and for vanishing charge.

Simeone, Claudio [IFIBA-CONICET, and Departamento de Fisica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellon I, 1428, Buenos Aires (Argentina)

2011-04-15T23:59:59.000Z

318

Disruption of reflecting Bose-Einstein condensates due to interatomic interactions and quantum noise  

SciTech Connect

We perform fully three-dimensional simulations, using the truncated Wigner method, to investigate the reflection of Bose-Einstein condensates from abrupt potential barriers. We show that the interatomic interactions can disrupt the internal structure of a cigar-shaped cloud with a high atom density at low approach velocities, damping the center-of-mass motion and generating vortices. Furthermore, by incorporating quantum noise we show that scattering halos form at high approach velocities, causing an associated condensate depletion. We compare our results to recent experimental observations.

Scott, R. G.; Hutchinson, D. A. W.; Gardiner, C. W. [The Jack Dodd Centre for Photonics and Ultra-Cold Atoms, Department of Physics, University of Otago, P.O. Box 56, Dunedin (New Zealand)

2006-11-15T23:59:59.000Z

319

Elementary excitations of a Bose-Einstein condensate in an effective magnetic field  

SciTech Connect

We calculate the low-energy elementary excitations of a Bose-Einstein condensate in an effective magnetic field. The field is created by the interplay between light beams carrying orbital angular momentum and the trapped atoms [G. Juzeliunas et al., Phys. Rev. A 71, 053614 (2005)]. We examine the role of the homogeneous magnetic field, familiar from studies of rotating condensates, and also investigate spectra for vector potentials with a more general radial dependence. We discuss the instabilities which arise and how these may be manifested.

Murray, D. R.; Barnett, Stephen M.; Oehberg, P.; Gomila, Damia [Department of Physics, SUPA, University of Strathclyde, Glasgow G4 0NG (United Kingdom); Department of Physics, SUPA, Heriot-Watt University, Edinburgh EH14 4AS (United Kingdom); Instituto de Fisica Interdisciplinar y Sistemas Complejos (IFISC, CSIC-UIB), Campus Universitat Illes Balears, E-07122 Palma de Mallorca (Spain)

2007-11-15T23:59:59.000Z

320

Expansion of a Bose-Einstein Condensate in the Presence of Disorder  

SciTech Connect

Expansion of a Bose-Einstein condensate (BEC) is studied in the presence of a random potential. The expansion is controlled by a single parameter ({mu}{tau}{sub eff}/({Dirac_h}/2{pi})), where {mu} is the chemical potential, prior to the release of the BEC from the trap, and {tau}{sub eff} is a transport relaxation time which characterizes the strength of the disorder. Repulsive interactions (nonlinearity) facilitate transport and can lead to diffusive spreading of the condensate which, in the absence of interactions, would have remained localized in the vicinity of its initial location.

Shapiro, Boris [Department of Physics, Technion-Israel Institute of Technology, Haifa 32000 (Israel)

2007-08-10T23:59:59.000Z

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321

Post-Newtonian parameters and constraints on Einstein-aether theory  

Science Journals Connector (OSTI)

We analyze the observational and theoretical constraints on Einstein-aether theory, a generally covariant theory of gravity coupled to a dynamical, unit, timelike vector field that breaks local Lorentz symmetry. The results of a computation of the remaining post-Newtonian parameters are reported. These are combined with other results to determine the joint post-Newtonian, vacuum-?erenkov, nucleosynthesis, stability, and positive-energy constraints. All of these constraints are satisfied by parameters in a large two-dimensional region in the four-dimensional parameter space defining the theory.

Brendan Z. Foster and Ted Jacobson

2006-03-15T23:59:59.000Z

322

Modulational instability of a trapped Bose-Einstein condensate with two- and three-body interactions  

Science Journals Connector (OSTI)

We investigate analytically and numerically the modulational instability of a Bose-Einstein condensate with both two- and three-body interatomic interactions and trapped in an external parabolic potential. Analytical investigations performed lead us to establish an explicit time-dependent criterion for the modulational instability of the condensate. The effects of the potential as well as of the quintic nonlinear interaction are studied. Direct numerical simulations of the Gross-Pitaevskii equation with two- and three-body interactions describing the dynamics of the condensate agree with the analytical predictions.

Etienne Wamba; Alidou Mohamadou; Timolon C. Kofan

2008-04-23T23:59:59.000Z

323

Quantum coherence for Bose-Einstein condensates induced by an imaginary potential  

SciTech Connect

The single-body Schroedinger equation with complex potentials has been studied intensively. In this work, we investigate the dynamical process for Bose-Einstein condensed gases, based on the many-body Schroedinger equation with complex potentials. It is shown that a weakly imaginary periodic potential may induce perfect quantum coherence between different condensates, even without considering interatomic interactions. This imaginary-potential-induced quantum coherence may be tested with present experimental techniques. We also consider the quantum coherence in the presence of both the imaginary periodic potential and interatomic interactions.

Xiong Hongwei [State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071 (China)

2010-11-15T23:59:59.000Z

324

General Einstein-Podolsky-Rosen-type entanglement of continuous variables for bosons  

SciTech Connect

We show that general Einstein-Podolsky-Rosen-type (EPR-type) entanglement of continuous variables with arbitrary eigenvalues for bosons can be yielded. For bosons of nonzero resting mass EPR-type entangled state can be achieved by the use of atomic beam splitters in particles of a position eigenstate and n-1 momentum eigenstates. For light field in which resting mass of the photon is zero, approximate EPR-type entanglement can be experimentally generated when we apply optical beam splitters to one position-squeezed coherence state and n-1 momentum-squeezed coherence states, this approximate version tends to perfect EPR entanglement in the limit of infinite squeezing.

Jiang Nianquan; Zheng Yizhuang [Department of Physics, Wenzhou University, Wenzhou 325027 (China)

2006-07-15T23:59:59.000Z

325

Swift Loss of Coherence of Soliton Trains in Attractive Bose-Einstein Condensates  

SciTech Connect

Experiments on ultracold attractive Bose-Einstein condensates (BECs) have demonstrated that at low dimensions atomic clouds can form localized objects, propagating for long times without significant changes in their shapes and attributed to bright matter-wave solitons, which are coherent objects. We consider the dynamics of bright soliton trains from the perspective of many-boson physics. The fate of matter-wave soliton trains is actually to quickly lose their coherence and become macroscopically fragmented BECs. The death of the coherent matter-wave soliton trains gives birth to fragmented objects, whose quantum properties and experimental signatures differ substantially from what is currently assumed.

Streltsov, Alexej I.; Cederbaum, Lorenz S. [Theoretische Chemie, Physikalisch-Chemisches Institut, Universitaet Heidelberg, Im Neuenheimer Feld 229, D-69120 Heidelberg (Germany); Alon, Ofir E. [Theoretische Chemie, Physikalisch-Chemisches Institut, Universitaet Heidelberg, Im Neuenheimer Feld 229, D-69120 Heidelberg (Germany); Department of Physics, University of Haifa at Oranim, Tivon 36006 (Israel)

2011-06-17T23:59:59.000Z

326

Direct evaporative cooling of K41 into a Bose-Einstein condensate  

Science Journals Connector (OSTI)

We have investigated the collisional properties of K41 atoms at ultracold temperatures. To demonstrate the possibility of using K41 as a coolant, a Bose-Einstein condensate of K41 atoms in the stretched state (F=2,mF=2) was created by direct evaporative cooling in a magnetic trap. An upper bound of the three-body loss coefficient for atoms in the condensate was determined to be 4(2)10?29?cm?6?s?1. A Feshbach resonance in the F=1,?mF=?1, state was observed at 51.35(10) G, which is in good agreement with theoretical prediction.

T. Kishimoto; J. Kobayashi; K. Noda; K. Aikawa; M. Ueda; S. Inouye

2009-03-30T23:59:59.000Z

327

Vortex states in a binary mixture of Bose-Einstein condensates  

Science Journals Connector (OSTI)

The vortex configurations in the Bose-Einstein condensate of a mixture of two different spin states |F=1,mf=-1? and |2,1? of 87Rb atoms corresponding to the recent experiments by Matthews et al. [Phys. Rev. Lett. 83, 2498 (1999)] are considered in the framework of the Thomas-Fermi approximation as functions of N2/N1, where N1 is the number of atoms in the state |1,-1? and N2 in the state |2,1?. Ranges of this ratio are determined within which the various configurations of the binary condensate are stable.

S. T. Chui; V. N. Ryzhov; E. E. Tareyeva

2001-01-11T23:59:59.000Z

328

Realization of a Sonic Black Hole Analog in a Bose-Einstein Condensate  

SciTech Connect

We have created an analog of a black hole in a Bose-Einstein condensate. In this sonic black hole, sound waves, rather than light waves, cannot escape the event horizon. A steplike potential accelerates the flow of the condensate to velocities which cross and exceed the speed of sound by an order of magnitude. The Landau critical velocity is therefore surpassed. The point where the flow velocity equals the speed of sound is the sonic event horizon. The effective gravity is determined from the profiles of the velocity and speed of sound. A simulation finds negative energy excitations, by means of Bragg spectroscopy.

Lahav, Oren; Itah, Amir; Blumkin, Alex; Gordon, Carmit; Rinott, Shahar; Zayats, Alona; Steinhauer, Jeff [Technion-Israel Institute of Technology, Haifa (Israel)

2010-12-10T23:59:59.000Z

329

Long storage time of collective coherence in an optically trapped Bose-Einstein condensate Yutaka Yoshikawa,1,2,* Kazuyuki Nakayama,2  

E-Print Network (OSTI)

of condensates, a high conversion efficiency of over 70% and a long storage time of about 0.13 ms were achievedLong storage time of collective coherence in an optically trapped Bose-Einstein condensate Yutaka- Einstein condensate Phys. Rev. Lett. 99, 220407 2007 . This time we report the drastic improvement

Torii, Yoshio

330

PHYSICAL REVIEW A 84, 043641 (2011) Optimized Bose-Einstein-condensate production in a dipole trap based on a 1070-nm  

E-Print Network (OSTI)

: unexpected high atom losses have been observed especially when using cost-efficient high-power multifrequencyPHYSICAL REVIEW A 84, 043641 (2011) Optimized Bose-Einstein-condensate production in a dipole trap-Einstein condensates (BEC) of 87 Rb in a crossed dipole trap with direct loading from a magneto-optical trap

Birkl, Gerhard

331

Mach-Zehnder Bragg interferometer for a Bose-Einstein condensate Yoshio Torii,* Yoichi Suzuki, Mikio Kozuma, Toshiaki Sugiura, and Takahiro Kuga  

E-Print Network (OSTI)

. This results in high efficiency 14 where, in principle, all of the atoms can contribute to the signal. NormalMach-Zehnder Bragg interferometer for a Bose-Einstein condensate Yoshio Torii,* Yoichi Suzuki a Mach-Zehnder interferometer using Bose-Einstein condensed rubidium atoms and optical Bragg diffraction

Torii, Yoshio

332

High-fidelity manipulation of a Bose-Einstein condensate using an optical standing wave K. J. Hughes, B. Deissler, J. H. T. Burke, and C. A. Sackett*  

E-Print Network (OSTI)

High-fidelity manipulation of a Bose-Einstein condensate using an optical standing wave K. J that Bragg diffraction can provide efficient beam-splitting and reflection operations for atomic wave packets using laser cooling or Bose-Einstein condensation 8,9 . This too has been applied to atom

Sackett, Cass

333

Thermalization of a Parametrically Driven Magnon Gas Leading to Bose-Einstein Condensation V. E. Demidov, O. Dzyapko, and S. O. Demokritov*  

E-Print Network (OSTI)

Thermalization of a Parametrically Driven Magnon Gas Leading to Bose-Einstein Condensation V. E samples [6] brought an opportunity for direct studies of multimagnon relaxation processes in a dense gas of the magnon gas in such a way that the gas undergoes Bose-Einstein condensation (BEC). For this fundamental

Demokritov, S.O.

334

Primary and reciprocal space-time experiments, relativistic reciprocity relations and Einstein's train-embankment thought experiment  

E-Print Network (OSTI)

The concepts of primary and reciprocal experiments and base and travelling frames in special relativity are concisely described and applied to several different space-time experiments. These include Einstein's train/embankment thought experiment and a related thought experiment, due to Sartori, involving two trains in parallel motion with different speeds. Spatially separated clocks which are synchronised in their common proper frame are shown to be so in all inertial frames and their spatial separation to be Lorentz invariant. The interpretions given by Einstein and Sartori of their experiments, as well as those given by the present author in previous papers, are shown to be erroneous.

J. H. Field

2011-11-11T23:59:59.000Z

335

Relativistic Boltzmann transport approach with Bose-Einstein statistics and the onset of gluon condensation  

E-Print Network (OSTI)

We study the evolution of a gluon system under conditions of density and temperature similar to those explored in the early stage of ultra-relativistic heavy-ion collisions. We first describe the implementation of Relativistic Boltzmann-Nordheim (RBN) transport approach that includes in the collision integral the quantum effects of Bose-Einstein Statistics. Then, we describe the evolution of a spatially uniform gluon system in a box under elastic collisions solving the RBN for various initial conditions. We discuss the critical phase-space density that leads to the onset of a Bose-Einstein condensate (BEC) and the time scale for this process to occur. In particular, thanks to the fact that RBN allows to relax the small angle approximation, we study the effect at both small and large screening mass $ m_{D} $. For small $ m_{D}\\ll T $ we see that our solution of RBN is in agreement with the recent extensive studies within a Fokker-Planck scheme in small angle approximation. For the same total cross section but with large $ m_{D}\\simeq 2\\, T $ (large angle scatterings), we see a significant time speed-up of the onset of BEC respect to small $m_{D}\\ll T$. This further strengthen the possibility that at least a transient BEC is formed in the early stage of ultra-relativistic heavy-ion collisions.

F. Scardina; D. Perricone; S. Plumari; M. Ruggieri; V. Greco

2014-08-06T23:59:59.000Z

336

The Einstein-Jordan conundrum and its relation to ongoing foundational research in local quantum physics  

E-Print Network (OSTI)

We demonstrate the extraordinary modernity of the 1924/25 "Einstein-Jordan fluctuation conundrum", a Gedankenexperiment which led Jordan to his quantization of waves published as a separate section in the famous Born-Heisenberg-Jordan 1926 "Dreim\\"annerarbeit". The thermal nature of energy fluctuations caused by the restriction of the QFT vacuum to a subvolume remained unnoticed mainly because it is not present in QM. In order to understand the analogy with Einstein's fluctuation calculation in a thermal black body system, it is important to expose the mechanism which causes a global vacuum state to become impure on a localized subalgebra of QFT. The present work presents the fascinating history behind this problem which culminated in the more recent perception that "causal localization" leads to thermal manifestations. The most appropriate concept which places this property of QFT into the forefront is "modular localization". These new developments in QFT led to a new access to the existence problem for interacting quantum fields whose solution has remained outside the range of renormalized perturbation theory. It also clarifies open problems about the relation of particles and fields in particular about the incompletely understood crossing property. Last not least it leads to a constructive understanding of integrable versus non-integrable QFTs..

Bert Schroer

2011-01-03T23:59:59.000Z

337

Bose-Einstein condensation in dark power-law laser traps  

SciTech Connect

We investigate theoretically an original route to achieve Bose-Einstein condensation using dark power-law laser traps. We propose to create such traps with two crossing blue-detuned Laguerre-Gaussian optical beams. Controlling their azimuthal order l allows for the exploration of a multitude of power-law trapping situations in one, two, and three dimensions, ranging from the usual harmonic trap to an almost square-well potential, in which a quasihomogeneous Bose gas can be formed. The usual cigar-shaped and disk-shaped Bose-Einstein condensates obtained in a 1D or 2D harmonic trap take the generic form of a 'finger' or of a 'hockey puck' in such Laguerre-Gaussian traps. In addition, for a fixed atom number, higher transition temperatures are obtained in such configurations when compared with a harmonic trap of the same volume. This effect, which results in a substantial acceleration of the condensation dynamics, requires a better but still reasonable focusing of the Laguerre-Gaussian beams.

Jaouadi, A. [Universite Paris-Sud, Institut des Sciences Moleculaires d'Orsay (ISMO), F-91405 Orsay (France); CNRS, Orsay, F-91405 France (France); Laboratoire de Spectroscopie Atomique, Moleculaire et Applications (LSAMA), Department of Physics, Faculty of Science of Tunis, University of Tunis El Manar, T-2092 Tunis (Tunisia); Gaaloul, N. [Institut fuer Quantenoptik, Welfengarten 1, Gottfried Wilhelm Leibniz Universitaet, D-30167 Hannover (Germany); Viaris de Lesegno, B.; Pruvost, L. [CNRS, Laboratoire Aime Cotton (LAC), F-91405 Orsay (France); Universite Paris-Sud, Orsay, F-91405 France (France); Telmini, M. [Laboratoire de Spectroscopie Atomique, Moleculaire et Applications (LSAMA), Department of Physics, Faculty of Science of Tunis, University of Tunis El Manar, T-2092 Tunis (Tunisia); Charron, E. [Universite Paris-Sud, Institut des Sciences Moleculaires d'Orsay (ISMO), F-91405 Orsay (France); CNRS, Orsay, F-91405 (France)

2010-08-15T23:59:59.000Z

338

THE EINSTEIN-HOME SEARCH FOR RADIO PULSARS AND PSR J2007+2722 DISCOVERY  

SciTech Connect

Einstein-Home aggregates the computer power of hundreds of thousands of volunteers from 193 countries, to search for new neutron stars using data from electromagnetic and gravitational-wave detectors. This paper presents a detailed description of the search for new radio pulsars using Pulsar ALFA survey data from the Arecibo Observatory. The enormous computing power allows this search to cover a new region of parameter space; it can detect pulsars in binary systems with orbital periods as short as 11 minutes. We also describe the first Einstein-Home discovery, the 40.8 Hz isolated pulsar PSR J2007+2722, and provide a full timing model. PSR J2007+2722's pulse profile is remarkably wide with emission over almost the entire spin period. This neutron star is most likely a disrupted recycled pulsar, about as old as its characteristic spin-down age of 404 Myr. However, there is a small chance that it was born recently, with a low magnetic field. If so, upper limits on the X-ray flux suggest but cannot prove that PSR J2007+2722 is at least {approx}100 kyr old. In the future, we expect that the massive computing power provided by volunteers should enable many additional radio pulsar discoveries.

Allen, B.; Knispel, B.; Aulbert, C.; Bock, O.; Eggenstein, H. B.; Fehrmann, H.; Machenschalk, B. [Max-Planck-Institut fuer Gravitationsphysik, D-30167 Hannover (Germany); Cordes, J. M.; Brazier, A.; Chatterjee, S. [Department of Astronomy, Cornell University, Ithaca, NY 14853 (United States); Deneva, J. S. [Arecibo Observatory, HC3 Box 53995, Arecibo, PR 00612 (United States); Hessels, J. W. T. [ASTRON, the Netherlands Institute for Radio Astronomy, Postbus 2, 7990 AA, Dwingeloo (Netherlands); Anderson, D. [Space Sciences Laboratory, University of California, Berkeley, CA 94720 (United States); Demorest, P. B. [NRAO (National Radio Astronomy Observatory), Charlottesville, VA 22903 (United States); Gotthelf, E. V. [Columbia Astrophysics Laboratory, Columbia University, New York, NY 10027 (United States); Hammer, D. [Department of Physics, University of Wisconsin-Milwaukee, Milwaukee, WI 53211 (United States); Kaspi, V. M. [Department of Physics, McGill University, Montreal, QC H3A2T8 (Canada); Kramer, M. [Max-Planck-Institut fuer Radioastronomie, D-53121 Bonn (Germany); Lyne, A. G. [Jodrell Bank Centre for Astrophysics, School of Physics and Astronomy, University of Manchester, Manchester, M13 9PL (United Kingdom); McLaughlin, M. A., E-mail: bruce.allen@aei.mpg.de [Department of Physics, West Virginia University, Morgantown, WV 26506 (United States); and others

2013-08-20T23:59:59.000Z

339

Dynamical System Analysis of Modified Chaplygin Gas in Einstein-Aether Gravity  

E-Print Network (OSTI)

In this work we investigate the background dynamics when dark energy is coupled to dark matter with a suitable interaction in the universe described by Einstein-Aether gravity. Dark energy in the form of Modified Chaplygin gas is considered. A suitable interaction between dark energy and dark matter is considered in order to at least alleviate (if not solve) the cosmic coincidence problem. The dynamical system of equations is solved numerically and a stable scaling solution is obtained. A significant attempt towards the solution of the cosmic coincidence problem is taken. The statefinder parameters are also calculated to classify the dark energy models. Graphs and phase diagrams are drawn to study the variations of these parameters. It is also seen that the background dynamics of modified Chaplygin gas in Einstein-Aether gravity is completely consistent with the notion of an accelerated expansion in the late universe. Finally, it has been shown that the universe follows the power law form of expansion around the critical point.

Chayan Ranjit; Prabir Rudra; Sujata Kundu

2014-08-19T23:59:59.000Z

340

Enhancement of spin coherence in a spin-1 Bose-Einstein condensate by dynamical decoupling approaches  

SciTech Connect

We study the enhancement of spin coherence with periodic, concatenated, or Uhrig dynamical decoupling N-pulse sequences in a spin-1 Bose-Einstein condensate, where the intrinsic dynamical instability in such a ferromagnetically interacting condensate causes spin decoherence and eventually leads to a multiple spatial-domain structure or a spin texture. Our results show that all three sequences successfully enhance the spin coherence by pushing the wave vector of the most unstable mode in the condensate to a larger value. Among the three sequences with the same number of pulses, the concatenated one shows the best performance in preserving the spin coherence. More interestingly, we find that all three sequences exactly follow the same enhancement law, k{sub -}T{sup 1/2}=c, with k{sub -} the wave vector of the most unstable mode, T the sequence period, and c a sequence-dependent constant. Such a law between k{sub -} and T is also derived analytically for an attractive scalar Bose-Einstein condensate subjected to a periodic dynamical decoupling sequence.

Ning Boyuan; Zhuang Jun; Zhang Wenxian [Key Laboratory of Micro and Nano Photonic Structures (Ministry of Education), Department of Optical Science and Engineering, Fudan University, Shanghai 200433 (China); You, J. Q. [Department of Physics, Fudan University, Shanghai 200433 (China)

2011-07-15T23:59:59.000Z

Note: This page contains sample records for the topic "albert einstein distinguished" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

Dynamical preparation of EPR entanglement in two-well Bose-Einstein condensates  

E-Print Network (OSTI)

We propose to generate Einstein-Podolsky-Rosen (EPR) entanglement between groups of atoms in a two-well Bose-Einstein condensate using a dynamical process similar to that employed in quantum optics. The local nonlinear S-wave scattering interaction has the effect of creating a spin squeezing at each well, while the tunneling, analogous to a beam splitter in optics, introduces an interference between these fields that results in an inter-well entanglement. We consider two internal modes at each well, so that the entanglement can be detected by measuring a reduction in the variances of the sums of local Schwinger spin observables. As is typical of continuous variable (CV) entanglement, the entanglement is predicted to increase with atom number, and becomes sufficiently strong at higher numbers of atoms that the EPR paradox and steering non-locality can be realized. The entanglement is predicted using an analytical approach and, for larger atom numbers, stochastic simulations based on truncated Wigner function. ...

Opanchuk, B; Reid, M D; Drummond, P D

2012-01-01T23:59:59.000Z

342

Multidimensional quantum solitons with nondegenerate parametric interactions: Photonic and Bose-Einstein condensate environments  

Science Journals Connector (OSTI)

We consider the quantum theory of three fields interacting via parametric and repulsive quartic couplings. This can be applied to treat photonic ?(2) and ?(3) interactions, and interactions in atomic Bose-Einstein condensates or quantum Fermi gases, describing coherent molecule formation together with s-wave scattering. The simplest two-particle quantum solitons or bound-state solutions of the idealized Hamiltonian, without a momentum cutoff, are obtained exactly. They have a pointlike structure in two and three dimensionseven though the corresponding classical theory is nonsingular. We show that the solutions can be regularized with a momentum cutoff. The parametric quantum solitons have much more realistic length scales and binding energies than ?(3) quantum solitons, and the resulting effects could potentially be experimentally tested in highly nonlinear optical parametric media or interacting matter-wave systems. N-particle quantum solitons and the ground state energy are analyzed using a variational approach. Applications to atomic/molecular Bose-Einstein condensates (BECs) are given, where we predict the possibility of forming coupled BEC solitons in three space dimensions, and analyze superchemistry dynamics.

K. V. Kheruntsyan and P. D. Drummond

2000-05-17T23:59:59.000Z

343

EINSTEIN'S "METAMATHEMATICS"  

Science Journals Connector (OSTI)

......the final analysis, has to yield to the law of contradic-tion, which is inherent in every scientific system. It may suc-ceed in discarding metaphysics only to replace it with mathe-matics.165-166 My treatment of this subject is on the philosophical......

Alexander S. Kohanski

1973-01-01T23:59:59.000Z

344

Distinguished Mathematics Professors Named  

E-Print Network (OSTI)

Thus, a successful system needs to use floating-point arithmetic for testing whether answers ... transformed into the floating-point number nearest to .1, which is.

2005-06-02T23:59:59.000Z

345

Zerkle wins Governor's Distinguished  

NLE Websites -- All DOE Office Websites (Extended Search)

and children's welfare. She is the codirector of the annual Tour de Los Alamos bicycle race, now in its 38th year. Last year's tour drew more than 200 cyclists, benefiting...

346

Reply to "Comment on `Stimulated Raman adiabatic passage from an atomic to a molecular Bose-Einstein condensate' "  

E-Print Network (OSTI)

to no efficiency improvement compared to our high-density case. In a more careful analysis including radiative-Einstein condensate' " P. D. Drummond and K. V. Kheruntsyan ARC Centre of Excellence for Quantum-Atom Optics January 2005 In the preceding Comment, the authors suggest that the molecular conversion efficiency

Queensland, University of

347

Holographic Storage of Multiple Coherence Gratings in a Bose-Einstein Condensate Yutaka Yoshikawa,1,2,* Kazuyuki Nakayama,2  

E-Print Network (OSTI)

of the condensate, a high conversion efficiency of >70% and a long storage time of >120 s were achieved. DOI: 10Holographic Storage of Multiple Coherence Gratings in a Bose-Einstein Condensate Yutaka Yoshikawa,1 in an elongated cloud of Bose-condensed atoms. Two off-resonant write beams induce superradiant Raman scattering

Torii, Yoshio

348

Shear Viscosity to Entropy Density for a Black Brane in 5-dimensional Einstein-Yang-Mills Gravity  

E-Print Network (OSTI)

We calculate the ratio of shear viscosity to entropy density for a black brane of $5$-dimensional Einstein-Yang-Mills Gravity. There is a well- known conjecture that this ratio should be larger than $\\frac{1}{4\\pi}$ and we show that this bound preserves in this black brane.

Sadeghi, Mehdi

2014-01-01T23:59:59.000Z

349

Shear Viscosity to Entropy Density for a Black Brane in 5-dimensional Einstein-Yang-Mills Gravity  

E-Print Network (OSTI)

We calculate the ratio of shear viscosity to entropy density for a black brane of $5$-dimensional Einstein-Yang-Mills Gravity. There is a well- known conjecture that this ratio should be larger than $\\frac{1}{4\\pi}$ and we show that this bound preserves in this black brane.

Mehdi Sadeghi; Shahrokh Parvizi

2014-11-10T23:59:59.000Z

350

Modulational instability of two-component Bose-Einstein condensates in a quasi-one-dimensional geometry  

Science Journals Connector (OSTI)

A simple treatment is presented to analyze the modulational instability of two-component Bose-Einstein condensates, described within the Gross-Pitaevskii approximation, in a quasi-one-dimensional geometry. An explicit expression for the growth rate of a purely growing modulational instability is presented and analyzed analytically.

T. Soloman Raju; Prasanta K. Panigrahi; K. Porsezian

2005-03-28T23:59:59.000Z

351

COLD ATOMS AND CREATION OF NEW STATES OF MATTER: BOSE-EINSTEIN CONDENSATES, KAPITZA STATES, AND '2D MAGNETIC  

E-Print Network (OSTI)

COLD ATOMS AND CREATION OF NEW STATES OF MATTER: BOSE- EINSTEIN CONDENSATES, KAPITZA STATES, AND '2D MAGNETIC HYDROGEN ATOMS' LENE VESTERGAARD HAU, B. D. BUSCH, CHIEN LIU, MICHAEL M. BURNS, AND J. A, Electronic and Atomic Collisions (Invited papers of the Twentieth International Conference on the Physics

Hau, Lene Vestergaard

352

hal-00110808,version1-2Nov2006 Bose-Einstein condensates and EPR quantum non-locality  

E-Print Network (OSTI)

hal-00110808,version1-2Nov2006 Bose-Einstein condensates and EPR quantum non-locality F. Lalo The EPR argument points to the existence of additional variables that are necessary to complete standard systems, independently of the macroscopic measurement apparatus. Here, we transpose the EPR argument

Paris-Sud XI, Université de

353

Observation of Hybrid Soliton Vortex-Ring Structures in Bose-Einstein Condensates Naomi S. Ginsberg,1,* Joachim Brand,2  

E-Print Network (OSTI)

-Einstein condensates. We examine both their creation via soliton-vortex collisions and their subsequent development into vortex rings (VRs) [7,8] via the Kadomtsev-Petviashvili, or ``snake,'' instability [9]. In this Letter frequencies !z 2 21 Hz and !x !y 3:0!z in our 4-Dee magnetic trap [14]. We work at temperatures well below

Hau, Lene Vestergaard

354

Einstein's Dream of Unified Forces - extra dimensions | U.S. DOE Office  

Office of Science (SC) Website

Are there extra dimensions of space? Are there extra dimensions of space? The Tevatron .jpg file (220KB) At Fermilab's Tevatron, physicists study such exotic phenomena as extra dimensions, paving the way for scientific discoveries. The revolutionary concept of string theory is a bold realization of Einstein's dream of an ultimate explanation for everything from the tiniest quanta of particle physics to the cosmos itself. String theory unifies physics by producing all known forces and particles as different vibrations of a single substance called superstrings. String theory brings quantum consistency to physics with an elegant mathematical construct that appears to be unique. Do superstrings exist? The strings themselves are probably too tiny to observe directly, but string theory makes a number of testable predictions.

355

Einstein's Dream of Unified Forces | U.S. DOE Office of Science (SC)  

Office of Science (SC) Website

Since Einstein, physicists have sought a unified theory to explain all the fundamental forces and particles in the universe. The result is a stunningly successful theory that reduces the complexity of microscopic physics to a set of concise laws. But these same quantum ideas fail when applied to cosmic physics. Some fundamental piece is missing; gravity, dark matter and dark energy must have quantum explanations. A new theoretical vision is required, one that embraces the Standard Model and general relativity, while resolving the mystery of dark energy. Particle accelerators provide the means to reach a unified theoretical perspective in experiments characterized by four well-defined intellectual thrusts Are there undiscovered principles of nature: new symmetries, new

356

Superfluidity of Bose-Einstein condensates in toroidal traps with nonlinear lattices  

SciTech Connect

Superfluid properties of Bose-Einstein condensates (BEC) in toroidal quasi-one-dimensional traps are investigated in the presence of periodic scattering length modulations along the ring. The existence of several types of stable periodic waves, ranging from almost uniform to very fragmented chains of weakly interacting and equally spaced solitons, is demonstrated. We show that these waves may support persistent atomic currents and sound waves with spectra of Bogoliubov type. Fragmented condensates can be viewed as arrays of Josephson junctions and the current as a BEC manifestation of the dc-Josephson effect. The influence of linear defects on BEC superfluidity has been also investigated. We found that for subcritical velocities, linear defects that are static with respect to the lattice (while the condensate moves in respect to both the optical lattice and the defect) preserve the BEC superfluidity.

Yulin, A. V.; Konotop, V. V. [Centro de Fisica Teorica e Computacional and Departamento de Fisica, Faculdade de Ciencias, Universidade de Lisboa, Avenida Professor Gama Pinto 2, P-1649-003 Lisbon (Portugal); Bludov, Yu. V. [Centro de Fisica, Universidade do Minho, Campus de Gualtar, P-4710-057 Braga (Portugal); Kuzmiak, V. [Institute for Photonics and Electronic of Czech Academy of Science, Chaberska 57, CZ-182 51 Praha 8 (Czech Republic); Salerno, M. [Dipartimento di Fisica ''E.R. Caianiello'', Universita di Salerno, via ponte don Melillo, I-84084 Fisciano (Italy)

2011-12-15T23:59:59.000Z

357

A VLT colour image of the optical Einstein ring 0047-2808  

E-Print Network (OSTI)

The optical Einstein ring 0047-2808 was imaged by the VLT UT1 during the science verification programme. The ring is the image of a high-redshift z=3.595 star-forming galaxy, with strong Ly-alpha emission at 5589A, gravitationally lensed by a massive early-type galaxy at z=0.485. Relative to earlier NTT data the high signal-to-noise ratio of the VLT Ly-alpha narrow-band image allows much improved constraints to be placed on the surface-brightness profile of the source and on the mass, leading to a measured mass-to-light ratio of M/L(B)~13h for the deflector galaxy. We have combined the VLT B-band and Ly-alpha narrow-band images with a K-band image obtained at UKIRT to produce a deep colour image of the system.

S. J. Warren; G. F. Lewis; P. C. Hewett; P. Moller; P. Shaver; A. Iovino

1999-01-20T23:59:59.000Z

358

Collective dynamics and expansion of a Bose-Einstein condensate in a random potential  

SciTech Connect

We investigate the dynamics of a Bose-Einstein condensate in the presence of a random potential created by optical speckles. We first consider the effect of a weak disorder on the dipole and quadrupole collective oscillations, finding uncorrelated frequency shifts of the two modes with respect to the pure harmonic case. This behavior, predicted by a sum-rules approach, is confirmed by the numerical solution of the Gross-Pitaevskii equation. Then we analyze the role of disorder on the one-dimensional expansion in an optical guide, discussing possible localization effects. Our theoretical analysis provides a useful insight into the recent experiments performed at LENS [J. E. Lye, L. Fallani, M. Modugno, D. S. Wiersma, C. Fort, and M. Inguscio, Phys. Rev. Lett. 95, 070401 (2005); C. Fort, L. Fallani, V. Guarrera, J. E. Lye, M. Modugno, D. S. Wiersma, and M. Inguscio, Phys. Rev. Lett. 95, 170410 (2005)].

Modugno, Michele [Dipartimento di Matematica Applicata, Universita di Firenze, I-50139 Florence (Italy) and LENS and INFM, Universita di Firenze, I-50019 Sesto Fiorentino, FI (Italy) and BEC-INFM Center, Universita di Trento, I-38050 Povo, TN (Italy)

2006-01-15T23:59:59.000Z

359

Measurements of acoustic EinsteinHopf drag on objects undergoing volume oscillations  

Science Journals Connector (OSTI)

It has been shown theoretically that the drag on an object undergoing volume oscillations can be modified by the presence of isotropic homogeneous broadband acoustic noise when the band overlaps the objects resonance width [Larraza and Tucholski Phys. Rev. Lett. 84 23782380 (2000)]. These results constitute an acoustic analog to the EinsteinHopf drag on an oscillating dipole in the presence of electromagnetic fluctuations. However an important difference is that band?limited acoustic noise can reduce the drag when the lower frequency of the spectrum coincides with the resonant frequency of the object. Experimental results of the drag measured on bubbles and aerogel spheres moving in an band?limited noise field are reported.

2001-01-01T23:59:59.000Z

360

Bose-Einstein condensation and heat capacity of two-dimensional spin-polarized atomic hydrogen  

SciTech Connect

The static fluctuation approximation (SFA) is used to study the condensate fraction and the specific heat capacity of finite two-dimensional spin-polarized atomic hydrogen. It is found that Bose-Einstein condensation occurs in this system. The transition temperature at different densities decreases as the number of particles of the system increases. At low density, a sharp peak in the specific heat capacity is observed at the transition temperature. On the other hand, as the density of the system increases, the transition temperature becomes no longer well-defined, and a hump is observed in the specific heat capacity around the transition temperature. A qualitative comparison of our results to published results for finite Bose systems shows good agreement.

Al-Sugheir, M. K. [Department of Physics, Hashemite University, Zarqa (Jordan); Ghassib, H. B. [Department of Physics, University of Jordan, Amman (Jordan); Awawdeh, M. [Department of Physics, Yarmouk University, Irbid (Jordan)

2011-07-15T23:59:59.000Z

Note: This page contains sample records for the topic "albert einstein distinguished" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Dissipative dynamics of the Josephson effect in binary Bose-Einstein-condensed mixtures  

SciTech Connect

The dissipative dynamics of a pointlike Josephson junction in binary Bose-Einstein-condensed mixtures is analyzed within the framework of the model of a tunneling Hamiltonian. The transmission of unlike particles across a junction is described by the different transmission amplitudes. The effective action that describes the dynamics of the phase differences across the junction for each of two condensed components is derived by employing the functional integration method. In the low-frequency limit the dynamics of a Josephson junction can be described by two coupled equations in terms of the potential energy and dissipative Rayleigh function using a mechanical analogy. The interplay between mass currents of each mixture component appears in the second-order term in the tunneling amplitudes due to the interspecies hybridizing interaction. The asymmetric case of the binary mixtures with different concentrations and order parameters is considered as well.

Burmistrov, S. N. [Kurchatov Institute, RU-123182 Moscow (Russian Federation)

2011-06-15T23:59:59.000Z

362

Energy-band structure and intrinsic coherent properties in two weakly linked Bose-Einstein condensates  

SciTech Connect

The energy-band structure and energy splitting due to quantum tunneling in two weakly linked Bose-Einstein condensates were calculated by using the instanton method. The intrinsic coherent properties of Bose-Josephson junction (BJJ) were investigated in terms of energy splitting. For E{sub C}/E{sub J}<<1, the energy splitting is small and the system is globally phase coherent. In the opposite limit, E{sub C}/E{sub J}>>1, the energy splitting is large and the system becomes phase dissipated. Our results suggest that one should investigate the coherence phenomena of BJJ in proper condition such as E{sub C}/E{sub J}{approx}1.

Li, Wei-Dong; Liang, J.-Q. [Department of Physics and Institute of Theoretical Physics, Shanxi University, Taiyuan 030006, (China); Zhang, Yunbo [Department of Physics and Institute of Theoretical Physics, Shanxi University, Taiyuan 030006, (China); Department of Physics, University of Turku, FIN-20014 Turun yliopisto, (Finland)

2003-06-01T23:59:59.000Z

363

Einstein gravity as the thermodynamic limit of an underlying quantum statistics  

E-Print Network (OSTI)

The black hole area theorem suggests that classical general relativity is the thermodynamic limit of a quantum statistics. The degrees of freedom of the statistical theory cannot be the spacetime metric. We argue that the statistical theory should be constructed from a noncommutative gravity, whose classical, and thermodynamic, approximation is Einstein gravity. The noncommutative gravity theory exhibits a duality between quantum fields and macroscopic black holes, which is used to show that the black hole possesses an entropy of the order of its area. The principle on which this work is based also provides a possible explanation for the smallness of the cosmological constant, and for the quantum measurement problem, indicating that this is a promising avenue towards the merger of quantum mechanics and gravity.

T. P. Singh

2009-05-15T23:59:59.000Z

364

OCTBEC - A Matlab toolbox for optimal quantum control of Bose-Einstein condensates  

E-Print Network (OSTI)

OCTBEC is a Matlab toolbox designed for optimal quantum control, within the framework of optimal control theory (OCT), of Bose-Einstein condensates (BEC). The systems we have in mind are ultracold atoms in confined geometries, where the dynamics takes place in one or two spatial dimensions, and the confinement potential can be controlled by some external parameters. Typical experimental realizations are atom chips, where the currents running through the wires produce magnetic fields that allow to trap and manipulate nearby atoms. The toolbox provides a variety of Matlab classes for simulations based on the Gross-Pitaevskii equation, the multi-configurational Hartree method for bosons, and on generic few-mode models, as well as optimization problems. These classes can be easily combined, which has the advantage that one can adapt the simulation programs flexibly for various applications.

Ulrich Hohenester

2013-09-22T23:59:59.000Z

365

Boundary conditions for the Baumgarte-Shapiro-Shibata-Nakamura formulation of Einstein's field equations  

SciTech Connect

We discuss the initial-boundary value problem for the Baumgarte-Shapiro-Shibata-Nakamura evolution system of Einstein's field equations which has been used extensively in numerical simulations of binary black holes and neutron stars. We specify nine boundary conditions for this system with the following properties: (i) they impose the momentum constraint at the boundary, which is shown to preserve all the constraints throughout evolution; (ii) they approximately control the incoming gravitational degrees of freedom by specifying the Weyl scalar {Psi}{sub 0} at the boundary; (iii) they control the gauge freedom by requiring a Neumann boundary condition for the lapse, by setting the normal component of the shift to zero, and by imposing a Sommerfeld-like condition on the tangential components of the shift; and (iv) they are shown to yield a well-posed problem in the limit of weak gravity. Possible numerical applications of our results are also discussed briefly.

Nunez, Dario [Instituto de Ciencias Nucleares, Universidad Nacional Autonoma de Mexico, Apartado Postal 70-543, Ciudad Universitaria, 04510 Mexico, Distrito Federal (Mexico); Sarbach, Olivier [Instituto de Fisica y Matematicas, Universidad Michoacana de San Nicolas de Hidalgo, Edificio C-3, Ciudad Universitaria, 58040 Morelia, Michoacan (Mexico)

2010-02-15T23:59:59.000Z

366

Holes in the static Einstein universe and a model of the cosmological voids  

SciTech Connect

A spherically symmetric, static model of the cosmological voids is constructed in the framework of the Tolman-Oppenheimer-Volkov equation with the cosmological constant. Extension of the Tooper result (dimensionless form of the TOV equation) is provided for nonzero {lambda}. Then, the equation is simplified in {alpha}{yields}0, {lambda}{yields}0, and {lambda}/{alpha}=const regime, suitable for largest structures in {lambda}-dominated universe. Voids are treated as underdensity regions in the static Einstein universe. Both overdensity and underdensity (relative to static universe) solutions exist. They are identified with standard astrophysical spherical objects and voids, respectively. The model is tested against observed properties (the radius - the central density relation) and density profiles of voids. Analytical formulas for radial density contrast profile and radii of the voids are derived. Some consequences for cosmological N-body simulations are suggested. Hints on the dark matter/dark energy EOS filling the voids are provided.

Odrzywolek, Andrzej [M. Smoluchowski Institute of Physics, Jagiellonian University, Reymonta 4, 30-059 Krakow (Poland)

2009-11-15T23:59:59.000Z

367

Multipartite Einstein-Podolsky-Rosen steering and genuine tripartite entanglement with optical networks  

E-Print Network (OSTI)

The Einstein-Podolsky-Rosen (EPR) paradox established a link between entanglement and nonlocality in quantum mechanics. EPR steering is the nonlocality associated with the EPR paradox and has traditionally only been investigated between two parties. Here, we present the first experimental observations of multipartite EPR steering, and of the genuine tripartite continuous variable entanglement of three mesoscopic optical systems. We explore different linear optics networks - each one with optimised asymmetries - that create multipartite steerable states containing different numbers of quantised optical modes (qumodes). By introducing asymmetric loss on a 7-qumode state, we characterize 8 regimes of directional steering, showing that N + 1 regimes exist for an N-qumode state. Further, we reveal the directional monogamy of steering, and experimentally demonstrate continuous variable one-sided semi device-independent quantum secret sharing. Our methods establish principles for the development of multiparty quantum communication protocols with asymmetric observers, and can be extended to qubits, whether photonic, atomic, superconducting, or otherwise.

Seiji Armstrong; Meng Wang; Run Yan Teh; Qihuang Gong; Qiongyi He; Jiri Janousek; Hans-Albert Bachor; Margaret D. Reid; Ping Koy Lam

2014-12-22T23:59:59.000Z

368

BoseEinstein condensation transition studies for atoms confined in LaguerreGaussian laser modes  

Science Journals Connector (OSTI)

Multiply-connected traps for cold, neutral atoms fix vortex cores of quantum gases. LaguerreGaussian laser modes are ideal for such traps due to their phase stability. We report theoretical calculations of the BoseEinstein condensation transition properties and thermal characteristics of neutral atoms trapped in multiply connected geometries formed by LaguerreGaussian (LGpl) beams. Specifically, we consider atoms confined to the anti-node of a LG01 laser mode detuned to the red of an atomic resonance frequency, and those confined in the node of a blue-detuned LG11 beam. We compare the results of using the full potential to those approximating the potential minimum with a simple harmonic oscillator potential. We find that deviations between calculations of the full potential and the simple harmonic oscillator can be up to 3%8% for trap parameters consistent with typical experiments.

T.G. Akin; Sharon Kennedy; Ben Dribus; Jeremy L. Marzuola; Lise Johnson; Jason Alexander; E.R.I. Abraham

2012-01-01T23:59:59.000Z

369

Critical behaviors of black holes in the Einstein-Maxwell gravity with conformal anomaly  

E-Print Network (OSTI)

We study $P-V$ critical behavior of 4-dimensional AdS black hole in the Einstein-Maxwell gravity with conformal anomaly by treating the cosmological constant as a variable related to the thermodynamic pressure. It shows that there is no phase transition if taking $k=0$ or -1. When the charge $q_1$ of conformal field and the coefficient $\\alpha$ satisfy a certain relation, the Van der Waal like phase transition for the spherical black hole can occur in case of the temperature is lower than the small critical temperature or higher than the large one. We also evaluate the critical exponents of the phase transitions and find that the thermodynamic exponents associated with this 4-dimensional AdS black hole coincide with those of the van der Waals fluid.

Zhang, Ming; Yang, Zhan-Ying

2014-01-01T23:59:59.000Z

370

An approximate global solution of Einstein's equations for a finite body  

E-Print Network (OSTI)

We obtain an approximate global stationary and axisymmetric solution of Einstein's equations which can be considered as a simple star model: a self-gravitating perfect fluid ball with constant mass density rotating in rigid motion. Using the post-Minkowskian formalism (weak-field approximation) and considering rotation as a perturbation (slow-rotation approximation), we find approximate interior and exterior (asymptotically flat) solutions to this problem in harmonic and quo-harmonic coordinates. In both cases, interior and exterior solutions are matched, in the sense of Lichnerowicz, on the surface of zero pressure to obtain a global solution. The resulting metric depends on three arbitrary constants: mass density, rotational velocity and the star radius at the non-rotation limit. The mass, angular momentum, quadrupole moment and other constants of the exterior metric are determined by these three parameters. It is easy to show that this type of fluid cannot be a source of the Kerr metric

J. A. Cabezas; J. Martin-Martin; A. Molina; E. Ruiz

2006-11-02T23:59:59.000Z

371

Local realism and measured correlations in the spin-s Einstein-Podolsky-Rosen experiment  

Science Journals Connector (OSTI)

Two aspects of the Clauser-Horne conditions for the compatibility with local realism of measured spin- Einstein-Podolsky-Rosen correlations are investigated in the spin-s case. (1) A new set of necessary conditions is given for compatibility with local realism. These conditions are violated for a large range of geometries. The range does not diminish with increasing s, if the observed correlations are sufficiently near to the quantum-theoretic predictions. (2) A simple counterexample is given to the spin-1 generalization of a recent conjecture that the conditions tested by the Clauser-Horne spin- inequalities are sufficient as well as necessary for compatibility of the data with local realism.

Anupam Garg and N. D. Mermin

1983-01-15T23:59:59.000Z

372

Full counting statistics of the interference contrast from independent Bose-Einstein condensates  

Science Journals Connector (OSTI)

We show that the visibility in interference experiments with Bose-Einstein condensates is directly related to the condensate fraction. The probability distribution of the contrast over many runs of an interference experiment thus gives the full counting statistics of the condensed atom number. For two-dimensional Bose gases, we discuss the universal behavior of the probability distribution in the superfluid regime and provide analytical expressions for the distributions for both homogeneous and harmonically trapped samples. They are non-Gaussian and unimodal with a variance that is directly related to the superfluid density. In general, the visibility is a self-averaging observable only in the presence of long-range phase coherence. Close to the transition temperature, the visibility distribution reflects the universal order-parameter distribution in the vicinity of the critical point.

Steffen Patrick Rath and Wilhelm Zwerger

2010-11-19T23:59:59.000Z

373

Signals of Bose Einstein condensation and Fermi quenching in the decay of hot nuclear systems  

E-Print Network (OSTI)

We report experimental signals of Bose-Einstein condensation in the decay of hot Ca projectile-like sources produced in mid-peripheral collisions at sub-Fermi energies. The experimental setup, constituted by the coupling of the INDRA 4$\\pi$ detector array to the forward angle VAMOS magnetic spectrometer, allowed us to reconstruct the mass, charge and excitation energy of the decaying hot projectile-like sources. Furthermore, by means of quantum fluctuation analysis techniques, temperatures and mean volumes per particle "as seen by" bosons and fermions separately are correlated to the excitation energy of the reconstructed system. The obtained results are consistent with the production of dilute mixed (bosons/fermions) systems, where bosons experience a smaller volume as compared to the surrounding fermionic gas. Our findings recall similar phenomena observed in the study of boson condensates in atomic traps.

Marini, P; Boisjoli, M; Verde, G; Chbihi, A; Ademard, G; Auger, L; Bhattacharya, C; Borderie, B; Bougault, R; Frankland, J; Galichet, E; Gruyer, D; Kundu, S; La Commara, M; Lombardo, I; Lopez, O; Mukherjee, G; Napolitani, P; Parlog, M; Rivet, M F; Rosato, E; Roy, R; Spadaccini, G; Vigilante, M; Wigg, P C; Bonasera, A

2015-01-01T23:59:59.000Z

374

Collapse dynamics of a Yb176-Yb174 Bose-Einstein condensate  

Science Journals Connector (OSTI)

In this paper, we present a theoretical study of a two-component Bose-Einstein condensate composed of ytterbium (Yb) isotopes in a three-dimensional anisotropic harmonic potential. The condensate consists of a mixture of Yb176 atoms which have a negative s-wave scattering length and Yb174 atoms having a positive s-wave scattering length. We study the ground-state as well as dynamic properties of this two-component condensate. Due to the attractive interactions between Yb176 atoms, the condensate of Yb176 undergoes a collapse when the particle number exceeds a critical value. The critical number and the collapse dynamics are modified due to the presence of Yb174 atoms. We use coupled two-component Gross-Pitaevskii equations to study the collapse dynamics. The theoretical results obtained are in reasonable agreement with the experimental results of Fukuhara et al. [Phys. Rev. A 79, 021601(R) (2009)].

G. K. Chaudhary and R. Ramakumar

2010-06-02T23:59:59.000Z

375

Planck Scale Induced Speed of Sound in a Trapped Bose-Einstein Condensate  

E-Print Network (OSTI)

In the present work, we analyze the corrections caused by an anomalous dispersion relation, suggested in several quantum gravity models, upon the speed of sound in a weakly interacting Bose--Einstein Condensate, trapped in a potential of the form $V(r)\\sim r^{2}$. We show that the corresponding ground state energy and consequently, the associated speed of sound, present corrections respect to the usual case, which may be used to explore the sensitivity to Planck--scale effects on these relevant properties associated with the condensate. Indeed, we stress that this type of macroscopic bodies may be more sensitive, under certain conditions, to Planck--scale manifestations than its constituents. In addition, we prove that the inclusion of a trapping potential, together with many--body contributions, improves the sensitivity to Planck--scale signals, compared to the homogeneous system.

E. Castellanos; J. I. Rivas; V. Domnguez-Rocha

2014-07-11T23:59:59.000Z

376

Signals of Bose Einstein condensation and Fermi quenching in the decay of hot nuclear systems  

E-Print Network (OSTI)

We report experimental signals of Bose-Einstein condensation in the decay of hot Ca projectile-like sources produced in mid-peripheral collisions at sub-Fermi energies. The experimental setup, constituted by the coupling of the INDRA 4$\\pi$ detector array to the forward angle VAMOS magnetic spectrometer, allowed us to reconstruct the mass, charge and excitation energy of the decaying hot projectile-like sources. Furthermore, by means of quantum fluctuation analysis techniques, temperatures and mean volumes per particle "as seen by" bosons and fermions separately are correlated to the excitation energy of the reconstructed system. The obtained results are consistent with the production of dilute mixed (bosons/fermions) systems, where bosons experience a smaller volume as compared to the surrounding fermionic gas. Our findings recall similar phenomena observed in the study of boson condensates in atomic traps.

P. Marini; H. Zheng; M. Boisjoli; G. Verde; A. Chbihi; G. Ademard; L. Auger; C. Bhattacharya; B. Borderie; R. Bougault; J. Frankland; E. Galichet; D. Gruyer; S. Kundu; M. La Commara; I. Lombardo; O. Lopez; G. Mukherjee; P. Napolitani; M. Parlog; M. F. Rivet; E. Rosato; R. Roy; G. Spadaccini; M. Vigilante; P. C. Wigg; A. Bonasera

2015-01-03T23:59:59.000Z

377

Chaotic behavior of three interacting vortices in a confined Bose-Einstein condensate  

E-Print Network (OSTI)

Motivated by recent experimental works, we investigate a system of vortex dynamics in an atomic Bose-Einstein condensate (BEC), consisting of three vortices, two of which have the same charge. These vortices are modeled as a system of point particles which possesses a Hamiltonian structure. This tripole system constitutes a prototypical model of vortices in BECs exhibiting chaos. By using the angular momentum integral of motion we reduce the study of the system to the investigation of a two degree of freedom Hamiltonian model and acquire quantitative results about its chaotic behavior. Our investigation tool is the construction of scan maps by using the Smaller ALignment Index (SALI) as a chaos indicator. Applying this approach to a large number of initial conditions we manage to accurately and efficiently measure the extent of chaos in the model and its dependence on physically important parameters like the energy and the angular momentum of the system.

Nikos Kyriakopoulos; Vassilis Koukouloyannis; Charalampos Skokos; Panayotis Kevrekidis

2014-05-14T23:59:59.000Z

378

Bose-Einstein Condensation on a Manifold with Nonnegative Ricci Curvature  

E-Print Network (OSTI)

The Bose-Einstein condensation for an ideal Bose gas and for a dilute weakly interacting Bose gas in a manifold with nonnegative Ricci curvature is investigated using the heat kernel and eigenvalue estimates of the Laplace operator. The main focus is on the nonrelativistic gas. However, special relativistic ideal gas is also discussed. The thermodynamic limit of the heat kernel and eigenvalue estimates is taken and the results are used to derive bounds for the depletion coefficient. In the case of a weakly interacting gas Bogoliubov approximation is employed. The ground state is analyzed using heat kernel methods and finite size effects on the ground state energy are proposed. The justification of the c-number substitution on a manifold is given.

Levent Akant; Emine Ertugrul; Ferzan Tapramaz; O. Teoman Turgut

2014-03-28T23:59:59.000Z

379

Domain wall model in the galactic Bose-Einstein condensate halo  

SciTech Connect

We assume that the galactic dark matter halo, considered composed of an axionlike particles Bose-Einstein condensate [1], can present topological defects, namely domain walls, arising as the dark soliton solution for the Gross-Pitaevskii equation in a self-graviting potential. We investigate the influence that such substructures would have in the gravitational interactions within a galaxy. We find that, for the simple domain wall model proposed, the effects are too small to be identified, either by means of a local measurement of the gradient of the gravitational field or by analysing galaxy rotation curves. In the first case, the gradient of the gravitational field in the vicinity of the domain wall would be 10{sup ?31} (m/s{sup 2})/m. In the second case, the ratio of the tangential velocity correction of a star due to the presence of the domain wall to the velocity in the spherical symmetric case would be 10{sup ?8}.

Souza, J.C.C. de; Pires, M.O.C., E-mail: jose.souza@ufabc.edu.br, E-mail: marcelo.pires@ufabc.edu.br [Centro de Cincias Naturais e Humanas, Universidade Federal do ABC, Rua Santa Adlia 166, 09210-170, Santo Andr, SP (Brazil)

2013-05-01T23:59:59.000Z

380

Topology of the ground state of two interacting Bose-Einstein condensates  

Science Journals Connector (OSTI)

We investigate the spatial patterns of the ground state of two interacting Bose-Einstein condensates. We consider the general case of two different atomic species (with different mass and in different hyperfine states) trapped in a magnetic potential whose eigenaxes can be tilted with respect to the vertical direction, giving rise to a nontrivial gravitational sag. Despite the complicated geometry, we show that within the Thomas-Fermi approximations and upon appropriate coordinate transformations, the equations for the density distributions can be put into a very simple form. Starting from these expressions we give explicit rules to classify the different spatial topologies that can be produced, and we discuss how the behavior of the system is influenced by the interatomic scattering length. We also compare explicit examples with the full numeric Gross-Pitaevskii calculation.

Francesco Riboli and Michele Modugno

2002-06-13T23:59:59.000Z

Note: This page contains sample records for the topic "albert einstein distinguished" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
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381

Impurities as a quantum thermometer for a Bose-Einstein condensate  

E-Print Network (OSTI)

We introduce a primary thermometer which measures the temperature of a Bose-Einstein Condensate in the sub-nK regime. We show, using quantum Fisher information, that the precision of our technique improves the state-of-the-art in thermometry in the sub-nK regime. The temperature of the condensate is mapped onto the quantum phase of an atomic dot that interacts with the system for short times. We show that the highest precision is achieved when the phase is dynamical rather than geometric and when it is detected through Ramsey interferometry. Standard techniques to determine the temperature of a condensate involve an indirect estimation through mean particle velocities made after releasing the condensate. In contrast to these destructive measurements, our method involves a negligible disturbance of the system.

Carlos Sabn; Angela White; Lucia Hackermuller; Ivette Fuentes

2014-09-22T23:59:59.000Z

382

Nonlinear Zeno dynamics due to atomic interactions in Bose-Einstein condensate  

E-Print Network (OSTI)

We show that nonlinear interactions induce both the Zeno and anti-Zeno effects in the generalised Bose-Josephson model (with the on-site interactions and the second-order tunneling) describing Bose-Einstein condensate in double-well trap subject to particle removal from one of the wells. We find that the on-site interactions induce \\textit{only} the Zeno effect, which appears at long evolution times, whereas the second-order tunneling leads to a strong decay of the atomic population at short evolution times, reminiscent of the anti-Zeno effect, and destroys the nonlinear Zeno effect due to the on-site interactions at long times.

V. G. Navarro; V. S. Shchesnovich

2014-09-03T23:59:59.000Z

383

Self-gravitation of massive charge and the Einstein-Maxwell electron radius  

E-Print Network (OSTI)

The existence of stable, charged elementary 'point particles' still is a basically unsolved puzzle in theoretical physics. E.g., in quantum electrodynamics the infinite self-energy of the Dirac point electron is 'swept under the carpet' by renormalizing its mass. The present work takes a fresh look at the problem by including gravity - without resorting to string theory. Using Einstein's equations for the gravitational fields in a general static isotropic metric with the full energy-momentum tensor (for the charged material mass and the electromagnetic fields) as the source term, an exact solution with a well-defined characteristic radius emerges where mass and charge accumulate: $r_{\\rm c}{=}\\sqrt{r_{\\rm e}r_o/2}$ - with $r_{\\rm e}{=}e^2\\!/4\\pi\\epsilon_omc^2{\\approx}10^{-15}$m being the 'classical' electron radius and where $r_o{=}2mG/c^2{\\approx}10^{-57}$m is the Schwarzschild radius belonging to the observable mass $m{\\approx}10^{-30}$kg. The novel 'Einstein-Maxwell' gravitational electron radius can also be written as $r_{\\rm c}{=}\\ell_{\\rm P}\\sqrt{\\alpha_{\\rm e}}$, where $\\ell_{\\rm P}{=}\\sqrt{\\hbar G/c^3}{\\approx}10^{-35}$m is the fundamental Planck length and $\\alpha_{\\rm e}{=}e^2\\!/4\\pi\\epsilon_o\\hbar c{\\approx}1/137$ the fine-structure constant, which yields $r_{\\rm c}^{\\rm electron}{=}1.38063{\\times}10^{-36}$m. The implied absence of infinite mass renormalization opens up new perspectives for unifying non-gravitational quantum theory and non-renormalizable general relativity. PACS: 04.20.Cv, 04.20.-q, 04.40.Nr, 11.10.Gh

H. Dekker

2014-08-20T23:59:59.000Z

384

COS DCE BOOT FSW v1.09 Component Test Results Requirement 5.1.1.2 Distinguish between Power-Up and Watchdog Resets  

E-Print Network (OSTI)

COS DCE BOOT FSW v1.09 Component Test Results Requirement 5.1.1.2 Distinguish between Power. Brownsberger 2-13-01 The Center for Astrophysics and Space Astronomy Reviewed: Approved: COS DCE BOOT FSW v1 for Astrophysics & Space Astronomy Initial Release COS DCE BOOT FSW v1.09 Component Test Results Requirement 5

Colorado at Boulder, University of

385

COS DCE BOOT FSW v1.13 Component Test Results Requirement 5.1.1.2 Distinguish Between Power-up and Watchdog Resets  

E-Print Network (OSTI)

COS DCE BOOT FSW v1.13 Component Test Results Requirement 5.1.1.2 Distinguish Between Power. Brownsberger 2-13-01 The Center for Astrophysics and Space Astronomy Reviewed: Approved: COS DCE BOOT FSW v1 for Astrophysics & Space Astronomy Initial Release COS DCE BOOT FSW v1.13 Component Test Results Requirement 5

Colorado at Boulder, University of

386

Contents|Director's Message 2|Honors and Awards 3|Project 4|Distinguished Lecture 6|Activities 7| Lab Profile 8|Project 10|Great Idea 12|Spotlight 14  

E-Print Network (OSTI)

in order to meet the big data challenges of bioinformatics. The Spotlight section describes Distinguished Council, the 2013 Outstanding Young Electrical Engineer Award from the Chinese Institute of Electrical of Information & Computing Machinery. Dr. De-Nian Yang receiving the Outstanding Youth Electrical Engineer Award

Chen, Sheng-Wei

387

Occupants are in italics to distinguish them from building names; they are shown against the building housing their main reception. Highlighted buildings are those pictured overleaf.  

E-Print Network (OSTI)

Occupants are in italics to distinguish them from building names; they are shown against the building housing their main reception. Highlighted buildings are those pictured overleaf. If you have a question or comment about the accessibility of the buildings or grounds at the University of Leeds, email

Haase, Markus

388

NASA's satellite orbit anomaly problem can be solved precisely in the frame of Einstein's special theory of relativity. Anomaly confirms that gravity fields propagate with velocity of light as Einstein predicted  

E-Print Network (OSTI)

NASA's Jet Propulsion Laboratory put on You Tube a problem that has been baffling the scientists for sometime. It involves an unexpected force acting on the space probes. The author proves that NASA'S satellite orbit anomaly problem can be solved in the frame of Einstein's Special Theory of Relativity. The anomaly confirms that gravity fields propagate with velocity of light as Einstein predicted. The proof is based on the authors discovery of the relativistic version of Newton's gravity field. The author provides formulas for relativistic equation of motion for a spacecraft in the joint gravitational field of the Earth and the Sun in a Lorentzian frame attached to the Earth. The formulas are suitable for digital computers and can be easily implemented. He also shows how to find solutions of the relativistic equations of motion for the spacecraft.

Victor M. Bogdan

2009-10-17T23:59:59.000Z

389

Field Equations and Conservation Laws Derived from the Generalized Einstein Lagrangian Density for A Gravitational System and Their Implications to Cosmology  

E-Print Network (OSTI)

Based on investigations of the fundamental properties of the generalized Einstein Lagrangian density for a gravitational system, the theoretical foundations of the modified Einstein field equations and the Lorentz and Levi-Civita conservation laws are systematically studied. The theory of cosmology developed on the basis of these equations and laws is analyzed in detail. Some new properties and new effects of the cosmos are deduced; these new properties and new effects could be tested via future experiments and observations.

Fang-Pei Chen

2007-03-10T23:59:59.000Z

390

Dr. Everett V. Richardson Dr. E.V. Richardson was born on January 5, 1924, in Scottsbluff, Nebraska to Tom and  

E-Print Network (OSTI)

on projects in Pakistan, Venezuela, Egypt, India, and Bangladesh. His career included 17 years with the Water was a Fellow ASCE, Honorary Diplomat Engineering Water Resources and received the Hans Albert Einstein Award

391

DIRECTORY OF HEALTH SERVICES  

E-Print Network (OSTI)

a centralized resource of regional health care services for persons with developmental disabilitiesDIRECTORY OF HEALTH SERVICES FOR BRONX RESIDENTS WITH DEVELOPMENTAL DISABILITIES 2012 Compiled Albert Einstein College of Medicine in collaboration with Health Services Committee, Bronx Developmental

Yates, Andrew

392

Quantization of the linearised Einstein-Klein-Gordon system on arbitrary backgrounds and the special case of perturbations in Inflation  

E-Print Network (OSTI)

We quantize the linearised Einstein-Klein-Gordon system on arbitrary on-shell backgrounds in a manifestly covariant and gauge-invariant manner. For the special case of perturbations in Inflation, i.e. on-shell backgrounds of Friedmann-Lema\\^itre-Robertson-Walker type, we compare our general quantization construction with the standard approach to the quantum theory of perturbations in Inflation. We find that not all local quantum observables of the linearised Einstein-Klein-Gordon system can be split into local observables of scalar and tensor type as in the standard approach. However, we argue that this subclass of observables is sufficient for measuring perturbations which vanish at spatial infinity, which is in line with standard assumptions. Finally, we comment on a recent observation that, upon standard quantization, the quantum Bardeen potentials display a non-local behaviour and argue that a similar phenomenon occurs in any local quantum field theory.

Hack, Thomas-Paul

2014-01-01T23:59:59.000Z

393

Quantization of the linearised Einstein-Klein-Gordon system on arbitrary backgrounds and the special case of perturbations in Inflation  

E-Print Network (OSTI)

We quantize the linearised Einstein-Klein-Gordon system on arbitrary on-shell backgrounds in a manifestly covariant and gauge-invariant manner. For the special case of perturbations in Inflation, i.e. on-shell backgrounds of Friedmann-Lema\\^itre-Robertson-Walker type, we compare our general quantization construction with the standard approach to the quantum theory of perturbations in Inflation. We find that not all local quantum observables of the linearised Einstein-Klein-Gordon system can be split into local observables of scalar and tensor type as in the standard approach. However, we argue that this subclass of observables is sufficient for measuring perturbations which vanish at spatial infinity, which is in line with standard assumptions. Finally, we comment on a recent observation that, upon standard quantization, the quantum Bardeen potentials display a non-local behaviour and argue that a similar phenomenon occurs in any local quantum field theory.

Thomas-Paul Hack

2014-03-16T23:59:59.000Z

394

Fully coherent follow-up of continuous gravitational-wave candidates: an application to Einstein@Home results  

E-Print Network (OSTI)

We characterize and present the details of the follow-up method used on the most significant outliers of the Hough Einstein@Home all-sky search for continuous gravitational waves arXiv:1207.7176. This follow-up method is based on the two-stage approach introduced in arXiv:1303.2471, consisting of a semicoherent refinement followed by a fully coherent zoom. We quantify the efficiency of the follow-up pipeline using simulated signals in Gaussian noise. This pipeline does not search beyond first-order frequency spindown, and therefore we also evaluate its robustness against second-order spindown. We present the details of the Hough Einstein@Home follow-up (arXiv:1207.7176) on three hardware-injected signals and on the 8 most significant outliers of unknown origin.

Shaltev, Miroslav; Papa, Maria Alessandra; Prix, Reinhard

2014-01-01T23:59:59.000Z

395

A Proposed Alternative Low Energy Quantum Field Theory of Gravity Based on a Bose-Einstein Condensate Effect  

E-Print Network (OSTI)

An alternative quantum field theory for gravity is proposed for low energies based on an attractive effect between contaminants in a Bose-Einstein Condensate rather than on particle exchange. In the ``contaminant in condensate effect," contaminants cause a potential in an otherwise uniform condensate, forcing the condensate between two contaminants to a higher energy state. The energy of the system decreases as the contaminants come closer together, causing an attractive force between contaminants. It is proposed that mass-energy may have a similar effect on Einstein's space-time field, and gravity is quantized by the same method by which the contaminant in condensate effect is quantized. The resulting theory is finite and, if a physical condensate is assumed to underly the system, predictive. However, the proposed theory has several flaws at high energies and is thus limited to low energies. Falsifiable predictions are given for the case that the Higgs condensate is assumed to be the condensate underlying gravity.

Alexander Oshmyansky

2007-03-08T23:59:59.000Z

396

Vortex graphs as N-omers and CP(N-1) Skyrmions in N-component Bose-Einstein condensates  

E-Print Network (OSTI)

Stable vortex N-omers are constructed in coherently coupled N-component Bose-Einstein condensates. We classify all possible N-omers in terms of the mathematical graph theory and numerically construct all graphs for N=2,3,4. We also find that N-omers are well described as CP(N-1) skyrmions when inter-component and intra-component couplings are U(N) symmetric, and we evaluate their size dependence on the Rabi coupling.

Minoru Eto; Muneto Nitta

2013-03-25T23:59:59.000Z

397

Spherical Top-Hat Collapse of Viscous Modified Chaplygin Gas in Einstein's Gravity and Loop Quantum Cosmology  

E-Print Network (OSTI)

In this work, we focus on the collapse of a spherically symmetric perturbation, with a classical top-hat profile, to study the nonlinear evolution of only viscous modified Chaplygin gas (VMCG) perturbations in Einstein's gravity as well as in loop quantum Cosmology (LQC). In the perturbed region, we have investigated the natures of equation of state parameter, square speed of sound and another perturbed quantities. The results have been analyzed by numerical and graphical investigations.

Debnath, Ujjal

2015-01-01T23:59:59.000Z

398

Kapitsa resistence in degenerate quantum gases with Bogolyubov energy excitations in the presence of Bose - Einstein condensate  

E-Print Network (OSTI)

The linearized kinetic equation modelling behaviour of the degenerate quantum bose gas with the frequency of collisions depending on momentum of elementary excitations is constructed. The general case of dependence of the elementary excitations energy on momentum according to Bogolyubov formula is considered. The analytical solution of the half-space boundary problem on temperature jump on border of degenerate bose gas in the presence of a Bose - Einstein condensate is received. Expression for Kapitsa resistance is received.

Latyshev, Anatoly V

2010-01-01T23:59:59.000Z

399

Einfhrungsveranstaltung des Instituts fr Chemie zum Wintersemester 2013/2014  

E-Print Network (OSTI)

Einführungsveranstaltung des Instituts für Chemie zum Wintersemester 2013/2014 Donnerstag, 10.10.2013 Albert-Einstein-Str. 3a, August Michaelis Hörsaal 09.00 Uhr Hörsaalgebäude Chemie, Albert Einstein-Str. 3a/ Hörsaal 101 Begrü?ung der Studenten des Bachelor-Studienganges Chemie und der Lehramtskandidaten

Wolkenhauer, Olaf

400

Einfhrungsveranstaltung des Instituts fr Chemie zum Wintersemester 2012/2013  

E-Print Network (OSTI)

Einführungsveranstaltung des Instituts für Chemie zum Wintersemester 2012/2013 Donnerstag, 11.10.2012 Albert-Einstein-Str. 3a, August Michaelis Hörsaal 09.00 Uhr Hörsaalgebäude Chemie, Albert Einstein-Str. 3a/ Hörsaal 101 Begrü?ung der Studenten des Bachelor-Studienganges Chemie und der Lehramtskandidaten

Wolkenhauer, Olaf

Note: This page contains sample records for the topic "albert einstein distinguished" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Higgs Gravitational Interaction, Weak Boson Scattering, and Higgs Inflation in Jordan and Einstein Frames  

E-Print Network (OSTI)

We study gravitational interaction of Higgs boson through the unique dimension-4 operator $\\xi H^\\dag H R$, with $H$ the Higgs doublet and $R$ the Ricci scalar curvature. We analyze the effect of this dimensionless nonminimal coupling $\\xi$ on weak gauge boson scattering in both Jordan and Einstein frames. We explicitly establish the longitudinal-Goldstone boson equivalence theorem with nonzero $\\xi$ coupling in both frames, and analyze the unitarity constraints. We study the $\\xi$-induced weak boson scattering cross sections at O(1-30)TeV scales, and propose to probe the Higgs-gravity coupling via weak boson scattering experiments at the LHC(14TeV) and the next generation pp colliders (50-100TeV). We further extend our study to Higgs inflation, and quantitatively derive the perturbative unitarity bounds via coupled channel analysis, under large field background at the inflation scale. We analyze the unitarity constraints on the parameter space in both the conventional Higgs inflation and the improved models in light of the recent BICEP2 data.

Jing Ren; Zhong-Zhi Xianyu; Hong-Jian He

2014-04-17T23:59:59.000Z

402

Einstein and Jordan frames reconciled: a frame-invariant approach to scalar-tensor cosmology  

E-Print Network (OSTI)

Scalar-Tensor theories of gravity can be formulated in different frames, most notably, the Einstein and the Jordan one. While some debate still persists in the literature on the physical status of the different frames, a frame transformation in Scalar-Tensor theories amounts to a local redefinition of the metric, and then should not affect physical results. We analyze the issue in a cosmological context. In particular, we define all the relevant observables (redshift, distances, cross-sections, ...) in terms of frame-independent quantities. Then, we give a frame-independent formulation of the Boltzmann equation, and outline its use in relevant examples such as particle freeze-out and the evolution of the CMB photon distribution function. Finally, we derive the gravitational equations for the frame-independent quantities at first order in perturbation theory. From a practical point of view, the present approach allows the simultaneous implementation of the good aspects of the two frames in a clear and straightforward way.

R. Catena; M. Pietroni; L. Scarabello

2006-04-24T23:59:59.000Z

403

Statics and dynamics of Bose-Einstein condensates in double square well potentials  

SciTech Connect

We treat the behavior of Bose-Einstein condensates in double square well potentials of both equal and different depths. For even depth, symmetry preserving solutions to the relevant nonlinear Schroedinger equation are known, just as in the linear limit. When the nonlinearity is strong enough, symmetry breaking solutions also exist, side by side with the symmetric one. Interestingly, solutions almost entirely localized in one of the wells are known as an extreme case. Here we outline a method for obtaining all these solutions for repulsive interactions. The bifurcation point at which, for critical nonlinearity, the asymmetric solutions branch off from the symmetry preserving ones is found analytically. We also find this bifurcation point and treat the solutions generally via a Josephson junction model. When the confining potential is in the form of two wells of different depth, interesting phenomena appear. This is true of both the occurrence of the bifurcation point for the static solutions and also of the dynamics of phase and amplitude varying solutions. Again a generalization of the Josephson model proves useful. The stability of solutions is treated briefly.

Infeld, E. [Soltan Institute for Nuclear Studies, Hoza 69, PL-00-681 Warsaw (Poland); Zin, P. [Institute for Theoretical Physics, Warsaw University, Hoza 69, PL-00-681 Warsaw (Poland); Gocalek, J. [Polish Academy of Science, Al. Lotnikow 32/46, 02-668 Warsaw (Poland); Trippenbach, M. [Soltan Institute for Nuclear Studies, Hoza 69, PL-00-681 Warsaw (Poland); Institute for Theoretical Physics, Warsaw University, Hoza 69, PL-00-681 Warsaw (Poland)

2006-08-15T23:59:59.000Z

404

Quantum Tests of the Einstein Equivalence Principle with the STE-QUEST Space Mission  

E-Print Network (OSTI)

We present in detail the scientific objectives in fundamental physics of the Space-Time Explorer and QUantum Equivalence Space Test (STE-QUEST) space mission. STE-QUEST was pre-selected by the European Space Agency together with four other missions for the cosmic vision M3 launch opportunity planned around 2024. It carries out tests of different aspects of the Einstein Equivalence Principle using atomic clocks, matter wave interferometry and long distance time/frequency links, providing fascinating science at the interface between quantum mechanics and gravitation that cannot be achieved, at that level of precision, in ground experiments. We especially emphasize the specific strong interest of performing equivalence principle tests in the quantum regime, i.e. using quantum atomic wave interferometry. Although STE-QUEST was finally not selected in early 2014 because of budgetary and technological reasons, its science case was very highly rated. Our aim is to expose that science to a large audience in order to ...

Altschul, Brett; Blanchet, Luc; Bongs, Kai; Bouyer, Philippe; Cacciapuoti, Luigi; Capozziello, Salvatore; Gaaloul, Naceur; Giulini, Domenico; Hartwig, Jonas; Iess, Luciano; Jetzer, Philippe; Landragin, Arnaud; Rasel, Ernst; Reynaud, Serge; Schiller, Stephan; Schubert, Christian; Sorrentino, Fiodor; Sterr, Uwe; Tasson, Jay D; Tino, Guglielmo M; Tuckey, Philip; Wolf, Peter

2014-01-01T23:59:59.000Z

405

The Quantum Nature of Identity in Human Thought: Bose-Einstein Statistics for Conceptual Indistinguishability  

E-Print Network (OSTI)

Increasing experimental evidence shows that humans combine concepts in a way that violates the rules of classical logic and probability theory. On the other hand, mathematical models inspired by the formalism of quantum theory are in accordance with data on concepts and their combinations. In this paper, we investigate a novel type of concept combination were a number is combined with a noun, e.g., `Eleven Animals. Our aim is to study 'conceptual identity' and the effects of 'indistinguishability' - in the combination 'Eleven Animals', the 'animals' are identical and indistinguishable - on the mechanisms of conceptual combination. We perform experiments on human subjects and find significant evidence of deviation from the predictions of classical statistical theories, more specifically deviations with respect to Maxwell-Boltzmann statistics. This deviation is of the 'same type' of the deviation of quantum mechanical from classical mechanical statistics, due to indistinguishability of microscopic quantum particles, i.e we find convincing evidence of the presence of Bose-Einstein statistics. We also present preliminary promising evidence of this phenomenon in a web-based study.

Diederik Aerts; Sandro Sozzo; Tomas Veloz

2014-10-24T23:59:59.000Z

406

Black holes in Einstein-aether and Horava-Lifshitz gravity  

E-Print Network (OSTI)

We study spherical black-hole solutions in Einstein-aether theory, a Lorentz-violating gravitational theory consisting of General Relativity with a dynamical unit timelike vector (the "aether") that defines a preferred timelike direction. These are also solutions to the infrared limit of Horava-Lifshitz gravity. We explore parameter values of the two theories where all presently known experimental constraints are satisfied, and find that spherical black-hole solutions of the type expected to form by gravitational collapse exist for all those parameters. Outside the metric horizon, the deviations away from the Schwarzschild metric are typically no more than a few percent for most of the explored parameter regions, which makes them difficult to observe with electromagnetic probes, but in principle within reach of future gravitational-wave detectors. Remarkably, we find that the solutions possess a universal horizon, not far inside the metric horizon, that traps waves of any speed relative to the aether. A notion of black hole thus persists in these theories, even in the presence of arbitrarily high propagation speeds.

Enrico Barausse; Ted Jacobson; Thomas P. Sotiriou

2011-07-07T23:59:59.000Z

407

Bose-Einstein condensation and Silver Blaze property from the two-loop $?$-derivable approximation  

E-Print Network (OSTI)

We extend our previous investigation of the two-loop $\\Phi$-derivable approximation to finite chemical potential $\\mu$ and discuss Bose-Einstein condensation (BEC) in the case of a charged scalar field with $O(2)$ symmetry. We show that the approximation is renormalizable by means of counterterms which are independent of both the temperature and the chemical potential. We point out the presence of an additional skew contribution to the propagator as compared to the $\\mu=0$ case, which comes with its own gap equation (except at Hartree level). We solve this equation together with the field equation, and the usual longitudinal and transversal gap equations to find that the transition is second order, in agreement with recent lattice results to which we compare. We also discuss a general criterion an approximation should obey for the so-called Silver Blaze property to hold, and we show that any $\\Phi$-derivable approximation at finite temperature and density obeys this criterion if one chooses a UV regularization that does not cut off the Matsubara sums.

Gergely Mark; Urko Reinosa; Zsolt Szp

2014-10-26T23:59:59.000Z

408

Phase space theory of Bose-Einstein condensates and time-dependent modes  

E-Print Network (OSTI)

A phase space theory approach for treating dynamical behaviour of Bose-Einstein condensates applicable to situations such as interferometry with BEC in time-dependent double well potentials is presented. Time-dependent mode functions are used, chosen so that one, two,.. highly occupied modes describe well the physics of interacting condensate bosons in time dependent potentials at well below the transition temperature. Time dependent mode annihilation, creation operators are represented by time dependent phase variables, but time independent total field annihilation, creation operators are represented by time independent field functions. Two situations are treated, one (mode theory) is where specific mode annihilation, creation operators and their related phase variables and distribution functions are dealt with, the other (field theory) is where only field creation, annihilation operators and their related field functions and distribution functionals are involved. The paper focuses on the hybrid approach, where the modes are divided up between condensate (highly occupied) modes and non-condensate (sparsely occupied) modes. It is found that there are extra terms in the Ito stochastic equations both for the stochastic phases and stochastic fields, involving coupling coefficients defined via overlap integrals between mode functions and their time derivatives. For the hybrid approach both the Fokker-Planck and functional Fokker-Planck equations differ from those derived via the correspondence rules, the drift vectors are unchanged but the diffusion matrices contain additional terms involving the coupling coefficients. Results are also presented for the combined approach where all the modes are treated as one set.

B. J. Dalton

2012-07-20T23:59:59.000Z

409

Nonlocality of a single photon: Paths to an Einstein-Podolsky-Rosen-steering experiment  

SciTech Connect

A single-photon incident on a beam splitter produces an entangled field state, and in principle could be used to violate a Bell inequality, but such an experiment (without postselection) is beyond the reach of current experiments. Here we consider the somewhat simpler task of demonstrating Einstein-Podolsky-Rosen (EPR) steering with a single photon (also without postselection). We demonstrate that Alice's choice of measurement on her portion of the entangled state can affect Bob's portion of the entangled state in his laboratory, in a sense rigorously defined by us and Doherty [Phys. Rev. Lett. 98, 140402 (2007)]. Previous work by Lvovsky and coworkers [Phys. Rev. Lett. 92, 047903 (2004)] has addressed this phenomenon (which they called remote preparation) experimentally using homodyne measurements on a single photon. Here we show that, unfortunately, their experimental parameters do not meet the bounds necessary for a rigorous demonstration of EPR steering with a single photon. However, we also show that modest improvements in the experimental parameters, and the addition of photon counting to the arsenal of Alice's measurements, would be sufficient to allow such a demonstration.

Jones, S. J.; Wiseman, H. M. [Centre for Quantum Computation and Communication Technology (Australian Research Council), Centre for Quantum Dynamics, Griffith University, Brisbane Queensland 4111 (Australia)

2011-07-15T23:59:59.000Z

410

Strong Einstein-Podolsky-Rosen entanglement from a single squeezed light source  

SciTech Connect

Einstein-Podolsky-Rosen (EPR) entanglement is a criterion that is more demanding than just certifying entanglement. We theoretically and experimentally analyze the low-resource generation of bipartite continuous-variable entanglement, as realized by mixing a squeezed mode with a vacuum mode at a balanced beam splitter, i.e., the generation of so-called vacuum-class entanglement. We find that in order to observe EPR entanglement the total optical loss must be smaller than 33.3 %. However, arbitrarily strong EPR entanglement is generally possible with this scheme. We realize continuous-wave squeezed light at 1550 nm with up to 9.9 dB of nonclassical noise reduction, which is the highest value at a telecom wavelength so far. Using two phase-controlled balanced homodyne detectors we observe an EPR covariance product of 0.502{+-}0.006<1, where 1 is the critical value. We discuss the feasibility of strong Gaussian entanglement and its application for quantum key distribution in a short-distance fiber network.

Eberle, Tobias [Max-Planck-Institut fuer Gravitationsphysik (Albert-Einstein-Institut) and Institut fuer Gravitationsphysik der Leibniz Universitaet Hannover, Callinstrasse 38, D-30167 Hannover (Germany); Centre for Quantum Engineering and Space-Time Research - QUEST, Leibniz Universitaet Hannover, Welfengarten 1, D-30167 Hannover (Germany); Haendchen, Vitus; Schnabel, Roman [Max-Planck-Institut fuer Gravitationsphysik (Albert-Einstein-Institut) and Institut fuer Gravitationsphysik der Leibniz Universitaet Hannover, Callinstrasse 38, D-30167 Hannover (Germany); Duhme, Joerg [Centre for Quantum Engineering and Space-Time Research - QUEST, Leibniz Universitaet Hannover, Welfengarten 1, D-30167 Hannover (Germany); Institut fuer Theoretische Physik der Leibniz Universitaet Hannover, Appelstrasse 2, D-30167 Hannover (Germany); Franz, Torsten; Werner, Reinhard F. [Institut fuer Theoretische Physik der Leibniz Universitaet Hannover, Appelstrasse 2, D-30167 Hannover (Germany)

2011-05-15T23:59:59.000Z

411

Inflation of small true vacuum bubble by quantization of Einstein-Hilbert action  

E-Print Network (OSTI)

We study the quantization of the Einstein-Hilbert action for a small true vacuum bubble without matter or scalar field. The quantization of action induces an extra term of potential called quantum potential in Hamilton-Jacobi equation, which gives expanding solutions including the exponential expansion solutions of the scalar factor $a$ for the bubble. We show that exponential expansion of the bubble continues with a short period (about a Planck time $t_p$), no matter whether the bubble is closed, flat or open. The exponential expansion ends spontaneously when the bubble becomes large, i.e., the scalar factor $a$ of the bubble approaches a Planck length $l_p$. We show that it is quantum potential of the small true vacuum bubble that plays the role of the scalar field potential suggested in the slow-roll inflation model. With the picture of quantum tunneling, we calculate particle creation rate during inflation, which shows that particles created by inflation have the capability of reheating the universe.

Dongshan He; Qing-yu Cai

2014-09-07T23:59:59.000Z

412

Inflation of small true vacuum bubble by quantization of Einstein-Hilbert action  

E-Print Network (OSTI)

We study the quantization of the Einstein-Hilbert action for a small true vacuum bubble without matter or scalar field. The quantization of action induces an extra term of potential called quantum potential in Hamilton-Jacobi equation, which gives expanding solutions including the exponential expansion solutions of the scalar factor $a$ for the bubble. We show that exponential expansion of the bubble continues with a short period (about a Planck time $t_p$), no matter whether the bubble is closed, flat or open. The exponential expansion ends spontaneously when the bubble becomes large, i.e., the scalar factor $a$ of the bubble approaches a Planck length $l_p$. We show that it is quantum potential of the small true vacuum bubble that plays the role of the scalar field potential suggested in the slow-roll inflation model. With the picture of quantum tunneling, we calculate particle creation rate during inflation, which shows that particles created by inflation have the capability of reheating the universe.

He, Dongshan

2014-01-01T23:59:59.000Z

413

Dynamics of Three Non-co-rotating Vortices in Bose-Einstein Condensates  

E-Print Network (OSTI)

In this work we use standard Hamiltonian-system techniques in order to study the dynamics of three vortices with alternating charges in a confined Bose-Einstein condensate. In addition to being motivated by recent experiments, this system offers a natural vehicle for the exploration of the transition of the vortex dynamics from ordered to progressively chaotic behavior. In particular, it possesses two integrals of motion, the {\\it energy} (which is expressed through the Hamiltonian $H$) and the {\\it angular momentum} $L$ of the system. By using the integral of the angular momentum, we reduce the system to a two degree-of-freedom one with $L$ as a parameter and reveal the topology of the phase space through the method of Poincar\\'e surfaces of section. We categorize the various motions that appear in the different regions of the sections and we study the major bifurcations that occur to the families of periodic motions of the system. Finally, we correspond the orbits on the surfaces of section to the real space motion of the vortices in the plane.

Vassilis Koukouloyannis; George Voyatzis; Panayotis G. Kevrekidis

2014-04-27T23:59:59.000Z

414

Ground states and dynamics of spin-orbit-coupled Bose-Einstein condensates  

E-Print Network (OSTI)

We study analytically and asymptotically as well as numerically ground states and dynamics of two-component spin-orbit-coupled Bose-Einstein condensates (BECs) modeled by the coupled Gross-Pitaevskii equations (CGPEs). In fact, due to the appearance of the spin-orbit (SO) coupling in the two-component BEC with a Raman coupling, the ground state structures and dynamical properties become very rich and complicated. For the ground states, we establish the existence and non-existence results under different parameter regimes, and obtain their limiting behaviors and/or structures with different combinations of the SO and Raman coupling strengths. For the dynamics, we show that the motion of the center-of-mass is either non-periodic or with different frequency to the trapping frequency when the external trapping potential is taken as harmonic and the initial data is chosen as a stationary state (e.g. ground state) with a shift, which is completely different from the case of a two-component BEC without the SO coupling, and obtain the semiclassical limit of the CGPEs in the linear case via the Wigner transform method. Efficient and accurate numerical methods are proposed for computing the ground states and dynamics, especially for the case of box potentials. Numerical results are reported to demonstrate the efficiency and accuracy of the numerical methods and show the rich phenomenon in the SO-coupled BECs.

Weizhu Bao; Yongyong Cai

2014-07-22T23:59:59.000Z

415

Galactic cold dark matter as a Bose-Einstein condensate of WISPs  

SciTech Connect

We propose here the dark matter content of galaxies as a cold bosonic fluid composed of Weakly Interacting Slim Particles (WISPs), represented by spin-0 axion-like particles and spin-1 hidden bosons, thermalized in the Bose-Einstein condensation state and bounded by their self-gravitational potential. We analyze two zero-momentum configurations: the polar phases in which spin alignment of two neighbouring particles is anti-parallel and the ferromagnetic phases in which every particle spin is aligned in the same direction. Using the mean field approximation we derive the Gross-Pitaevskii equations for both cases, and, supposing the dark matter to be a polytropic fluid, we describe the particles density profile as Thomas-Fermi distributions characterized by the halo radii and in terms of the scattering lengths and mass of each particle. By comparing this model with data obtained from 42 spiral galaxies and 19 Low Surface Brightness (LSB) galaxies, we constrain the dark matter particle mass to the range 10{sup ?6}10{sup ?4} eV and we find the lower bound for the scattering length to be of the order 10{sup ?14} fm.

Pires, M.O.C.; Souza, J.C.C. de, E-mail: marcelo.pires@ufabc.edu.br, E-mail: jose.souza@ufabc.edu.br [Centro de Cincias Naturais e Humanas, Universidade Federal do ABC, Rua Santa Adlia 166, 09210-170, Santo Andr, SP (Brazil)

2012-11-01T23:59:59.000Z

416

The Speed of Light and the Einstein Legacy: 1905-2005  

E-Print Network (OSTI)

That the speed of light is always c=300,000km/s relative to any observer in nonaccelerating motion is one of the foundational concepts of physics. Experimentally this was supposed to have been first revealed by the 1887 Michelson-Morley experiment, and was made one of Einstein's key postulates of Special Relativity in 1905. However in 2002 the actual 1887 fringe shift data was analysed for the first time with a theory for the Michelson interferometer that used both the Fitzgerald-Lorentz contraction effect, as well as the effect of the air in the interferometer on the speed of light. That analysis showed that the data gave an absolute motion speed in excess of 300km/s. So far six other experiments have been shown to give the same result. This implies that the foundations of physics require significant revision. As well data shows that both Newtonian gravity and General Relativity are also seriously flawed, and a new theory of gravity is shown to explain various so-called gravitational `anomalies', including the `dark matter' effect. Most importantly absolute motion is now understood to be the cause of the various relativistic effects, in accord with the earlier proposal by Lorentz.

Reginald T Cahill

2005-01-11T23:59:59.000Z

417

Studies in honor of Albert Morey Sturtevant  

E-Print Network (OSTI)

/is used as a spell ing device to mark \\ or g as representing a palatal stop. Examples: kjsa [kou.sa] choose, gjald [gal.d] payment, rehja [re.Ka, re.ga] unwind, rekMja [reh:ga] bed. In such cases, of course, j does not represent a separate phoneme...

1952-01-01T23:59:59.000Z

418

Wei-Ju (Albert) Chen Contact Information  

E-Print Network (OSTI)

. This system collects and converts waste heats to electrical #12;energy using thermoelectric generator? : The goal of this project is to recycle the heat generated by computing servers for energy harvesting rather-Hsuan Hsieh, Kuei-Han Li, Ya-Yunn Su, Polly Huang, Hao-Hua Chu, "Why Blow Away Heat? Harvest Server's Heat

Chu, Hao-hua

419

CALBET, ALBERT Mesozooplankton grazing effect on primary ...  

Science Journals Connector (OSTI)

their abundance and effect have been traditionally neglected, and we lack knowledge on the .... ship between PP and mesozooplankton ingestion rates. Thus,.

penta@ultra1

2001-10-18T23:59:59.000Z

420

Frederick Albert Sutton Building Quick Green Facts  

E-Print Network (OSTI)

and wastewater systems. This represents a savings of 67,811 gallons of water saved from going down the drain, plastic and metal will be collected for recycling from the building. · 81.9% of construction waste was diverted from landfills through recycling and reuse. · 17.4% of the cost of materials used in the project

Feschotte, Cedric

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421

Relevance of Bose-Einstein condensation to the interference of two independent Bose gases  

SciTech Connect

Interference of two independently prepared ideal Bose gases is discussed, on the basis of the idea of measurement-induced interference. It is known that, even if the number of atoms in each gas is individually fixed finite and the symmetry of the system is not broken, an interference pattern is observed on each single snapshot. The key role is played by the Hanbury Brown and Twiss effect, which leads to an oscillating pattern of the cloud of identical atoms. Then, how essential is the Bose-Einstein condensation to the interference? In this work, we describe two ideal Bose gases trapped in two separate three-dimensional harmonic traps at a finite temperature T, using the canonical ensembles (with fixed numbers of atoms). We compute the full statistics of the snapshot profiles of the expanding and overlapping gases released from the traps. We obtain a simple formula valid for finite T, which shows that the average fringe spectrum (average fringe contrast) is given by the purity of each gas. The purity is known to be a good measure of condensation, and the formula clarifies the relevance of the condensation to the interference. The results for T=0, previously known in the literature, can be recovered from our analysis. The fluctuation of the interference spectrum is also studied, and it is shown that the fluctuation is vanishingly small only below the critical temperature T{sub c}, meaning that interference pattern is certainly observed on every snapshot below T{sub c}. The fact that the number of atoms is fixed in the canonical ensemble is crucial to this vanishing fluctuation.

Iazzi, Mauro [International School for Advanced Studies (SISSA), via Beirut 2-4, I-34014 Trieste (Italy); Yuasa, Kazuya [Waseda Institute for Advanced Study, Waseda University, Tokyo 169-8050 (Japan)

2011-03-15T23:59:59.000Z

422

Relevance of Bose-Einstein condensation to the interference of two independent Bose gases  

Science Journals Connector (OSTI)

Interference of two independently prepared ideal Bose gases is discussed, on the basis of the idea of measurement-induced interference. It is known that, even if the number of atoms in each gas is individually fixed finite and the symmetry of the system is not broken, an interference pattern is observed on each single snapshot. The key role is played by the Hanbury Brown and Twiss effect, which leads to an oscillating pattern of the cloud of identical atoms. Then, how essential is the Bose-Einstein condensation to the interference? In this work, we describe two ideal Bose gases trapped in two separate three-dimensional harmonic traps at a finite temperature T, using the canonical ensembles (with fixed numbers of atoms). We compute the full statistics of the snapshot profiles of the expanding and overlapping gases released from the traps. We obtain a simple formula valid for finite T, which shows that the average fringe spectrum (average fringe contrast) is given by the purity of each gas. The purity is known to be a good measure of condensation, and the formula clarifies the relevance of the condensation to the interference. The results for T=0, previously known in the literature, can be recovered from our analysis. The fluctuation of the interference spectrum is also studied, and it is shown that the fluctuation is vanishingly small only below the critical temperature Tc, meaning that interference pattern is certainly observed on every snapshot below Tc. The fact that the number of atoms is fixed in the canonical ensemble is crucial to this vanishing fluctuation.

Mauro Iazzi and Kazuya Yuasa

2011-03-14T23:59:59.000Z

423

Sound waves and modulational instabilities on continuous wave solutions in spinor Bose-Einstein condensates  

E-Print Network (OSTI)

We analyze sound waves (phonons, Bogoliubov excitations) propagating on continuous wave (cw) solutions of repulsive $F=1$ spinor Bose-Einstein condensates (BECs), such as $^{23}$Na (which is antiferromagnetic or polar) and $^{87}$Rb (which is ferromagnetic). Zeeman splitting by a uniform magnetic field is included. All cw solutions to ferromagnetic BECs with vanishing $M_F=0$ particle density and non-zero components in both $M_F=\\pm 1$ fields are subject to modulational instability (MI). MI increases with increasing particle density. MI also increases with differences in the components' wavenumbers; this effect is larger at lower densities but becomes insignificant at higher particle densities. CW solutions to antiferromagnetic (polar) BECS with vanishing $M_F=0$ particle density and non-zero components in both $M_F=\\pm 1$ fields do not suffer MI if the wavenumbers of the components are the same. If there is a wavenumber difference, MI initially increases with increasing particle density, then peaks before dropping to zero beyond a given particle density. The cw solutions with particles in both $M_F=\\pm 1$ components and nonvanishing $M_F=0$ components do not have MI if the wavenumbers of the components are the same, but do exhibit MI when the wavenumbers are different. Direct numerical simulations of a cw with weak white noise confirm that weak noise grows fastest at wavenumbers with the largest MI, and shows some of the results beyond small amplitude perturbations. Phonon dispersion curves are computed numerically; we find analytic solutions for the phonon dispersion in a variety of limiting cases.

Richard S. Tasgal; Y. B. Band

2015-01-21T23:59:59.000Z

424

WDTS Budget | U.S. DOE Office of Science (SC)  

Office of Science (SC) Website

Budget Budget Workforce Development for Teachers and Scientists (WDTS) WDTS Home About Organization Chart .pdf file (24KB) Education Links WDTS Budget WDTS Committees of Visitors Jobs Science Undergraduate Laboratory Internships (SULI) Community College Internships (CCI) DOE Office of Science Graduate Fellowship (SCGF) Program External link Albert Einstein Distinguished Educator Fellowship (AEF) Program Visiting Faculty Program (VFP) at DOE Laboratories DOE National Science Bowl® (NSB) Laboratory Equipment Donation Program (LEDP) Outreach Contact Information Workforce Development for Teachers and Scientists U.S. Department of Energy SC-27/ Forrestal Building 1000 Independence Ave., SW Washington, DC 20585 P: (202) 586-8842 F: (202) 586-0019 E: sc.wdts@science.doe.gov

425

WDTS Committees of Visitors | U.S. DOE Office of Science (SC)  

Office of Science (SC) Website

Committees Committees of Visitors Workforce Development for Teachers and Scientists (WDTS) WDTS Home About Organization Chart .pdf file (24KB) Education Links WDTS Budget WDTS Committees of Visitors Jobs Science Undergraduate Laboratory Internships (SULI) Community College Internships (CCI) DOE Office of Science Graduate Fellowship (SCGF) Program External link Albert Einstein Distinguished Educator Fellowship (AEF) Program Visiting Faculty Program (VFP) at DOE Laboratories DOE National Science Bowl® (NSB) Laboratory Equipment Donation Program (LEDP) Outreach Contact Information Workforce Development for Teachers and Scientists U.S. Department of Energy SC-27/ Forrestal Building 1000 Independence Ave., SW Washington, DC 20585 P: (202) 586-8842 F: (202) 586-0019 E: sc.wdts@science.doe.gov

426

Education Links | U.S. DOE Office of Science (SC)  

Office of Science (SC) Website

Education Links Education Links Workforce Development for Teachers and Scientists (WDTS) WDTS Home About Organization Chart .pdf file (24KB) Education Links WDTS Budget WDTS Committees of Visitors Jobs Science Undergraduate Laboratory Internships (SULI) Community College Internships (CCI) DOE Office of Science Graduate Fellowship (SCGF) Program External link Albert Einstein Distinguished Educator Fellowship (AEF) Program Visiting Faculty Program (VFP) at DOE Laboratories DOE National Science Bowl® (NSB) Laboratory Equipment Donation Program (LEDP) Outreach Contact Information Workforce Development for Teachers and Scientists U.S. Department of Energy SC-27/ Forrestal Building 1000 Independence Ave., SW Washington, DC 20585 P: (202) 586-8842 F: (202) 586-0019 E: sc.wdts@science.doe.gov

427

Workforce Development for Teachers and Scientists (WDTS) Homepage | U.S.  

NLE Websites -- All DOE Office Websites (Extended Search)

Programs » WDTS Home Programs » WDTS Home Workforce Development for Teachers and Scientists (WDTS) WDTS Home About Science Undergraduate Laboratory Internships (SULI) Community College Internships (CCI) DOE Office of Science Graduate Fellowship (SCGF) Program External link Albert Einstein Distinguished Educator Fellowship (AEF) Program Visiting Faculty Program (VFP) at DOE Laboratories DOE National Science Bowl® (NSB) Laboratory Equipment Donation Program (LEDP) Outreach Contact Information Workforce Development for Teachers and Scientists U.S. Department of Energy SC-27/ Forrestal Building 1000 Independence Ave., SW Washington, DC 20585 P: (202) 586-8842 F: (202) 586-0019 E: sc.wdts@science.doe.gov The application process is now closed for the Summer Term of The Science Undergraduate Laboratory Internships (SULI) Program

428

Jobs | U.S. DOE Office of Science (SC)  

NLE Websites -- All DOE Office Websites (Extended Search)

Jobs Jobs Workforce Development for Teachers and Scientists (WDTS) WDTS Home About Organization Chart .pdf file (24KB) Education Links WDTS Budget WDTS Committees of Visitors Jobs Science Undergraduate Laboratory Internships (SULI) Community College Internships (CCI) DOE Office of Science Graduate Fellowship (SCGF) Program External link Albert Einstein Distinguished Educator Fellowship (AEF) Program Visiting Faculty Program (VFP) at DOE Laboratories DOE National Science Bowl® (NSB) Laboratory Equipment Donation Program (LEDP) Outreach Contact Information Workforce Development for Teachers and Scientists U.S. Department of Energy SC-27/ Forrestal Building 1000 Independence Ave., SW Washington, DC 20585 P: (202) 586-8842 F: (202) 586-0019 E: sc.wdts@science.doe.gov About

429

About | U.S. DOE Office of Science (SC)  

Office of Science (SC) Website

About About Workforce Development for Teachers and Scientists (WDTS) WDTS Home About Organization Chart .pdf file (24KB) Education Links WDTS Budget WDTS Committees of Visitors Jobs Science Undergraduate Laboratory Internships (SULI) Community College Internships (CCI) DOE Office of Science Graduate Fellowship (SCGF) Program External link Albert Einstein Distinguished Educator Fellowship (AEF) Program Visiting Faculty Program (VFP) at DOE Laboratories DOE National Science Bowl® (NSB) Laboratory Equipment Donation Program (LEDP) Outreach Contact Information Workforce Development for Teachers and Scientists U.S. Department of Energy SC-27/ Forrestal Building 1000 Independence Ave., SW Washington, DC 20585 P: (202) 586-8842 F: (202) 586-0019 E: sc.wdts@science.doe.gov

430

Quantum potential induced emergence of massive scalar fields in the analogue gravity model of a Bose-Einstein condensate  

E-Print Network (OSTI)

We show here a general approach to include the quantum potential term in the emergent gravity model of Bose-Einstein condensate by using multiple scales. Our main result shows the emergence of a massive scalar modulating field at larger length scales as a result of Lorentz symmetry breaking at the length scales comparable to the healing length. We also propose that, the nonlocal interactions induced tuning of healing length can be exploited experimentally to observe the systematics of small and large scale coupling as emerges in our present analysis.

Supratik Sarkar; A. Bhattacharyay

2014-05-08T23:59:59.000Z

431

The Planck Length Scale and Einstein Mass-Energy Obtained from the Sciama-Mach Large Number Relationship  

E-Print Network (OSTI)

If a physical significance should be attributed to the cosmological large number relationship obtained from Sciama's formulation of Mach's Principle, then a number of interesting physical conclusions may be drawn. The Planck length is naturally obtained as the amplitude of waves in a medium whose properties are implied by the relationship. The relativistic internal energy associated with a rest mass is explicitly related to the gravitational potential energy of the Universe, and consistency with the Einstein photon energy is demonstrated. Broader cosmological consequences of this formulation are addressed.

Scott Funkhouser

2003-09-25T23:59:59.000Z

432

$P-V$ criticality of AdS black hole in the Einstein-Maxwell-power-Yang-Mills gravity  

E-Print Network (OSTI)

We study the $P-V$ critical behaivor of N-dimensional AdS black holes in Einstein-Maxwell-power-Yang-Mills gravity. Our results show the existence of the Van der Waals like small-large black hole phase transitions when taking some special values of charges of the Maxwell and Yang-Mills (YM) fields. Further to calculate the critical exponents of the black holes at the critical point, we find that they are the same as those in the Van der Waals liquid-gas system.

Ming Zhang; Zhan-Ying Yang; De-Cheng Zou; Wei Xu; Rui-Hong Yue

2014-12-03T23:59:59.000Z

433

Near-resonant spatial images of confined Bose-Einstein condensates in a 4-Dee magnetic bottle  

Science Journals Connector (OSTI)

We present quantitative measurements of the spatial density profile of Bose-Einstein condensates of sodium atoms confined in a 4-Dee magnetic bottle. The condensates are imaged in transmission with near-resonant laser light. We demonstrate that the Thomas-Fermi surface of a condensate can be determined to better than 1%. More generally, we obtain excellent agreement with mean-field theory. We conclude that precision measurements of atomic scattering lengths and interactions between phase-separated cold atoms in a harmonic trap can be performed with high precision using this method.

Lene Vestergaard Hau; B. D. Busch; Chien Liu; Zachary Dutton; Michael M. Burns; J. A. Golovchenko

1998-07-01T23:59:59.000Z

434

VOLUME 82, NUMBER 2 P H Y S I C A L R E V I E W L E T T E R S 11 JANUARY 1999 Dynamics of Two Interacting Bose-Einstein Condensates  

E-Print Network (OSTI)

drasti- cally different from that of ordinary gas samples. Trapped Bose-Einstein condensates are well the interparticle interaction. The question of how the gas sample, being initially a pure condensate, subsequently Interacting Bose-Einstein Condensates A. Sinatra,1 P. O. Fedichev,2,3 Y. Castin,1 J. Dalibard,1 and G. V

Dalibard, Jean

435

Distillation of Bose-Einstein Condensates in a Double-Well Potential Y. Shin, M. Saba, A. Schirotzek, T. A. Pasquini, A. E. Leanhardt, D. E. Pritchard, and W. Ketterle*  

E-Print Network (OSTI)

Distillation of Bose-Einstein Condensates in a Double-Well Potential Y. Shin, M. Saba, A-Einstein condensates of sodium atoms, prepared in an optical dipole trap, were distilled into a second empty dipole trap adjacent to the first one. The distillation was driven by thermal atoms spilling over

436

Stimulated Raman adiabatic passage from an atomic to a molecular Bose-Einstein condensate P. D. Drummond and K. V. Kheruntsyan  

E-Print Network (OSTI)

to maintain high conversion efficiencies with smaller Rabi frequencies and under experimentally less demanding of the condensates. The result is that the STIRAP process appears feasible at high laser pulse intensities, providedStimulated Raman adiabatic passage from an atomic to a molecular Bose-Einstein condensate P. D

Heinzen, Daniel J.

437

Slowly rotating Kerr black hole as a solution of Einstein-Cartan gravity extended by a Chern-Simons term  

E-Print Network (OSTI)

We consider the nondynamical Chern-Simons (CS) modification to General Relativity (GR) in the framework of the Einstein-Cartan formulation, as providing a way to incorporate a slowly rotating Kerr black hole in the space of solutions. Our proposal lies on considering the CS term as a source of torsion and on an iterative procedure to look for vacuum solutions of the system, by expanding the tetrad, the connection and the embedding parameter, in powers of a dimensionless small parameter $\\beta$ which codifies the CS coupling. Starting from a torsionless zeroth-order vacuum solution we derive the second-order differential equation for the $\\mathcal{O}(\\beta)$ corrections to the metric, for an arbitrary embedding parameter. Furthermore we can show that the slowly rotating Kerr metric is an $\\mathcal{O}(\\beta)$ solution of the system either in the canonical or the axial embeddings.

Mauro Cambiaso; Luis F. Urrutia

2010-08-03T23:59:59.000Z

438

Suppression of Faraday waves in a Bose-Einstein condensate in the presence of an optical lattice  

SciTech Connect

We study the formation of Faraday waves in an elongated Bose-Einstein condensate in the presence of a one-dimensional optical lattice. The waves are parametrically excited by modulating the radial confinement of the condensate close to a transverse breathing mode of the system. For very shallow optical lattices, phonons with a well-defined wave vector propagate along the condensate, as in the absence of the lattice, and we observe the formation of a Faraday pattern. We find that by increasing the potential depth the local sound velocity decreases, and when it equals the condensate local phase velocity, the condensate develops an incoherent superposition of several modes and the parametric excitation of Faraday waves is suppressed.

Capuzzi, Pablo [Departamento de Fisica, FCEN Universidad de Buenos Aires, Ciudad Universitaria, Pab. I C1428EGA Buenos Aires (Argentina); Instituto de Fisica de Buenos Aires-CONICET (Argentina); Gattobigio, Mario; Vignolo, Patrizia [Universite de Nice-Sophia Antipolis, Institut non Lineaire de Nice, CNRS, 1361 route des Lucioles, F-06560 Valbonne (France)

2011-01-15T23:59:59.000Z

439

Ground-state properties of a Bose-Einstein condensate tuned by a far-off-resonant optical field  

SciTech Connect

In this paper, we explore a scheme to tackle a challenging problem of stable Bose-Einstein condensates (BECs) with attractive atom interactions. In this scheme, the s-wave scattering length is tuned in space, rather than in time as previously studied, by a far-off-resonant Gaussian optical field, from negative to positive in the center region of the potential well. We find that this tuning leads to coexisting repulsive and attractive interactions within a single atomic gas and consequently a stable BEC in the repulsive region. We investigate the ground-state properties of the tuned BECs and show them to exhibit a strikingly different spatial density distribution from a conventional one with a positive s-wave scattering length. The tuned BEC is formed only when the condensed number is less than a critical number. We derive a formula for the critical number.

Dong Guangjiong [Physics Department, Center for Nonlinear Studies and the Beijing-Hong Kong-Singapore Joint Center for Nonlinear and Complex Systems, Hong Kong, Kowloon Tong, Hong Kong (China); Hu Bambi [Physics Department, Center for Nonlinear Studies and the Beijing-Hong Kong-Singapore Joint Center for Nonlinear and Complex Systems, Hong Kong, Kowloon Tong, Hong Kong (China); Department of Physics, University of Houston, Houston, Texas 77204-5005 (United States); Lu Weiping [Department of Physics, Heriot-Watt University, Edinburgh, Scotland (United Kingdom)

2006-12-15T23:59:59.000Z

440

Study of Bose-Einstein correlations in e/sup +/e/sup -/ annihilation at 29 GeV  

SciTech Connect

Bose-Einstein correlations between like-sign pions have been investigated in e/sup +/e/sup -/ annihilation at ..sqrt..s = 29 GeV using the Time Projection Chamber detector at the SLAC e/sup +/e/sup -/ storage ring PEP. The production rate of like-sign pion pairs with small relative momentum is found to be increased by more than 50% over the rate expected for uncorrelated production of pions. From the correlation length, a typical source radius of 0.65 fm is derived. Data are consistent with a spherical shape of the pion source. No dependence of radius or correlation strength on the event multiplicity is observed.

Aihara, H.; Alston-Garnjost, M.; Bakken, J.A.; Barbaro-Galtieri, A.; Barnes, A.V.; Barnett, B.A.; Bengtsson, H.; Blumenfeld, B.J.; Bross, A.D.; Buchanan, C.D.; Chamberlain, O.; Chien, C.; Clark, A.R.; Cordier, A.; Dahl, O.I.; Day, C.T.; Derby, K.A.; Eberhard, P.H.; Fancher, D.L.; Fujii, H.; Fujii, T.; Gabioud, B.; Gary, J.W.; Gorn, W.; Hadley, N.J.; Hauptman, J.M.; Hofmann, W.; Huth, J.E.; Hylen, J.; Kamae, T.; Kaye, H.S.; Kenney, R.W.; Kerth, L.T.; Koda, R.I.; Kofler, R.R.; Kwong, K.K.; Layter, J.G.; Lindsey, C.S.; Loken, S.C.; Lu, X.Q.; Lynch, G.R.; Madansky, L.; Madaras, R.J.; Maruyama, K.; Marx, J.N.; Matthews, J.A.J.; Melnikoff, S.O.; Moses, W.; Nemethy, P.; Nygren, D.R.; Oddone, P.J.; Park, D.A.; Pevsner, A.; Pripstein, M.; Robrish, P.R.; Ronan, M.T.; Ross, R.R.; Rouse, F.R.; Sauerwein, R.R.; Shapiro, G.; Shapiro, M.D.; Shen, B.C.; Slater, W.E.; Stevenson, M.L.; Stork, D.H.; Ticho, H.K.; Toge, N.; van Daalen Wetters, R.F.; VanDalen, G.J.; van Tyen, R.; Wang, E.M.; Wayne, M.R.; We

1985-03-01T23:59:59.000Z

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441

Dynamics of kink-dark solitons in Bose-Einstein condensates with both two- and three-body interactions  

Science Journals Connector (OSTI)

The matter-wave solutions of Bose-Einstein condensates with three-body interaction are examined through the one-dimensional Gross-Pitaevskii equation. By using a modified lens-type transformation and a further extension of the tanh-function method we obtain the exact analytical solutions which describe the propagation of kink-shaped solitons, anti-kink-shaped solitons, and other families of solitary waves. We realize that the shape of a kink solitary wave depends on both the scattering length and the parameter of atomic exchange with the substrate. The stability of the solitary waves is examined using analytical and numerical methods. Our results can also be applied to nonlinear optics in the presence of cubic-quintic media.

Alidou Mohamadou; Etienne Wamba; Daniel Lissouck; Timoleon C. Kofane

2012-04-18T23:59:59.000Z

442

Optimal quantum control of Bose-Einstein condensates in magnetic microtraps: Comparison of GRAPE and Krotov optimization schemes  

E-Print Network (OSTI)

We study optimal quantum control of the dynamics of trapped Bose-Einstein condensates: The targets are to split a condensate, residing initially in a single well, into a double well, without inducing excitation; and to excite a condensate from the ground to the first excited state of a single well. The condensate is described in the mean-field approximation of the Gross-Pitaevskii equation. We compare two optimization approaches in terms of their performance and ease of use, namely gradient ascent pulse engineering (GRAPE) and Krotov's method. Both approaches are derived from the variational principle but differ in the way the control is updated, additional costs are accounted for, and second order derivative information can be included. We find that GRAPE produces smoother control fields and works in a black-box manner, whereas Krotov with a suitably chosen step size parameter converges faster but can produce sharp features in the control fields.

Georg Jger; Daniel Reich; Michael H. Goerz; Christiane P. Koch; Ulrich Hohenester

2014-09-10T23:59:59.000Z

443

DISTINGUISHED AWARD FOUNDERS DAY 2012  

E-Print Network (OSTI)

____________________________________________________________ Business Phone __________________________ Home Phone _______________________ Cell Phone. Central Campus Drive Salt Lake City, UT 84112 Phone: Cassie @ 801.585.9012 FAX: 801.581.3711 E _________________________________ Phone _____________________________ Company

Provancher, William

444

Distinguishing triplet energy transfer and trap-assisted recombination in multi-color organic light-emitting diode with an ultrathin phosphorescent emissive layer  

SciTech Connect

An ultrathin layer of deep-red phosphorescent emitter tris(1-phenylisoquinoline) iridium (III) (Ir(piq){sub 3}) is inserted within different positions of the electron blocking layer fac-tris (1-phenylpyrazolato-N,C{sup 2?})-iridium(III) (Ir(ppz){sub 3}) to distinguish the contribution of the emission from the triplet exciton energy transfer/diffusion from the adjacent blue phosphorescent emitter and the trap-assisted recombination from the narrow band-gap emitter itself. The charge trapping effect of the narrow band-gap deep-red emitter which forms a quantum-well-like structure also plays a role in shaping the electroluminescent characteristics of multi-color organic light-emitting diodes. By accurately controlling the position of the ultrathin sensing layer, it is considerably easy to balance the white emission which is quite challenging for full-color devices with multiple emission zones. There is nearly no energy transfer detectable if 7 nm thick Ir(ppz){sub 3} is inserted between the blue phosphorescent emitter and the ultrathin red emitter.

Xue, Qin, E-mail: xueqin19851202@163.com; Liu, Shouyin [Department of Physical Science and Technology, Central China Normal University, Wuhan 430079 (China); Xie, Guohua; Chen, Ping; Zhao, Yi; Liu, Shiyong [State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012 (China)

2014-03-21T23:59:59.000Z

445

Effect of Optical Disorder and Single Defects on the Expansion of a Bose-Einstein Condensate in a One-Dimensional Waveguide  

SciTech Connect

We investigate the one-dimensional expansion of a Bose-Einstein condensate in an optical guide in the presence of a random potential created with optical speckles. With the speckle the expansion of the condensate is strongly inhibited. A detailed investigation has been carried out varying the experimental conditions and checking the expansion when a single optical defect is present. The experimental results are in good agreement with numerical calculations based on the Gross-Pitaevskii equation.

Fort, C.; Fallani, L.; Guarrera, V.; Lye, J.E.; Inguscio, M. [LENS, Dipartimento di Fisica and INFM, Universita di Firenze, via Nello Carrara 1, I-50019 Sesto Fiorentino, FI (Italy); Modugno, M. [LENS, Dipartimento di Matematica Applicata, Universita di Firenze and BEC-INFM Center, Universita di Trento, Povo (Italy); Wiersma, D.S. [LENS, Dipartimento di Fisica and INFM, Universita di Firenze, via Nello Carrara 1, I-50019 Sesto Fiorentino, FI (Italy); INFM-MATIS, Catania (Italy)

2005-10-21T23:59:59.000Z

446

Two-pion Bose-Einstein correlations in central PbPb collisions at sqrt(s_NN) = 2.76 TeV  

E-Print Network (OSTI)

The first measurement of two-pion Bose--Einstein correlations in central PbPb collisions at sqrt(s_NN) = 2.76 TeV at the Large Hadron Collider is presented. We observe a growing trend with energy now not only for the longitudinal and the outward but also for the sideward pion source radius. The pion homogeneity volume and the decoupling time are significantly larger than those measured at RHIC.

ALICE Collaboration; K. Aamodt; A. Abrahantes Quintana; D. Adamov; A. M. Adare; M. M. Aggarwal; G. Aglieri Rinella; A. G. Agocs; S. Aguilar Salazar; Z. Ahammed; N. Ahmad; A. Ahmad Masoodi; S. U. Ahn; A. Akindinov; D. Aleksandrov; B. Alessandro; R. Alfaro Molina; A. Alici; A. Alkin; E. Almarz Avia; T. Alt; V. Altini; S. Altinpinar; I. Altsybeev; C. Andrei; A. Andronic; V. Anguelov; C. Anson; T. Anti?i?; F. Antinori; P. Antonioli; L. Aphecetche; H. Appelshuser; N. Arbor; S. Arcelli; A. Arend; N. Armesto; R. Arnaldi; T. Aronsson; I. C. Arsene; A. Asryan; A. Augustinus; R. Averbeck; T. C. Awes; J. yst; M. D. Azmi; M. Bach; A. Badal; Y. W. Baek; S. Bagnasco; R. Bailhache; R. Bala; R. Baldini Ferroli; A. Baldisseri; A. Baldit; J. Bn; R. Barbera; F. Barile; G. G. Barnafldi; L. S. Barnby; V. Barret; J. Bartke; M. Basile; N. Bastid; B. Bathen; G. Batigne; B. Batyunya; C. Baumann; I. G. Bearden; H. Beck; I. Belikov; F. Bellini; R. Bellwied; E. Belmont-Moreno; S. Beole; I. Berceanu; A. Bercuci; E. Berdermann; Y. Berdnikov; L. Betev; A. Bhasin; A. K. Bhati; L. Bianchi; N. Bianchi; C. Bianchin; J. Biel?k; J. Biel?kov; A. Bilandzic; E. Biolcati; A. Blanc; F. Blanco; F. Blanco; D. Blau; C. Blume; M. Boccioli; N. Bock; A. Bogdanov; H. Bggild; M. Bogolyubsky; L. Boldizsr; M. Bombara; C. Bombonati; J. Book; H. Borel; C. Bortolin; S. Bose; F. Boss; M. Botje; S. Bttger; B. Boyer; P. Braun-Munzinger; L. Bravina; M. Bregant; T. Breitner; M. Broz; R. Brun; E. Bruna; G. E. Bruno; D. Budnikov; H. Buesching; O. Busch; Z. Buthelezi; D. Caffarri; X. Cai; H. Caines; E. Calvo Villar; P. Camerini; V. Canoa Roman; G. Cara Romeo; F. Carena; W. Carena; F. Carminati; A. Casanova Daz; M. Caselle; J. Castillo Castellanos; V. Catanescu; C. Cavicchioli; P. Cerello; B. Chang; S. Chapeland; J. L. Charvet; S. Chattopadhyay; S. Chattopadhyay; M. Cherney; C. Cheshkov; B. Cheynis; E. Chiavassa; V. Chibante Barroso; D. D. Chinellato; P. Chochula; M. Chojnacki; P. Christakoglou; C. H. Christensen; P. Christiansen; T. Chujo; C. Cicalo; L. Cifarelli; F. Cindolo; J. Cleymans; F. Coccetti; J. -P. Coffin; S. Coli; G. Conesa Balbastre; Z. Conesa del Valle; P. Constantin; G. Contin; J. G. Contreras; T. M. Cormier; Y. Corrales Morales; I. Corts Maldonado; P. Cortese; M. R. Cosentino; F. Costa; M. E. Cotallo; E. Crescio; P. Crochet; E. Cuautle; L. Cunqueiro; G. D'Erasmo; A. Dainese; H. H. Dalsgaard; A. Danu; D. Das; I. Das; A. Dash; S. Dash; S. De; A. De Azevedo Moregula; G. O. V. de Barros; A. De Caro; G. de Cataldo; J. de Cuveland; A. De Falco; D. De Gruttola; N. De Marco; S. De Pasquale; R. De Remigis; R. de Rooij; H. Delagrange; Y. Delgado Mercado; G. Dellacasa; A. Deloff; V. Demanov; E. Dnes; A. Deppman; D. Di Bari; C. Di Giglio; S. Di Liberto; A. Di Mauro; P. Di Nezza; T. Dietel; R. Divi; . Djuvsland; A. Dobrin; T. Dobrowolski; I. Domnguez; B. Dnigus; O. Dordic; O. Driga; A. K. Dubey; L. Ducroux; P. Dupieux; A. K. Dutta Majumdar; M. R. Dutta Majumdar; D. Elia; D. Emschermann; H. Engel; H. A. Erdal; B. Espagnon; M. Estienne; S. Esumi; D. Evans; S. Evrard; G. Eyyubova; C. W. Fabjan; D. Fabris; J. Faivre; D. Falchieri; A. Fantoni; M. Fasel; R. Fearick; A. Fedunov; D. Fehlker; V. Fekete; D. Felea; G. Feofilov; A. Fernndez Tllez; A. Ferretti; R. Ferretti; M. A. S. Figueredo; S. Filchagin; R. Fini; D. Finogeev; F. M. Fionda; E. M. Fiore; M. Floris; S. Foertsch; P. Foka; S. Fokin; E. Fragiacomo; M. Fragkiadakis; U. Frankenfeld; U. Fuchs; F. Furano; C. Furget; M. Fusco Girard; J. J. Gaardhje; S. Gadrat; M. Gagliardi; A. Gago; M. Gallio; P. Ganoti; C. Garabatos; R. Gemme; J. Gerhard; M. Germain; C. Geuna; A. Gheata; M. Gheata; B. Ghidini; P. Ghosh; M. R. Girard; G. Giraudo; P. Giubellino; E. Gladysz-Dziadus; P. Glssel; R. Gomez; L. H. Gonzlez-Trueba; P. Gonzlez-Zamora; H. Gonzlez Santos; S. Gorbunov; S. Gotovac; V. Grabski; R. Grajcarek; J. L. Gramling; A. Grelli; A. Grigoras; C. Grigoras; V. Grigoriev; A. Grigoryan; S. Grigoryan; B. Grinyov; N. Grion; P. Gros; J. F. Grosse-Oetringhaus; J. -Y. Grossiord; R. Grosso; F. Guber; R. Guernane; C. Guerra Gutierrez; B. Guerzoni; K. Gulbrandsen; H. Gulkanyan; T. Gunji; A. Gupta; R. Gupta; H. Gutbrod; . Haaland; C. Hadjidakis; M. Haiduc; H. Hamagaki; G. Hamar; J. W. Harris; M. Hartig; D. Hasch; D. Hasegan; D. Hatzifotiadou; A. Hayrapetyan; M. Heide; M. Heinz; H. Helstrup; A. Herghelegiu; C. Hernndez; G. Herrera Corral; N. Herrmann; K. F. Hetland; B. Hicks; P. T. Hille; B. Hippolyte; T. Horaguchi; Y. Hori; P. Hristov; I. H?ivn?ov; M. Huang; S. Huber; T. J. Humanic; D. S. Hwang; R. Ichou; R. Ilkaev; I. Ilkiv; M. Inaba; E. Incani; G. M. Innocenti; P. G. Innocenti; M. Ippolitov; M. Irfan; C. Ivan; A. Ivanov; M. Ivanov; V. Ivanov; A. Jacho?kowski; P. M. Jacobs; L. Jancurov

2011-01-17T23:59:59.000Z

447

Analysis of Bose-Einstein correlations at fixed multiplicities in TeV energy $pp$ collisions in the quantum optical approach  

E-Print Network (OSTI)

The multiplicity distribution and the two-particle Bose-Einstein correlations at fixed multiplicities observed in $pp$ collisions at $\\sqrt{s}=7$ TeV by the ALICE Collaboration are analyzed by the formulae obtained in the quantum optical approach. The chaoticity parameters in the inclusive and semi-inclusive events are estimated from the analysis. Multiplicity or $k_T$ dependence of longitudinal and transverse source radii are also estimated.

N. Suzuki; M. Biyajima

2013-03-23T23:59:59.000Z

448

On the global uniqueness for the Einstein-Maxwell-scalar field system with a cosmological constant. Part 1: Well posedness and breakdown criterion  

E-Print Network (OSTI)

This paper is the first part of a trilogy dedicated to the following problem: given spherically symmetric characteristic initial data for the Einstein-Maxwell-scalar field system with a cosmological constant $\\Lambda$, with the data on the outgoing initial null hypersurface given by a subextremal Reissner-Nordstrom black hole event horizon, study the future extendibility of the corresponding maximal globally hyperbolic development (MGHD) as a "suitably regular" Lorentzian manifold. In this first part we establish well posedness of the Einstein equations for characteristic data satisfying the minimal regularity conditions leading to classical solutions. We also identify the appropriate notion of maximal solution, from which the construction of the corresponding MGHD follows, and determine breakdown criteria. This is the unavoidable starting point of the analysis; our main results will depend on the detailed understanding of these fundamentals. In the second part of this series we study the stability of the radius function at the Cauchy horizon. In the third and final paper we show that, depending on the decay rate of the initial data, mass inflation may or may not occur; in fact, it is even possible to have (non-isometric) extensions of the spacetime across the Cauchy horizon as classical solutions of the Einstein equations.

Joo L. Costa; Pedro M. Giro; Jos Natrio; Jorge Drumond Silva

2014-10-23T23:59:59.000Z

449

Analyses of multiplicity distributions and Bose-Einstein correlations at the LHC by means of generalized Glauber-Lachs formula  

E-Print Network (OSTI)

Using the negative binomial distribution (NBD) and the generalized Glauber-Lachs (GGL) formula, we analyze the data on charged multiplicity distributions in the several pseudorapidity intervals |\\eta| < \\eta_c at 0.2 - 7 TeV by UA5 and ALICE Collaborations. We confirm that the KNO scaling holds among the multiplicity distributions with \\eta_c = 0.5 at \\sqrt{s} = 0.2 - 2.36 TeV and estimate the energy dependence of a parameter 1/k in NBD and parameters 1/k and \\gamma (the ratio of the average value of the coherent hadrons to that of the chaotic hadrons) in the GGL formula. Using empirical formulae for the parameters 1/k and \\gamma in the GGL formula, we predict the multiplicity distributions with \\eta_c = 0.5 at 7 and 14 TeV. Data on the second order Bose-Einstein correlations (BEC) at 0.9 and 2.36 TeV by ALICE and CMS Collaborations are also analyzed based on the GGL formula. Predictions for the third order BEC at 0.9 and 2.36 TeV are presented.

Takuya Mizoguchi; Minoru Biyajim

2012-07-04T23:59:59.000Z

450

The infinite red-shift surfaces of the Kerr and Kerr-Newman solutions of the Einstein field equations  

E-Print Network (OSTI)

In contrast to the Schwarzschild solution, the infinite red-shift surfaces and null surfaces of the Kerr solution to the axially-symmetric Einstein field equations are distinct. Some three-dimensional depictions of these surfaces are presented here for observers following the time-like Killing vector of the Kerr and Kerr-Newman solutions. Some similarities of the latter to the Reissner-Nordstrom solution are also discussed. In the case of the Kerr solution, the inner infinite red-shift surface terminates at the ring singularity. This is not the case for the Kerr-Newman solution where the infinite red-shift surface and the ring singularity have no points in common. The presence of charge severs the relation between the singularity and the infinite red-shift surface. This paper is also intended to fill a void in the literature where few, if any, adequate representations of the infinite red-shift surfaces and their relation to the singularity and horizons exist.

Gerald E. Marsh

2007-07-12T23:59:59.000Z

451

Coherent oscillations between two weakly coupled Bose-Einstein Condensates: Josephson effects, $?$-oscillations, and macroscopic quantum self trapping  

E-Print Network (OSTI)

We discuss the coherent atomic oscillations between two weakly coupled Bose-Einstein condensates. The weak link is provided by a laser barrier in a (possibly asymmetric) double-well trap or by Raman coupling between two condensates in different hyperfine levels. The Boson Josephson Junction (BJJ) dynamics is described by the two-mode non-linear Gross-Pitaevskii equation, that is solved analytically in terms of elliptic functions. The BJJ, being a $neutral$, isolated system, allows the investigations of new dynamical regimes for the phase difference across the junction and for the population imbalance, that are not accessible with Superconductor Josephson Junctions (SJJ). These include oscillations with either, or both of the following properties: 1) the time-averaged value of the phase is equal to $\\pi$ ($\\pi-phase$ oscillations); 2) the average population imbalance is nonzero, in states with ``macroscopic quantum self-trapping'' (MQST). The (non-sinusoidal) generalization of the SJJ `ac' and `plasma' oscillations and the Shapiro resonance can also be observed. We predict the collapse of experimental data (corresponding to different trap geometries and total number of condensate atoms) onto a single universal curve, for the inverse period of oscillations. Analogies with Josephson oscillations between two weakly coupled reservoirs of $^3$He-B and the internal Josephson effect in $^3$He-A are also discussed.

S. Raghavan; A. Smerzi; S. Fantoni; S. R. Shenoy

1997-06-23T23:59:59.000Z

452

The University of Saskatchewan is charting a course for its future. We are determined to make the changes that are required to place the University of Saskatchewan among the most distinguished  

E-Print Network (OSTI)

#12;1 The University of Saskatchewan is charting a course for its future. We are determined to make the changes that are required to place the University of Saskatchewan among the most distinguished and to serve the many-sided needs of the community by supporting Saskatchewan's then foremost industry

Saskatchewan, University of

453

Evaluating the cost-effectiveness of DR programs/tariffs: Questions for Pacific Northwest utilities o Conceptually, do you distinguish among different types of DR resources in your resource  

E-Print Network (OSTI)

Northwest utilities o Conceptually, do you distinguish among different types of DR resources in your of analytic process does your utility use to select DR programs/pricing tariffs (e.g., screening analysis vs. resource portfolio planning)? o In valuing the potential benefits of DR programs, how does your utility

454

Discussion on the energy content of the galactic dark matter Bose-Einstein condensate halo in the Thomas-Fermi approximation  

E-Print Network (OSTI)

We show that the galactic dark matter halo, considered composed of an axionlike particles Bose-Einstein condensate \\cite{pir12} trapped by a self-graviting potential \\cite{boh07}, may be stable in the Thomas-Fermi approximation since appropriate choices for the dark matter particle mass and scattering length are made. The demonstration is performed by means of the calculation of the potential, kinetic and self-interaction energy terms of a galactic halo described by a Boehmer-Harko density profile. We discuss the validity of the Thomas-Fermi approximation for the halo system, and show that the kinetic energy contribution is indeed negligible.

J. C. C. de Souza; M. O. C. Pires

2014-01-23T23:59:59.000Z

455

Rapidity and transverse momentum dependence of pion-pion Bose-Einstein correlations measured at 20, 30, 40, 80, and 158 AGeV beam energy  

E-Print Network (OSTI)

Preliminary results on pion-pion Bose-Einstein correlations in central Pb+Pb collisions measured by the NA49 experiment are presented. Rapidity as well as transverse momentum dependence of the HBT-radii are shown for collisions at 20, 30, 40, 80, and 158 AGeV beam energy. Including results from AGS and RHIC experiments only a weak energy dependence of the radii is observed. Based on hydrodynamical models parameters like lifetime and geometrical radius of the source are derived from the dependence of the radii on transverse momentum.

Stefan Kniege; for the NA49 Collaboration

2004-03-17T23:59:59.000Z

456

Critical properties at the field-induced Bose-Einstein condensation on NiCl2-4SC(NH2)2  

SciTech Connect

We report new magnetization measurements on the spin-gap compound NiCl{sub 2}-4SC(NH{sub 2}){sub 2} at the low-field boundary of the magnetic field induced ordering. The critical density of the magnetization is analyzed in terms of a Bose-Einstein condensation (BEC) of bosonic quasiparticles. The analysis of the magnetization at the transition leads to the conclusion for the preservation of the U(1) symmetry, as required for BEC. The experimental data are well described by quantum Monte Carlo simulations.

Sengupta, Pinaki [Los Alamos National Laboratory; Al-hassenieh, Khaled A [Los Alamos National Laboratory; Jaime, Macelo [Los Alamos National Laboratory; Paduan-filho, Armando [Los Alamos National Laboratory

2009-01-01T23:59:59.000Z

457

On the global uniqueness for the Einstein-Maxwell-scalar field system with a cosmological constant. Part 3: Mass inflation and extendibility of the solutions  

E-Print Network (OSTI)

This paper is the third part of a trilogy dedicated to the following problem: given spherically symmetric characteristic initial data for the Einstein-Maxwell-scalar field system with a cosmological constant $\\Lambda$, with the data on the outgoing initial null hypersurface given by a subextremal Reissner-Nordstrom black hole event horizon, study the future extendibility of the corresponding maximal globally hyperbolic development as a "suitably regular" Lorentzian manifold. In the first part of this series we established the well posedness of the characteristic problem, whereas in the second part we studied the stability of the radius function at the Cauchy horizon. In this third and final paper we show that, depending on the decay rate of the initial data, mass inflation may or may not occur. When the mass is controlled, it is possible to obtain continuous extensions of the metric across the Cauchy horizon with square integrable Christoffel symbols. Under slightly stronger conditions, we can bound the gradient of the scalar field. This allows the construction of (non-isometric) extensions of the maximal development which are classical solutions of the Einstein equations. Our results provide evidence against the validity of the strong cosmic censorship conjecture when $\\Lambda>0$.

Joo L. Costa; Pedro M. Giro; Jos Natrio; Jorge Drumond Silva

2014-07-18T23:59:59.000Z

458

VOLUME 82, NUMBER 5 P H Y S I C A L R E V I E W L E T T E R S 1 FEBRUARY 1999 Measurements of Collective Collapse in a Bose-Einstein Condensate  

E-Print Network (OSTI)

, the condensate will collapse by a collective process. The measured spread in condensate number for samples of 7. This cycle of condensate growth and collapse repeats until the gas comes to equilibrium with N0 , Nm. We have of Collective Collapse in a Bose-Einstein Condensate with Attractive Interactions C. A. Sackett, J. M. Gerton, M

Sackett, Cass

459

Analytical study of the nonlinear Schroedinger equation with an arbitrary linear time-dependent potential in quasi-one-dimensional Bose-Einstein condensates  

SciTech Connect

Under investigation in this paper is a nonlinear Schroedinger equation with an arbitrary linear time-dependent potential, which governs the soliton dynamics in quasi-one-dimensional Bose-Einstein condensates (quasi-1DBECs). With Painleve analysis method performed to this model, its integrability is firstly examined. Then, the distinct treatments based on the truncated Painleve expansion, respectively, give the bilinear form and the Painleve-Baecklund transformation with a family of new exact solutions. Furthermore, via the computerized symbolic computation, a direct method is employed to easily and directly derive the exact analytical dark- and bright-solitonic solutions. At last, of physical and experimental interests, these solutions are graphically discussed so as to better understand the soliton dynamics in quasi-1DBECs.

Lue Xing [School of Science, P.O. Box 49, Beijing University of Posts and Telecommunications, Beijing 100876 (China)], E-mail: xinglv655@yahoo.com.cn; Tian Bo [School of Science, P.O. Box 49, Beijing University of Posts and Telecommunications, Beijing 100876 (China); State Key Laboratory of Software Development Environment, Beijing University of Aeronautics and Astronautics, Beijing 100083 (China); Key Laboratory of Optical Communication and Lightwave Technologies, Ministry of Education, Beijing University of Posts and Telecommunications, Beijing 100876 (China); Xu Tao; Cai Kejie; Liu Wenjun [School of Science, P.O. Box 49, Beijing University of Posts and Telecommunications, Beijing 100876 (China)

2008-10-15T23:59:59.000Z

460

OSTI, US Dept of Energy, Office of Scientific and Technical Information |  

Office of Scientific and Technical Information (OSTI)

Albert Einstein Topic Albert Einstein Topic "The New Einsteins Will Be Scientists Who Share." by Kate Bannan 01 Nov, 2011 in Science Communications In an October 29, 2011 Wall Street Journal article, "The New Einsteins Will Be Scientists Who Share," Dr. Michael Nielsenstated that networked science has the potential to speed up dramatically the rate of discovery across all of science, and that we may well see the day-to-day process of scientific research change more fundamentally over the next few decades than over the past three centuries. He also noted that there are major obstacles to achieving this goal, including the lack of a systematic effort by scientists to adopt new tools of discovery or to share data - because they are busy, they may believe it's a diversion from their "real" work or because they may not be familiar with the means to do so easily.

Note: This page contains sample records for the topic "albert einstein distinguished" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

Albert Lea, Minnesota: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

Lea, Minnesota: Energy Resources Lea, Minnesota: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 43.6485683°, -93.3624319° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":43.6485683,"lon":-93.3624319,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

462

Calbet, Albert, and Yves T. Prairie, Mesozooplankton grazing and ...  

Science Journals Connector (OSTI)

ter flux and planktonic new production in the deep ocean. ... J. Fish. Res. Board Can. 30: 409434. . 1975. A note concerning Professor Jolicoeur's comments.

kbailey

2003-05-10T23:59:59.000Z

463

Albert Munsell and His Impact on Soil Science and  

E-Print Network (OSTI)

mill tailings, radium processing residues, oil field brines, and indoor radon. He has participated in the IAEA International Chernobyl Project, and in studies of radionuclide contaminants in the Arctic regions

Zanibbi, Richard

464

Albert Camus' moral philosophy and the ethics of tragic freedom.  

E-Print Network (OSTI)

??"Date of submission 10/31/2011" Bibliography: pages 233-240. Introduction Camus and Christianity: Christian metaphysics and neoplatonism Camus' philosophy of nature and human happiness: a (more)

Larson, Jerry

2012-01-01T23:59:59.000Z

465

ALCARAZ, MIGUEL, ENRIC SAIZ, AND ALBERT CALBET. Small ...  

Science Journals Connector (OSTI)

solar heating and wind, and has an important role in controlling ... and Technology). The experimental ..... Turbulence, phytoplankton cell size, and the structure...

1999-12-21T23:59:59.000Z

466

Interior, J. A. Krug, Secretary Service, Albert M. Day, Director  

E-Print Network (OSTI)

restricted, production and trade. Equipment--Locally manuf~ctured air-pumping equipment is available for most reqUirements, but rubber hose, diving suits, and helmets are in very short supply. Existing equipment.eper )waters, where better qualities and larger quantities could be obtained. Production--Available unofficial

467

SMALL-SCALE STRUCTURE VIA FLOWS ALBERT M. FISHER  

E-Print Network (OSTI)

sets 6 5. The extended Cantor function (or Devil's Staircase) 7 6. The scenery ow 8 7. The Fuchsian. For a smooth embedded manifold one sees just the tangent space asymptotically, but for fractal sets and related as owing on a uni#12;cation of the dynamical and the parameter space. For fractal sets, the translation

Provence Aix-Marseille I, Université de

468

Albert-Ludwigs-Universitt Freiburg Equal Opportunity Plan  

E-Print Network (OSTI)

active in the area of equal opportunity for over two decades. The nu- merous projects and measures 51 52 52 52 53 53 53 51 Graduates (1st field, 2nd course of study)4 46 48 49 50 51 53 52 53 53 54 51 on p. 51. 2) Data collected at the beginning of the winter semester, starting with WS 1998/99. 3) See

Schindelhauer, Christian

469

Defender (Mis)coordination in Security Games Albert Xin Jiang  

E-Print Network (OSTI)

key airports and ports in the United States (e.g., Los Angeles, Boston, New York) as well of resources. However, in real-life scenarios (such as protection of the port of Boston) this is not the case as in protecting transportation infrastruc- ture (international flights and metro trains) [Tambe, 2011; Shieh et al

Procaccia, Ariel

470

Alexander Albert Klinik fr Kardiovaskulre Chirurgie, Heinrich Heine-  

E-Print Network (OSTI)

konventionelle OP Valvuloplastie (BAV) TAVI femoral TAVI apikal #12;Transcatheter Aortic Valve Implantation (TAVI.718281828... o is the constant of the logistic regression equation = -4.789594 i is the coefficient is the coefficient of the variable Xi in the logistic regression

Hennig, Christian

471

Photofragment imaging of methane Albert J. R. Heck  

E-Print Network (OSTI)

on CH4. © 1996 American Institute of Physics. S0021-9606 96 03810-3 INTRODUCTION Knowledge about the photo dissociation pathways of the methane molecule is of fundamental importance as it is of central, the photochemistry of methane in the atmosphere is mostly driven by intense solar atomic emission lines

Zare, Richard N.

472

New Buildings of the Royal Albert Memorial University College  

Science Journals Connector (OSTI)

... the history of education in Devonshire, for the formal opening of the new University College buildings by the Lord-Lieutenant of the county was attended by such a gathering of influential ... the old class-rooms and laboratories. This difficulty is no more, for the new buildings supply all that is essential for the needs of the present and for several years ...

1911-10-26T23:59:59.000Z

473

E-Print Network 3.0 - agar plates stimulate Sample Search Results  

NLE Websites -- All DOE Office Websites (Extended Search)

at 37C for 30min, mix with top agar) and plate... .5 or 7.8 150mM NaCl 10mM MgSO4 2mM CaCl2 "Phage" agar ... Source: Albert Einstein College of Medicine, Department of...

474

E-Print Network 3.0 - agar Sample Search Results  

NLE Websites -- All DOE Office Websites (Extended Search)

at 37C for 30min, mix with top agar) and plate... .5 or 7.8 150mM NaCl 10mM MgSO4 2mM CaCl2 "Phage" agar plates (for 1 liter) Middlebrook 7H9 broth (Difco Source: Albert Einstein...

475

E-Print Network 3.0 - agar manitol salado Sample Search Results  

NLE Websites -- All DOE Office Websites (Extended Search)

at 37C for 30min, mix with top agar) and plate... .5 or 7.8 150mM NaCl 10mM MgSO4 2mM CaCl2 "Phage" agar plates (for 1 liter) Middlebrook 7H9 broth (Difco Source: Albert Einstein...

476

That quantum mechanics is a probabilistic theory was, by 1964, an old but still troubling story. The fact that identical  

E-Print Network (OSTI)

mechanics was famously expressed in Albert Einstein's assertion that "God doesn't play dice." By 1964 most happens after t1 but also for what happened in the past. Suppose we start with an ensemble of particles subject each particle to some measurement and then we perform a final measurement at t1. We can then split

Wüthrich, Christian

477

Alignment procedures for micro-optics Matthias Mohaupt, Erik Beckert, Ramona Eberhardt, Andreas Tnnermann  

E-Print Network (OSTI)

Alignment procedures for micro-optics Matthias Mohaupt, Erik Beckert, Ramona Eberhardt, Andreas T�nnermann Fraunhofer Institute for Applied Optics and Precision Engineering Albert-Einstein-Strasse 7, D-07745 Jena. The alignment procedure is an important step in the process chain of the assembly of micro-optical components

Boyer, Edmond

478

BRANDEIS UNIVERSITY FACULTY SENATE  

E-Print Network (OSTI)

Brandeis's story to the public. When questioned about the University's brand and identity, Ms. Miles answered that the logo is the University's brand identity. Brandeis is a research university with a long to the marketing of his image. Ms. Miles said that Brandeis had a real connection with Albert Einstein. She added

Fraden, Seth

479

A laboratory experiment from the Little Shop of Physics at  

E-Print Network (OSTI)

1 A laboratory experiment from the Little Shop of Physics at Colorado State University CMMAP Reach a short wavelength. Of course, there's more to the spectrum than this; beyond the red is the longer was brighter, and clearly had more energy, but something about it was lacking. It was Albert Einstein who came

Hardy, Darel

480

A Functional Cancer Genomics Screen Identifies a Druggable Synthetic Lethal Interaction between MSH3 and PRKDC  

Science Journals Connector (OSTI)

...Hospital of Cologne, Cologne, Germany; and 5 Michael F. Price Center, Albert Einstein College of Medicine, Bronx, New York...pathways are commonly observed in human tumors and are thought to fuel a mutator phenotype (33-35 ). For instance, cancer genome...

Felix Dietlein; Lisa Thelen; Mladen Jokic; Ron D. Jachimowicz; Laura Ivan; Gero Knittel; Uschi Leeser; Johanna van Oers; Winfried Edelmann; Lukas C. Heukamp; and H. Christian Reinhardt

2014-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "albert einstein distinguished" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


481

Wavefunction of the Universe on the Landscape  

E-Print Network (OSTI)

This talk reviews the proposal for dynamically selecting the most probable wavefunction of the universe propagating on the landscape of string theory, by means of quantum cosmology. Talk given at 'Albert Einstein Century International Conference'-UNESCO, Paris July 18-22 2005.

Laura Mersini-Houghton

2005-12-23T23:59:59.000Z

482

Effect of capping material on interfacial ferromagnetism in FeRh thin films C. Baldasseroni,1,a)  

E-Print Network (OSTI)

O and Au by Ding et al.13 and by magnetic depth profile mod- eling of polarized neutron reflectometry (PNRH, Albert-Einstein-Stra?e 15, D-12489 Berlin, Germany 7 NIST Center for Neutron Research, National Institute was studied by x-ray magnetic circular dichroism in photoemission electron microscopy and polarized neutron

Hellman, Frances

483

A jet plane is fast, and a snail is slow. But what exactly does this mean? The speed of an object  

E-Print Network (OSTI)

/hr). What is speed, and how do we measure it? How fast, Is Fast? The fastest land animal is the Cheetah, Albert Einstein showedthatnothingcanbeacceleratedtospeeds faster than the speed of light (186,000 milesThat's A jet plane is fast, and a snail is slow. But what exactly does this mean? The speed

484

Shahidi Named Distinguished Professor - Department of ...  

E-Print Network (OSTI)

Dec 15, 2001 ... Next year,. I'll be on sabbatical at Ohio State to learn something .... reciprocity; Keefe Roedersheimer of Northern Kentucky, applied math and ..... front of each term and the powers of x and y in each .... Bergman Prize in 1990.

Sally

2002-08-29T23:59:59.000Z

485

Distinguished Alumni Awards Nomination Form 2008  

E-Print Network (OSTI)

________________________________________________________ Business Phone ______________________ Home Phone _____________________ Cell Phone _________________E Drive Salt Lake City, UT 84112 Phone: 581-6995 FAX: 581-3711 Nominee Information Name _______________________________________ Phone_______________________________ Company

Capecchi, Mario R.

486

DISTINGUISHED ALUMNI AWARD FOUNDERS DAY 2013  

E-Print Network (OSTI)

____________________________________________________________ Business Phone __________________________ Home Phone _______________________ Cell Phone 155 S. Central Campus Drive Salt Lake City, UT 84112 Phone: Cassie Taylor, 801-585-9012 FAX: 801 _________________________________ Phone _____________________________ Company

Provancher, William

487

Neutron Activation for Distinguishing Cascade Range Pyroclastics  

Science Journals Connector (OSTI)

...unconsolidated sediment, such as glacial till, rather than solid rock. Glacial till underlies the Greenland ice sheet at Camp Century (4). Liquid water was encountered at the ice-rock interface, clear evidence that the bottom of the ice sheet is...

Arthur A. Theisen; Glenn A. Borchardt; Moyle E. Harward; Roman A. Schmitt

1968-09-06T23:59:59.000Z

488

West Virginia University 1 Distinguished Professors  

E-Print Network (OSTI)

Professor of Outstanding Teaching · Joyce E. McConnell, William J. Maier, Jr. Dean and Thomas R. Goodwin of Social Sciences · Lisa DiBartolomeo, Armand E. and Mary W. Singer Professor in the Humanities · Charles R. DiSalvo, Woodrow A. Potesta Professor of Law · Joanne R. Duffy, West Virginia University Hospital

Mohaghegh, Shahab

489

John R. Lloyd University Distinguished Professor  

E-Print Network (OSTI)

the lines of the magnetic field in response to an appli- cation of a magnetic field. The stronger the field to a magnetic field. As this change occurs, the specific values of the physical properties are a function property response to direct magnetic field excitation. Permeabil- ity, resistivity and permittivity changes

Radcliffe, Clark J.

490

DR. LAURENCE STEINBERG DISTINGUISHED UNIVERSITY PROFESSOR AND  

E-Print Network (OSTI)

ROOM 2010, EDUCATION BUILDING THE SCIENCE OF ADOLESCENT BRAIN DEVELOPMENT AND PUBLIC POLICY IN THIS TALK, I ASK WHETHER AND HOW THE SCIENCE OF ADOLESCENT BRAIN DEVELOPMENT SHOULD INFORM PUBLIC AND LEGAL POLICIES AFFECTING YOUNG PEOPLE. I FIRST REVIEW THE FINDINGS FROM RECENT STUDIES OF BRAIN DEVELOPMENT

Rose, Michael R.

491

BERKELEY CATALYSIS CENTER Distinguished Lecture Series  

E-Print Network (OSTI)

® combustion module in Sonoma marks the first commercial application of a natural gas-fired catalytic combustion device for power generation after almost 30 years of R&D world-wide. The module in the 9.5-atm KHI of a lean pre-burner and highly efficient fuel/air mixer. PdO catalysts under operation for power generation

Iglesia, Enrique

492

The 2008 Fogelman College Distinguished Speaker Series  

E-Print Network (OSTI)

, and the effects of tariffs and oil prices on the macro-economy. His current research focuses on inter will discuss Global Pricing Strategies. Rao received his Ph.D. from the University of Pennsylvania's Wharton for marketing research and marketing strategy. His publications have dealt with such topics as dynamic pricing

Dasgupta, Dipankar

493

Optically active biological particle distinguishing apparatus  

DOE Patents (OSTI)

The disclosure is directed to organic particle sorting and identification. High frequency pulses of circularly polarized light, alternating between left and right, intersect a fast moving stream of organic particles. Circular intensity differential scattering and linear intensity differential scattering are monitored to uniquely identify a variety of organic particles.

Salzman, Gary C. (Los Alamos, NM); Kupperman, Robert H. (Washington, DC)

1989-01-01T23:59:59.000Z

494

Distinguished Hampton University Professor Joins Jefferson Lab...  

NLE Websites -- All DOE Office Websites (Extended Search)

Facility. Hall A is one of four experimental halls at Jefferson Lab, a world-leading nuclear physics research facility located in Newport News. As Group Leader, Keppel will...

495

Copper oxide superconductors: A distinguishable thermodynamic state  

Science Journals Connector (OSTI)

The temperature dependence of the resistivity and Seebeck coefficient for the two p-type systems La2CuO4+?, 0???0.09, and La2-xSrxCuO4, 0?x?0.3, are reported and interpreted in the context of overall phase diagrams. Above room temperature, the La2CuO4+? system tends to lose oxygen at 1 atm O2; superconductive samples exhibit a first-order loss of oxygen above 500 K to revert to the antiferromagnetic phase. Below a transition temperature Ts?300 K, compositions with 0

J. B. Goodenough, J.-S. Zhou, and J. Chan

1993-03-01T23:59:59.000Z

496

Zerkle wins Governor's Distinguished Public Service award  

NLE Websites -- All DOE Office Websites (Extended Search)

and children's welfare. She is the codirector of the annual Tour de Los Alamos bicycle race, now in its 38th year. Last year's tour drew more than 200 cyclists, benefiting...

497

Exact solutions for generalized variable-coefficients Ginzburg-Landau equation: Application to Bose-Einstein condensates with multi-body interatomic interactions  

SciTech Connect

We present a double-mapping method (D-MM), a natural combination of a similarity with F-expansion methods, for obtaining general solvable nonlinear evolution equations. We focus on variable-coefficients complex Ginzburg-Landau equations (VCCGLE) with multi-body interactions. We show that it is easy by this method to find a large class of exact solutions of Gross-Pitaevskii and Gross-Pitaevskii-Ginzburg equations. We apply the D-MM to investigate the dynamics of Bose-Einstein condensation with two- and three-body interactions. As a surprising result, we obtained that it is very easy to use the built D-MM to obtain a large class of exact solutions of VCCGLE with two-body interactions via a generalized VCCGLE with two- and three-body interactions containing cubic-derivative terms. The results show that the proposed method is direct, concise, elementary, and effective, and can be a very effective and powerful mathematical tool for solving many other nonlinear evolution equations in physics.

Kengne, E. [National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190 (China); Departement d'informatique et d'ingenierie, Universite du Quebec en Outaouais, 101 St-Jean-Bosco, Succursale Hull, Gatineau (PQ) J8Y 3G5 (Canada); Department of Mathematics and Statistics, Faculty of Science, University of Ottawa, 585 King Edward Ave., Ottawa, Ontario K1N 6N5 (Canada); Lakhssassi, A. [Departement d'informatique et d'ingenierie, Universite du Quebec en Outaouais, 101 St-Jean-Bosco, Succursale Hull, Gatineau(PQ) J8Y 3G5 (Canada); Vaillancourt, R. [Department of Mathematics and Statistics, Faculty of Science, University of Ottawa, 585 King Edward Ave., Ottawa, Ontario K1N 6N5 (Canada); Liu, Wu-Ming [National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190 (China)

2012-12-15T23:59:59.000Z

498

Analyses of multiplicity distributions with ?_c and Bose-Einstein correlations at LHC by means of generalized Glauber-Lachs formula  

E-Print Network (OSTI)

Using the negative binomial distribution (NBD) and the generalized Glauber-Lachs (GGL) formula, we analyze the data on charged multiplicity distributions with pseudo-rapidity cutoffs \\eta_c at 0.9, 2.36, and 7 TeV by ALICE Collaboration and at 0.2, 0.54, and 0.9 TeV by UA5 Collaboration. We confirm that the KNO scaling holds among the multiplicity distributions with \\eta_c = 0.5 at \\sqrt{s} = 0.2\\sim2.36 TeV and estimate the energy dependence of a parameter 1/k in NBD and parameters 1/k and \\gamma (the ratio of the average value of the coherent hadrons to that of the chaotic hadrons) in the GGL formula. Using empirical formulae for the parameters 1/k and \\gamma in the GGL formula, we predict the multiplicity distributions with \\eta_c = 0.5 at 7 and 14 TeV. Data on the 2nd order Bose-Einstein correlations (BEC) at 0.9 TeV by ALICE Collaboration and 0.9 and 2.36 TeV by CMS Collaboration are also analyzed based on the GGL formula. Prediction for the 3rd order BEC at 0.9 and 2.36 TeV are presented. Moreover, the information entropy is discussed.

Takuya Mizoguchi; Minoru Biyajima

2010-10-09T23:59:59.000Z

499

On the global uniqueness for the Einstein-Maxwell-scalar field system with a cosmological constant. Part 2: Structure of the solutions and stability of the Cauchy horizon  

E-Print Network (OSTI)

This paper is the second part of a trilogy dedicated to the following problem: given spherically symmetric characteristic initial data for the Einstein-Maxwell-scalar field system with a cosmological constant $\\Lambda$, with the data on the outgoing initial null hypersurface given by a subextremal Reissner-Nordstrom black hole event horizon, study the future extendibility of the corresponding maximal globally hyperbolic development as a "suitably regular" Lorentzian manifold. In the first paper of this sequence, we established well posedness of the characteristic problem with general initial data. In this second paper, we generalize the results of Dafermos on the stability of the radius function at the Cauchy horizon by including a cosmological constant. This requires a considerable deviation from the strategy followed by Dafermos, focusing on the level sets of the radius function instead of the red-shift and blue-shift regions. We also present new results on the global structure of the solution when the free data is not identically zero in a neighborhood of the origin. In the third and final paper, we will consider the issue of mass inflation and extendibility of solutions beyond the Cauchy horizon.

Joo L. Costa; Pedro M. Giro; Jos Natrio; Jorge Drumond Silva

2014-07-18T23:59:59.000Z

500

Quantum discord is Bohrs notion of non-mechanical disturbance introduced to counter the EinsteinPodolskyRosen argument  

SciTech Connect

By rigorously formalizing the EinsteinPodolskyRosen (EPR) argument, and Bohrs reply, one can appreciate that both arguments were technically correct. Their opposed conclusions about the completeness of quantum mechanics hinged upon an explicit difference in their criteria for when a measurement on Alices system can be regarded as not disturbing Bobs system. The EPR criteria allow their conclusionincompletenessto be reached by establishing the physical reality of just a single observable q (not of both q and its conjugate observable p), but I show that Bohrs definition of disturbance prevents the EPR chain of reasoning from establishing even this. Moreover, I show that Bohrs definition is intimately related to the asymmetric concept of quantum discord from quantum information theory: if and only if the joint state has no Alice-discord, she can measure any observable without disturbing (in Bohrs sense) Bobs system. Discord can be present even when systems are unentangled, and this has implications for our understanding of the historical development of notions of quantum nonlocality. -- Highlights: Both the EPR argument, and Bohrs reply, were technically correct. Their opposed conclusions came from different criteria for disturbance. Bohrs criterion works against even the simplified (one-variable) EPR argument. Bohrs criterion for disturbance is intimately related to quantum discord. This illuminates the historical development of notions of quantum nonlocality.

Wiseman, Howard M., E-mail: H.Wiseman@Griffith.edu.au

2013-11-15T23:59:59.000Z