USF System USF USFSP USFSM Number: USF3.027
Meyers, Steven D.
's (USF System) commitment to the academic honesty and personal integrity of its university communityREGULATION USF System USF USFSP USFSM Number: USF3.027 Subject: Academic Integrity of Students-3-15 _____________________________________________________________________________________________ I. PURPOSE & INTENT Academic integrity is the foundation of the University of South Florida System
USF System USF USFSP USFSM Number: 0-314
Meyers, Steven D.
OF POLICY A. All proposals for fixed-price sponsored projects must be processed using USF System policies and procedures for sponsored projects administration. #12;B. Deficits or cost overruns on fixed-price sponsoredPOLICY USF System USF USFSP USFSM Number: 0-314 Subject: Financial Closeout of Fixed-price
USF Graduate Catalog 20142015 http://health.usf.edu/publichealth/
Meyers, Steven D.
and Global Comm Disease revise Health Care Org and Management revise prereqs Health PoliciesUSF Graduate Catalog 20142015 708 http://health.usf.edu/publichealth/ SECTION 23 of Public Health 709 http://health.usf.edu/publichealth/ Changes to Note The follow curricular
USF PHYSICAL PLANT VEHICLE MAINTENANCE
Meyers, Steven D.
USF PHYSICAL PLANT VEHICLE MAINTENANCE TELEPHONE NO. 974-2500 GAS PUMP AUTHORIZATION FORM PLEASE. _____ THE FOLLOWING PERSONNEL ARE AUTHORIZED BY THIS DOCUMENT TO PUMP GASOLINE/DIESEL FUEL FOR OUR USF OWNED VEHICLES
Meyers, Steven D.
The USF Health Heart Institute CARING FOR THE HEART #12;#12;THE USF HEALTH HEART INSTITUTE | UNIVERSITY OF SOUTH FLORIDA | USF HEALTH DOWNTOWN 3 TheUSFHealthHeartInstitute TheUSFHealthHeartInstituteBusinessPlan n The USF Heart Institute will create new and more effective treatments for one of Florida's leading
USF System USF USFSP USFSM Number: 5-014
Meyers, Steven D.
POLICY USF System USF USFSP USFSM Number: 5-014 Subject: Asset/Property Management Responsible, excluding real property. II. STATEMENT OF POLICY A. Asset Management Services is delegated the authority, fabrication or gift, which is practicable to identify by marking will be visibly marked by Asset Management
USF System USF USFSP USFSM Number: 0-307
Meyers, Steven D.
of radioactive waste generated in research laboratories and educational and teaching environmentsPOLICY USF System USF USFSP USFSM Number: 0-307 Subject: Radioactive Waste Disposal Fees governing fee assessments pertinent to the disposal of radioactive waste. A fee is charged to active users
USF System USF USFSP USFSM Number: 6-023
Meyers, Steven D.
to the University of South Florida's Tampa Campus Municipal Separate Storm Sewer System (MS4) in compliance is any discharge to the USF Tampa Campus storm sewer system that is not composed entirely of stormwater contaminant to the USF Tampa Campus storm sewer system. c. Shall report any observed illicit discharges
USFS | Open Energy Information
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousPlasmaP a gHigh4-FD-a < RAPIDâ€Ž |SpaceThe GermanUSFS Humboldt-Toiyabe National Forest Jump to:
USF System USF USFSP USFSM Number: 0-512
Meyers, Steven D.
Networks Classroom technologies The Information Technology Management Council (ITMC) consists on the implementation of this policy are described below. II. INFORMATION TECHNOLOGY MANAGEMENT COUNCIL (ITMC) The USF Information Technology Management Council is the highest level governance group for recommendations
USF System USF USFSP USFSM Number: 5-009
Meyers, Steven D.
to establish all postage meter contracts, maintain USF System mailing permits, enter into agreements with the U with each campus manager of campus mail services. 2. Departments may maintain a small inventory of postage
USF System USF USFSP USFSM Number: 0-024
Meyers, Steven D.
such records and documents. If an investigation reveals suspected criminal activity, the University Police. University Audit and Compliance has free and unrestricted access to all USF System and related entity records
Meyers, Steven D.
If approved, USF's Morsani College of Medicine and the USF Heart Institute would be part to colocate the USF Morsani College of Medicine and the new USF Heart Institute in downtown Tampa on land place the Morsani College of Medicine and the USF Heart Institute closer to our major teaching affiliate
USF System USF USFSP USFSM Number: 5-012
Meyers, Steven D.
and methods for the Records Management Program for the USF System, as required by Chapter 119 and Chapter 257 and disposition of records. The Purchasing Director is the University Records Management Liaison Officer with the State of Florida Public Records Disposal Procedures, and such schedules are followed in the management
USF Graduate Catalog 20142015 680http://health.usf.edu/nocms/nursing/
Meyers, Steven D.
) Nursing Education (NED) Pediatric Health Nursing (NPH) PsychiatricMental Health Nursing (NPMUSF Graduate Catalog 20142015 680http://health.usf.edu/nocms/nursing/ SECTION 20 CCOOLLLLEEGGEE OOFF NNUURRSSIINNGG #12;USF Graduate Catalog 20142015 Section 20 College of Nursing 681
Library hours vary by semester; Check lib.usf.edu After midnight, USF ID required
Meyers, Steven D.
Library hours vary by semester; Check lib.usf.edu After midnight, USF ID required lib.usf.edu (813? To learn how to: Integrate the library into Canvas, Invite a librarian to join your course's Canvas site, or Request a tailored research guide or library research assignment, Contact: Susan Silver | ssilver
Scaffold Training Session Bill Danfield (USFS) and Adam Wiese (USFS) lead an Aspen FACE
Scaffold Training Session Bill Danfield (USFS) and Adam Wiese (USFS) lead an Aspen FACE site in each Aspen FACE ring without receiving training. Kurt Pregitzer Returns Adam Wiese (left) leads a training session for scaffold climbing. Kurt Pregitzer (Aspen FACE Steering Committee) returned to MTU
http://health.usf.edu/publichealth/ SECTION 21
Meyers, Steven D.
Management Conc. 12/17/12 Revise GRE for concentrations: Health Care Organizations and Management 702 http://health.usf.edu/publichealth/ SECTION 21 CCOOLLLLEEGGEE OOFF PPUUBBLLIICC HHEEAALLTTHH #12;USF Tampa Graduate Catalog 20132014 Section 21 College of Public Health
USFS West Wide Programmatic Environmental Impact Statement Record...
Programmatic Environmental Impact Statement Record of Decision Jump to: navigation, search OpenEI Reference LibraryAdd to library Legal Document- OtherOther: USFS West Wide...
USF Physical Plant Recycling Program Updated November 2013
Meyers, Steven D.
Recyclables (Bulbs, Tires, etc.) 7 tons #12;Recycle Ratio for FY 2012/2013 · Total waste generated: 3419 tonsUSF Physical Plant Recycling Program Updated November 2013 #12;Beginnings · Program initiated · Continuously expanding recycling efforts #12;Paper Recycling · Currently recycling mixed paper Office paper
Meyers, Steven D.
learning environment that inspires innovation, creativity and collaboration and is focused on student System is a highimpact, global research system dedicated to student success. The USF System includes,000 students, the USF System has an annual budget of $1.5 billion and an annual economic impact of $3
$B_s \\to ?^+ ?^-$ and the upward-going muon flux from the WIMP annihilation in the sun or the earth
Seungwon Baek; Yeong Gyun Kim; P. Ko
2005-06-13T23:59:59.000Z
We consider the upward-going muon flux due to the WIMP annihilations in the cores of the sun and the earth, including the upper bound on the branching ratio for $B_s \\to \\mu^+ \\mu^-$ decay. We find that the constraint from $B_s \\to \\mu^+ \\mu^-$ is very strong in most parameter space, and exclude the supergravity parameter space regions where the expected upward-going muon fluxes are within the expected reach of AMANDA II.
The Library is open 24/5 Fall & Spring Summer hours vary -check lib.usf.edu
Meyers, Steven D.
The Library is open 24/5 Fall & Spring Summer hours vary - check lib.usf.edu After midnight, USF ID.lib.usf.edu/guides Teaching a Course? Learn how to integrate the library into Canvas Place items on reserve using PRESTO! Contact the library's Reserve Team at reserves@lib.usf.edu or 813-974-4182 Invite a librarian to join your
Activation of 200 MW refusegenerated CHP upward regulation effect...
CHP plants can be used in the electricity market for upward regulation by bypassing the steam turbine. The technical design for this purpose must ensure that factors such as...
USF HRPP Policy No. 711: Requirements for Human Subjects Research Protection Education
Arslan, Hüseyin
USF HRPP Policy No. 711: Requirements for Human Subjects Research Protection Education Page 1 of 2 Requirements for Human Subjects Research Protection Education HRPP Policy No. 711 Effective Date 04 personnel who engage in human subjects research at the University of South Florida (USF) or research under
USFS Humboldt-Toiyabe National Forest | Open Energy Information
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousPlasmaP a gHigh4-FD-a < RAPIDâ€Ž |SpaceThe GermanUSFS Humboldt-Toiyabe National Forest Jump to: navigation,
Neutrino-induced upward stopping muons in Super-Kamiokande
The Super-Kamiokande Collaboration
1999-12-01T23:59:59.000Z
A total of 137 upward stopping muons of minimum energy 1.6 GeV are observed by Super-Kamiokande during 516 detector live days. The measured muon flux is 0.39+/-0.04(stat.)+/-0.02(syst.)x10^{-13}cm^{-2}s^{-1}sr^{-1} compared to an expected flux of 0.73+/-0.16(theo.)x10^{-13}cm^{-2}s^{-1}sr^{-1}. Using our previously-published measurement of the upward through-going muon flux, we calculate the stopping/through-going flux ratio R}, which has less theoretical uncertainty. The measured value of R=0.22+/-0.02(stat.)+/-0.01(syst.) is significantly smaller than the value 0.37^{+0.05}_{-0.04}(theo.) expected using the best theoretical information (the probability that the measured R is a statistical fluctuation below the expected value is 0.39%). A simultaneous fitting to zenith angle distributions of upward stopping and through-going muons gives a result which is consistent with the hypothesis of neutrino oscillations with the parameters sin^2 2\\theta >0.7 and 1.5x10^{-3} Super-Kamiokande using the contained atmospheric neutrino events.
Arslan, Hüseyin
As Reasonably Achievable (ALARA). USF has set ALARA levels below the annual dose limits set by the State
Freij, N.; Nelson, C. J.; Mumford, S.; Erdélyi, R. [Solar Physics and Space Plasma Research Centre (SP2RC), School of Mathematics and Statistics, The University of Sheffield, Hicks Building, Hounsfield Road, Sheffield S3 7RH (United Kingdom); Scullion, E. M.; Wedemeyer, S., E-mail: n.freij@sheffield.ac.uk [Institute of Theoretical Astrophysics, University of Oslo, Postboks 1029 Blindern, NO-0315 Oslo (Norway)
2014-08-10T23:59:59.000Z
There have been ubiquitous observations of wave-like motions in the solar atmosphere for decades. Recent improvements to space- and ground-based observatories have allowed the focus to shift to smaller magnetic structures on the solar surface. In this paper, high-resolution ground-based data taken using the Swedish 1 m Solar Telescope is combined with co-spatial and co-temporal data from the Atmospheric Imaging Assembly (AIA) on board the Solar Dynamics Observatory (SDO) satellite to analyze running penumbral waves (RPWs). RPWs have always been thought to be radial wave propagation that occurs within sunspots. Recent research has suggested that they are in fact upwardly propagating field-aligned waves (UPWs). Here, RPWs within a solar pore are observed for the first time and are interpreted as UPWs due to the lack of a penumbra that is required to support RPWs. These UPWs are also observed co-spatially and co-temporally within several SDO/AIA elemental lines that sample the transition region and low corona. The observed UPWs are traveling at a horizontal velocity of around 17 ± 0.5 km s{sup –1} and a minimum vertical velocity of 42 ± 21 km s{sup –1}. The estimated energy of the waves is around 150 W m{sup –2}, which is on the lower bound required to heat the quiet-Sun corona. This is a new, yet unconsidered source of wave energy within the solar chromosphere and low corona.
Mark Kubiske (USFS, center) describes gas exchange data to George Hendrey (BNL, left) and
obtained by North Central Station Engineer John Jakel (USFS). The lift will be used for operator needs to accommodate the boom lift for full access around each ring, we moved about 500 trees within 10 feet of each's buffer zone, and (2) it allows access for the boom lift. Thanks to Peterson Tree Service and our grounds
Human Resources Careers@USF Quick Guide Applying for a Job
Meyers, Steven D.
Human Resources Careers@USF Quick Guide Applying for a Job Updated July, 2014 Page. Best viewed in Internet Explorer. Step 1 Find the job you want and log in or register Careers Home displays the latest job postings. Sort the listing by clicking a column header or filter
Meyers, Steven D.
USF College of Pharmacy Technical Standards All candidates must meet the health and technical standards requisite for admission and participation in the educational programs of the College. The Pharm
Wong, Roger Hoi Fung
2010-01-01T23:59:59.000Z
Gene Transcription during Fasting and Feeding/insulin: RoleGene Transcription during Fasting and Feeding/insulin: Roleproteins during the fasting/feeding transition. First, USF
Psychophysiological Reactivity to Self and Model Images in an Upward Social Comparison Manipulation
Tamez, Jeannine
2012-02-14T23:59:59.000Z
The current study examined affective reactivity to oneself in an upward socialcomparison manipulation using autonomic physiological responses. Study I was conducted to select images of thin and average size models used to elicit a social comparison...
Film boiling of saturated liquid flowing upward through a heated tube : high vapor quality range
Laverty, W. F.
1964-01-01T23:59:59.000Z
Film boiling of saturated liquid flowing upward through a uniformly heated tube has been studied for the case in which pure saturated liquid enters the tube and nearly saturated vapor is discharged. Since a previous study ...
Generating upward sweeps in population using the Turchin--Korotayev model
Niemeyer, Richard E
2015-01-01T23:59:59.000Z
The works of [Cha-DunAlvInoNieCarFieLaw,Cha-Dun] describe upward sweeps in populations of city-states and attempt to characterize such phenomenon. The model proposed in both [TurKor,Tur] describes how the population, state resources and internal conflict influence each other over time. We show that one can obtain an upward sweep in the population by altering particular parameters of the system of differential equations constituting the model given in [TurKor,Tur]. Moreover, we show that such a system has a unstable critical point and propose an approach for determining bifurcation points in the parameter space for the model.
: A Global View United States Forest Service (USFS) NRIS-INFORMS-Fire/Fuels Analysis Tool 1 David S. Martinez routines, and rule bases (a knowledge base component) Build and retain project alternatives via Arc Ecologist, Fire & Aviation Management, Southwestern Region, Forest Service, U.S. Department of Agriculture
Search for Dark Matter WIMPs using Upward-Going Muons in
Tokyo, University of
Search for Dark Matter WIMPs using Upward-Going Muons in Super{Kamiokande S. Desai, for the Super{Kamiokande searches for Weakly Interacting Massive Particles (WIMPs) with the Super-Kamiokande detector using neutrino, for the Super{Kamiokande Collaboration the Universe as a cosmological relic from the Big Bang. The most likely
Sources of biogenic methane to form marine gas hydrates: In situ production or upward migration?
Paull, C.K.; Ussler, W. III; Borowski, W.S.
1993-09-01T23:59:59.000Z
Potential sources of biogenic methane in the Carolina Continental Rise -- Blake Ridge sediments have been examined. Two models were used to estimate the potential for biogenic methane production: (1) construction of sedimentary organic carbon budgets, and (2) depth extrapolation of modern microbial production rates. While closed-system estimates predict some gas hydrate formation, it is unlikely that >3% of the sediment volume could be filled by hydrate from methane produced in situ. Formation of greater amounts requires migration of methane from the underlying continental rise sediment prism. Methane may be recycled from below the base of the gas hydrate stability zone by gas hydrate decomposition, upward migration of the methane gas, and recrystallization of gas hydrate within the overlying stability zone. Methane bubbles may also form in the sediment column below the depth of gas hydrate stability because the methane saturation concentration of the pore fluids decreases with increasing depth. Upward migration of methane bubbles from these deeper sediments can add methane to the hydrate stability zone. From these models it appears that recycling and upward migration of methane is essential in forming significant gas hydrate concentrations. In addition, the depth distribution profiles of methane hydrate will differ if the majority of the methane has migrated upward rather than having been produced in situ.
Physical mechanism and numerical simulation of the inception of the lightning upward leader
Li Qingmin [Beijing Key Lab of High Voltage and EMC, School of Electric and Electronic Engineering, North China Electric Power University, Beijing 102206 (China) and State Key Lab of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 102206 (China); Lu Xinchang; Shi Wei; Zhang Li; Zou Liang; Lou Jie [Shandong Provincial Key Lab of UHV Technology and Gas Discharge, School of Electrical Engineering, Shandong University, Jinan 250061 (China)
2012-12-15T23:59:59.000Z
The upward leader is a key physical process of the leader progression model of lightning shielding. The inception mechanism and criterion of the upward leader need further understanding and clarification. Based on leader discharge theory, this paper proposes the critical electric field intensity of the stable upward leader (CEFISUL) and characterizes it by the valve electric field intensity on the conductor surface, E{sub L}, which is the basis of a new inception criterion for the upward leader. Through numerical simulation under various physical conditions, we verified that E{sub L} is mainly related to the conductor radius, and data fitting yields the mathematical expression of E{sub L}. We further establish a computational model for lightning shielding performance of the transmission lines based on the proposed CEFISUL criterion, which reproduces the shielding failure rate of typical UHV transmission lines. The model-based calculation results agree well with the statistical data from on-site operations, which show the effectiveness and validity of the CEFISUL criterion.
UPWARD MOVEMENT OF PLUTONIUM TO SURFACE SEDIMENTS DURING AN 11-YEAR FIELD STUDY
Kaplan, D.; Beals, D.; Cadieux, J.; Halverson, J.
2010-01-25T23:59:59.000Z
An 11-y lysimeter study was established to monitor the movement of Pu through vadose zone sediments. Sediment Pu concentrations as a function of depth indicated that some Pu moved upward from the buried source material. Subsequent numerical modeling suggested that the upward movement was largely the result of invading grasses taking up the Pu and translocating it upward. The objective of this study was to determine if the Pu of surface sediments originated from atmosphere fallout or from the buried lysimeter source material (weapons-grade Pu), providing additional evidence that plants were involved in the upward migration of Pu. The {sup 240}Pu/{sup 239}Pu and {sup 242}Pu/{sup 239}Pu atomic fraction ratios of the lysimeter surface sediments, as determined by Thermal Ionization Mass Spectroscopy (TIMS), were 0.063 and 0.00045, respectively; consistent with the signatures of the weapons-grade Pu. Our numerical simulations indicate that because plants create a large water flux, small concentrations over multiple years may result in a measurable accumulation of Pu on the ground surface. These results may have implications on the conceptual model for calculating risk associated with long-term stewardship and monitored natural attenuation management of Pu contaminated subsurface and surface sediments.
Positive exchange bias and upward magnetic relaxation in a Fe-film/CoO-nanoparticle hybrid system
Krishnan, Kannan M.
Positive exchange bias and upward magnetic relaxation in a Fe-film/CoO- nanoparticle hybrid system exchange bias and upward magnetic relaxation in a Fe-film/CoO-nanoparticle hybrid system Wei Zhang) Heat-induced damping modification in yttrium iron garnet/platinum hetero-structures Appl. Phys. Lett
Eissenberg, David M. (Oak Ridge, TN); Liu, Yin-An (Opelika, AL)
1980-01-01T23:59:59.000Z
This invention relates to an improved device and method for the high gradient magnetic beneficiation of dry pulverized coal, for the purpose of removing sulfur and ash from the coal whereby the product is a dry environmentally acceptable, low-sulfur fuel. The process involves upwardly directed recirculating air fluidization of selectively sized powdered coal in a separator having sections of increasing diameters in the direction of air flow, with magnetic field and flow rates chosen for optimum separations depending upon particulate size.
High energy neutrino astronomy using upward-going muons in Super-Kamiokande-I
The Super-Kamiokande Collaboration; :; K. Abe
2006-07-26T23:59:59.000Z
We present the results from several studies used to search for astrophysical sources of high-energy neutrinos using the Super-Kamiokande-I (April 1996 to July 2001) neutrino-induced upward-going muon data. The data set consists of 2359 events with minimum energy 1.6 GeV, of which 1892 are through-going and 467 stop within the detector. The results of several independent analyses are presented, including searches for point sources using directional and temporal information and a search for signatures of cosmic-ray interactions with the interstellar medium in the upward-going muons. No statistically significant evidence for point sources or any diffuse flux from the plane of the galaxy was found, so specific limits on fluxes from likely point sources are calculated. The 90% C.L. upper limits on upward-going muon flux from astronomical sources which are located in the southern hemisphere and always under the horizon for Super-Kamiokande are 1~4x10^{-15} cm^{-2} s^{-1}.
The Artificial Sky Luminance And The Emission Angles Of The Upward Light Flux
P. Cinzano; F. J. Diaz Castro
1998-11-19T23:59:59.000Z
The direction of the upward light emission has different polluting effects on the sky depending on the distance of the observation site. We studied with detailed models for light pollution propagation the ratio $(b_{H})/(b_{L})$, at given distances from a city, between the artificial sky luminance $b_{H}$ produced by its upward light emission between a given threshold angle $\\theta_{0}$ and the vertical and the artificial sky luminance $b_{L}$ produced by its upward light emission between the horizontal and the threshold angle $\\theta_{0}$. Our results show that as the distance from the city increases the effects of the emission at high angles above the horizontal decrease relative to the effects of emission at lower angles above the horizontal. Outside some kilometers from cities or towns the light emitted between the horizontal and 10\\deg ~is as important as the light emitted at all the other angles in producing the artificial sky luminance. Therefore the protection of a site requires also a careful control of this emission which needs to be reduced to at most 1/10 of the remaining emission. The emission between the horizontal and 10\\deg ~is mostly produced by spill light from luminaires, so fully shielded fixtures (e.g. flat glass luminaires or asymmetric spot-lights installed without any tilt) are needed for this purpose.
Neutrino-induced upward-going muons in Super-Kamiokande
A. Habig; for the Super-Kamiokande Collaboration
1999-05-05T23:59:59.000Z
Upward-going muons observed by the Super-Kamiokande detector are produced by high-energy atmospheric neutrinos which interact in rock around the detector. Those which pass completely through the detector have a mean parent neutrino energy of ~100 GeV, while those which range out inside the detector come from neutrinos of mean energy ~10 GeV. The neutrino baseline varies with the observed muon zenith angle, allowing for an independent test via nu-mu disappearance of the neutrino oscillations observed in the Super-Kamiokande contained events. 614 upward through-going and 137 upward stopping muons were observed over 537 (516) live days, resulting in a flux of Phi_t=1.74\\pm0.07(stat.)\\pm0.02(sys.), Phi_s=0.380\\pm0.038(stat.)^{+0.019}_{-0.016}(sys.) x10^{-13}cm^{-2}s^{-1}sr^{-1}. The observed stopping/through-going ratio R=0.218\\pm0.023(stat.)^{+0.014}_{-0.013}(syst.) is 2.9 sigma lower than the expectation of 0.368^{+0.049}_{-0.044}(theo.). Both the shape of the zenith angle distribution of the observed flux and this low ratio are inconsistent with the null oscillation hypothesis, but are compatible with the previously observed nu-mu nu-tau oscillations. Taken as a whole, the addition of these higher energy nu-mu data to the contained neutrino events provides a better measurement of the oscillation parameters, narrowing the allowed parameter range to sin^22theta >~0.9 and 1.5x10^{-3}eV^2 <~ \\Delta m^2 <~6x10^{-3} at 90% confidence.
The Super-Kamiokande Collaboration; :; M. E. C. Swanson
2007-02-07T23:59:59.000Z
Many astrophysical models predict a diffuse flux of high-energy neutrinos from active galactic nuclei and other extra-galactic sources. At muon energies above 1 TeV, the upward-going muon flux induced by neutrinos from active galactic nuclei is expected to exceed the flux due to atmospheric neutrinos. We have performed a search for this astrophysical neutrino flux by looking for upward-going muons in the highest energy data sample from the Super-Kamiokande detector using 1679.6 live days of data. We found one extremely high energy upward-going muon event, compared with an expected atmospheric neutrino background of 0.46 plus or minus 0.23 events. Using this result, we set an upper limit on the diffuse flux of upward-going muons due to neutrinos from astrophysical sources in the muon energy range 3.16-100 TeV.
Film boiling on the inside of vertical tubes with upward flow of the fluid at low qualities
Dougall, R. S.
1963-01-01T23:59:59.000Z
Flow regimes, local heat transfer coefficients, and temperature distributions along the wall have been studied for film boiling inside a vertical tube with upward flow of a saturated liquid. The area of interest has been ...
Angilella, J R
2010-01-01T23:59:59.000Z
The sedimentation of a heavy Stokes particle in a laminar plane or axisymmetric flow is investigated by means of asymptotic methods. We focus on the occurrence of Stommel's retention zones, and on the splitting of their separatrices. The goal of this paper is to analyze under which conditions these retention zones can form, and under which conditions they can break and induce chaotic particle settling. The terminal velocity of the particle in still fluid is of the order of the typical velocity of the flow, and the particle response time is much smaller than the typical flow time-scale. It is observed that if the flow is steady and has an upward streamline where the vertical velocity has a strict local maximum, then inertialess particle trajectories can take locally the form of elliptic Stommel cells, provided the particle terminal velocity is close enough to the local peak flow velocity. These structures only depend on the local flow topology and do not require the flow to have closed streamlines or stagnatio...
Tokyo, University of
Study of upward-going muons in Super-Kamiokande Choji Saji Doctral Program in Fundamental Science.Miyata. They always encouraged and supported me. I acknowledge Prof. Y.Totsuka, spokesman of the Super-Kamiokande.Matsuno, Dr. A.L.Stachyra and Mr. D.Shantanu. I would like to thank all the Super-Kamiokande collaborators
California at Berkeley, University of
of H is largely conserved. Our article identifies several areas where a dynamic simulation is needed , decidedly the opposite argument used in his abstract fully dynamic simulations are needed for the lowestResponse to ``Comment on `Parallel electric fields in the upward current region of the aurora
Fourth Generation Bound States
Koji Ishiwata; Mark B. Wise
2011-05-25T23:59:59.000Z
We investigate the spectrum and wave functions of {\\bar q}'q' bound states for heavy fourth generation quarks (q') that have a very small mixing with the three observed generations of standard model quarks. Such bound states come with different color, spin and flavor quantum numbers. Since the fourth generation Yukawa coupling, \\lambda_{q'}, is large we include all perturbative corrections to the potential between the heavy quark and antiquark of order \\lambda_{q'}^2N_c/16\\pi^2 where N_c is the number of colors, as well as relativistic corrections suppressed by (v/c)^2. We find that the lightest fourth generation quark masses for which a bound state exists for color octet states. For the the color singlet states, which always have a bound state, we analyze the influence that the Higgs couplings have on the size and binding energy of the bound states.
Bounding the Bogoliubov coefficients
Boonserm, Petarpa
2008-01-01T23:59:59.000Z
While over the last century or more considerable effort has been put into the problem of finding approximate solutions for wave equations in general, and quantum mechanical problems in particular, it appears that as yet relatively little work seems to have been put into the complementary problem of establishing rigourous bounds on the exact solutions. We have in mind either bounds on parametric amplification and the related quantum phenomenon of particle production (as encoded in the Bogoliubov coefficients), or bounds on transmission and reflection coefficients. Modifying and streamlining an approach developed by one of the present authors [Phys. Rev. A 59 (1999) 427-438], we investigate this question by developing a formal but exact solution for the appropriate second-order linear ODE in terms of a time-ordered exponential of 2x2 matrices, then relating the Bogoliubov coefficients to certain invariants of this matrix. By bounding the matrix in an appropriate manner, we can thereby bound the Bogoliubov coeff...
Experimental and theoretical studies of isothermal upward gas-liquid flows in vertical tubes
Fernandes, R.C.
1981-01-01T23:59:59.000Z
In two-phase flow technolgy, two important problems exist which must be solved as a function of the various physical and system parameters associated with the phenomenon, and which stand as prerequisites for proper modelling of two-phase processes: Prediction of the flow pattern under existing operating conditions and prediction of the holdup for each given flow pattern. Modelling studies of steady isothermal upward gas-liquid flows in vertical pipes, at low pressures, were undertaken. Experimental data on liquid holdup over a wide range of flow rates were taken for all observed flow patterns-bubbly, slug, churn, and annular - by means of a specially designed Quick-Closing Valves System. This technique also allowed the detection of a unique phenomenon occurring in the form of fast-flowing slugs of gas-liquid mixture, in both the churn and annular flow patterns, which was called the lump phenomenon. The lump holdup was measured and a qualitative theory regarding the nature, formation and propagation of these structures was proposed. A photographic method was applied to the slug flow pattern in order to determine both the rise velocity and length of Taylor bubbles and liquid slugs characteristic of this flow regime. Assisted by the measured data, flow pattern-based physical models were developed for predicting holdup of bubbly flows and the detailed structure of slug flows. The latter was accomplished by means of a fairly complete analysis which enabled the prediction of several variables of interest such as void fractions, velocities, film thicknesses and the length ratio between Taylor bubbles and liquid slugs. The average holdup for churn flow was predicted by directly applying the slug flow model to that flow pattern. A simplified framework for calculating the holdup in annular flows was also proposed. The comparison between theory and experiment showed that for bubbly, slug and churn flows the predicted results are in good agreement with the data.
Flow pattern and pressure drop of vertical upward gas-liquid flow in sinusoidal wavy channels
Nilpueng, Kitti [Department of Mechanical Engineering, South East Asia University, Bangkok 10160 (Thailand); Wongwises, Somchai [Fluid Mechanics, Thermal Engineering and Multiphase Flow Research Lab (FUTURE), Department of Mechanical Engineering, King Mongkut's University of Technology Thonburi, Bangmod, Bangkok 10140 (Thailand)
2006-06-15T23:59:59.000Z
Flow patterns and pressure drop of upward liquid single-phase flow and air-water two-phase flow in sinusoidal wavy channels are experimentally studied. The test section is formed by a sinusoidal wavy wall of 1.00 m length with a wave length of 67.20mm, an amplitude of 5.76mm. Different phase shifts between the side walls of the wavy channel of 0{sup o}, 90{sup o} and 180{sup o} are investigated. The flow phenomena, which are bubbly flow, slug flow, churn flow, and dispersed bubbly flow are observed and recorded by high-speed camera. When the phase shifts are increased, the onset of the transition from the bubbly flow to the churn flow shifts to a higher value of superficial air velocity, and the regions of the slug flow and the churn flow are smaller. In other words, the regions of the bubbly flow and the dispersed bubbly flow are larger as the phase shift increases. The slug flow pattern is only found in the test sections with phase shifts of 0{sup o} and 90{sup o}. Recirculating gas bubbles are always found in the troughs of the corrugations. The recirculating is higher when the phase shifts are larger. The relationship between the two-phase multipliers calculated from the measured pressure drops, and the Martinelli parameter is compared with the Lockhart-Martinelli correlation. The correlation in the case of turbulent-turbulent condition is shown to fit the data very well for the phase shift of 0{sup o} but shows greater deviation when the phase shifts are higher. (author)
The Super-Kamiokande Collaboration
1999-03-18T23:59:59.000Z
A total of 614 upward through-going muons of minimum energy 1.6 GeV are observed by Super-Kamiokande during 537 detector live days. The measured muon flux is 1.74+/-0.07(stat.)+/-0.02(sys.)x10^{-13}cm^{-2}s^{-1}sr^{-1} compared to an expected flux of 1.97+/-0.44(theo.)x10^{-13}cm^{-2}s^{-1}sr^{-1}. The absolute measured flux is in agreement with the prediction within the errors. However, the zenith angle dependence of the observed upward through-going muon flux does not agree with no-oscillation predictions. The observed distortion in shape is consistent with the \
Fourth generation bound states
Ishiwata, Koji; Wise, Mark B. [California Institute of Technology, Pasadena, California, 91125 (United States)
2011-04-01T23:59:59.000Z
We investigate the spectrum and wave functions of q{sup '}q{sup '} bound states for heavy fourth generation quarks (q{sup '}) that have a very small mixing with the three observed generations of standard model quarks. Such bound states come with different color, spin and flavor quantum numbers. Since the fourth generation Yukawa coupling, {lambda}{sub q}{sup '}, is large we include all perturbative corrections to the potential between the heavy quark and antiquark of order {lambda}{sub q}{sup '2}N{sub c}/16{pi}{sup 2} where N{sub c} is the number of colors, as well as relativistic corrections suppressed by (v/c){sup 2}. We find that the lightest fourth generation quark masses for which a bound state exists for color octet states. For the color singlet states, which always have a bound state, we analyze the influence that the Higgs couplings have on the size and binding energy of the bound states.
Earth's extensive entropy bound
A. M. Lisewski
2012-12-20T23:59:59.000Z
The possibility of planetary mass black hole production by crossing entropy limits is addressed. Such a possibility is given by pointing out that two geophysical quantities have comparable values: first, Earth's total negative entropy flux integrated over geological time and, second, its extensive entropy bound, which follows as a tighter bound to the Bekenstein limit when entropy is an extensive function. The similarity between both numbers suggests that the formation of black holes from planets may be possible through a strong fluctuation toward thermodynamic equilibrium which results in gravothermal instability and final collapse. Briefly discussed are implications for the astronomical observation of low mass black holes and for Fermi's paradox.
J. Haidenbauer; Ulf-G. Meißner; S. Petschauer
2014-12-09T23:59:59.000Z
The existence of baryon-baryon bound states in the strangeness sector is examined in the framework of SU(3) chiral effective field theory. Specifically, the role of SU(3) symmetry breaking contact terms that arise at next-to-leading order in the employed Weinberg power counting scheme is explored. We focus on the 1S0 partial wave and on baryon-baryon channels with maximal isospin since in this case there are only two independent SU(3) symmetry breaking contact terms. At the same time, those are the channels where most of the bound states have been predicted in the past. Utilizing $pp$ phase shifts and $\\Sigma^+ p$ cross section data allows us to pin down one of the SU(3) symmetry breaking contact terms and a clear indication for the decrease of attraction when going from the NN system to strangeness S=-2 is found, which rules out a bound state for $\\Sigma\\Sigma$ with isospin I=2. Assuming that the trend observed for S=0 to S=-2 is not reversed when going to $\\Xi\\Sigma$ and $\\Xi\\Xi$ makes also bound states in those systems rather unlikely.
Raja, Anita
Query Input l Word processing package for aMac. l $200 price limit. l Search process should take 10 min Features l Active search and discovery. l Resource Bounded Reasoning. l Goaldriven and) C (75% 6) (25% 4) enables Subtask Relation Enables NLE Q = Quality D = Duration C = Cost Task
Kumar S. Gupta; Siddhartha Sen
2008-06-03T23:59:59.000Z
We present a quantum analysis of the massless excitations in graphene with a charge impurity. When the effective charge exceeds a certain critical value, the spectrum is quantized and is unbounded from below. The corresponding eigenstates are square-integrable at infinity and have a rapidly oscillatory behaviour in the short distance, which can be interpreted as a fall to the centre. Using a cutoff regularization, we show that the effective Coulomb interaction strength is driven to its critical value under the renormalization group flow. In the subcritical region, we find bound states with imaginary values of the energy for certain range of the system parameters. The physical significance of these bound states with imaginary eigenvalues is discussed.
USF System USF USFSP USFSM Number: USF4.0102
Meyers, Steven D.
Student Green Energy 1.00 1.00 0 Block Fee per Term Activity and Service 7.00 0 0 Athletic 10.00 5.00 5.00 Marshall Center Use 88.00 Student Green Energy 32.00 (2) Each student enrolled in the same undergraduate
USF System USF USFSP USFSM Number: USF11.002
Meyers, Steven D.
challenge grants; and other functions and responsibilities of the Foundation under Florida law and pertinent. (4) Trust Fund Challenge Grants established for the endowment of scholarships, library resources resulted in publication or presentation of speeches or papers, (b) Teaching excellence, (c) Ability
USF System USF USFSP USFSM Number: USF12.003
Meyers, Steven D.
this regulation: (a) A "work" includes any copyrightable material such as printed material, computer software, computer programs, computer assisted instructional coursework, programmed instructional materials, three is the property of the employee, who has the right to determine the disposition of such work and the revenue
USF System USF USFSP USFSM Number: USF4.0108
Meyers, Steven D.
may be granted a waiver of the out-of-state fee. The credit hours generated must be non-state fundable
A study on the characteristics of upward air-water two-phase flow in a large diameter pipe
Shen, Xiuzhong; Saito, Yasushi; Mishima, Kaichiro [Research Reactor Institute, Kyoto University, Kumatori-cho, Sennan-gun, Osaka 590-0494 (Japan); Nakamura, Hideo [Nuclear Safety Research Center, Japan Atomic Energy Agency, Tokai-mura, Ibaraki 319-1195 (Japan)
2006-10-15T23:59:59.000Z
An adiabatic upward co-current air-water two-phase flow in a vertical large diameter pipe (inner diameter, D: 0.2m, ratio of pipe length to diameter, L/D: 60.5) was experimentally investigated under various inlet conditions. Flow regimes were visually observed, carefully analyzed and classified into five, i.e. undisturbed bubbly, agitated bubbly, churn bubbly, churn slug and churn froth. Void fraction, bubble frequency, Sauter mean diameter, interfacial area concentration (IAC) and interfacial direction were measured with four-sensor optical probes. Both the measured void fraction and the measured IAC demonstrated radial core-peak distributions in most of the flow regimes and radial wall peak in the undisturbed bubbly flow only. The bubble frequency also showed a wall-peak radial distribution only when the bubbles were small in diameter and the flow was in the undisturbed bubbly flow. The Sauter mean diameter of bubbles did not change much in the radial direction in undisturbed bubbly, agitated bubbly and churn bubbly flows and showed a core-peak radial distribution in the churn slug flow due to the existence of certain amount of large and deformed bubbles in this flow regime. The measurements of interfacial direction showed that the main and the secondary bubbly flow could be displayed by the main flow peak and the secondary flow peak, respectively, in the probability density function (PDF) of the interfacial directional angle between the interfacial direction and the z-axis, {eta}{sub zi}. The local average {eta}{sub zi }at the bubble front or rear hemisphere ({eta}{sub zi}{sup F} and {eta}{sub zi}{sup R}) reflected the local bubble movement and was in direct connection with the flow regimes. Based on the analysis, the authors classified the flow regimes in the vertical large diameter pipe quantitatively by the cross-sectional area-averaged {eta}{sub zi }at bubbly front hemisphere ({eta}{sub zi}{sup F}-bar). Bubbles in the undisturbed bubbly flow moved in a vertical way with some swerving motions and those in other flow regimes moved along the lateral secondary flow with an averaging net upward velocity. (author)
Casas, J.C.; Corradini, M.L. (Univ. of Wisconsin-Madison, Nuclear Engineering and Engineering Physics Dept., Madison, WI (US))
1992-07-01T23:59:59.000Z
In this paper, investigations are performed to study the mixing between immiscible liquids in a pool configuration due to an upward gas flow. A water-R113 system is sued in the bubbly/churn-turbulent regimes to determine the effects of the unagitated pool depth on layer mixing. The superficial gas velocity at which full mixing is attained is observed to increase with the pool depth, although it is concluded that this is a weak dependency. Mixing in the churn-turbulent regime is studied with Wood's metal-water and Wood's metal-silicone fluid (100 cS) as pairs of fluids. Additional past mixing data from six other fluids are also included in the data base. A criterion is proposed to determine if two liquids will entrain in bubbly or churn-turbulent flow. Correlations are derived that, for a set of given conditions, allow prediction of the mixing state (mixed or segregated) of a system. Because of the indirect method of measuring the mixed layer thickness, pool void fraction experiments are also performed. For the case of water and R113, the effect of unagitated pool depth on the void fraction is studied.
Yang, Dong; Pan, Jie; Zhu, Xiaojing; Bi, Qincheng; Chen, Tingkuan [State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an 710049 (China); Zhou, Chenn Q. [Department of Mechanical Engineering, Purdue University Calumet, Hammond, IN 46323 (United States)
2011-02-15T23:59:59.000Z
Water wall design is a key issue for supercritical Circulating Fluidized Bed (CFB) boiler. On account of the good heat transfer performance, rifled tube is applied in the water wall design of a 600 MW supercritical CFB boiler in China. In order to investigate the heat transfer and frictional characteristics of the rifled tube with vertical upward flow, an in-depth experiment was conducted in the range of pressure from 12 to 30 MPa, mass flux from 230 to 1200 kg/(m{sup 2} s), and inner wall heat flux from 130 to 720 kW/m{sup 2}. The wall temperature distribution and pressure drop in the rifled tube were obtained in the experiment. The normal, enhanced and deteriorated heat transfer characteristics were also captured. In this paper, the effects of pressure, inner wall heat flux and mass flux on heat transfer characteristics are analyzed, the heat transfer mechanism and the frictional resistance performance are discussed, and the corresponding empirical correlations are presented. The experimental results show that the rifled tube can effectively prevent the occurrence of departure from nucleate boiling (DNB) and keep the tube wall temperature in a permissible range under the operating condition of supercritical CFB boiler. (author)
discussed how an upward-pointing radar can utilize the Doppler effect to determine the downdraft (or updraft the Doppler signal from a vertically pointing radar can be used to determine sizes and numbers of raindrops, the frequency shifts in the Doppler signal corresponds directly to speeds of the drops relative to the ground
Numerical semigroups Easy bounds on ng
Elizalde, Sergi
Numerical semigroups Easy bounds on ng Improved bounds on ng The number of numerical semigroups #12;Numerical semigroups Easy bounds on ng Improved bounds on ng Motivation Definitions The tree on ng Improved bounds on ng Motivation Definitions The tree T of numerical semigroups Succession rules
Laoulache, R.N.; Maeder, P.F.; DiPippo, R.
1987-05-01T23:59:59.000Z
A Scheme is developed to describe the upward flow of a two-phase mixture of a single substance in a vertical adiabatic constant area pipe. The scheme is based on dividing the mixture into a homogeneous core surrounded by a liquid film. This core may be a mixture of bubbles in a contiguous liquid phase, or a mixture of droplets in a contiguous vapor phase. Emphasis is placed upon the latter case since the range of experimental measurements of pressure, temperature, and void fraction collected in this study fall in the slug-churn''- annular'' flow regimes. The core is turbulent, whereas the liquid film may be laminar or turbulent. Turbulent stresses are modeled by using Prandtl's mixing-length theory. The working fluid is Dichlorotetrafluoroethane CCIF{sub 2}-CCIF{sub 2} known as refrigerant 114 (R-114); the two-phase mixture is generated from the single phase substance by the process of flashing. In this study, the effect of the Froude and Reynolds numbers on the liquid film characteristics is examined. The compressibility is accounted for through the acceleration pressure gradient of the core and not directly through the Mach number. An expression for an interfacial friction coefficient between the turbulent core and the liquid film is developed; it is similar to Darcy's friction coefficient for a single phase flow in a rough pipe. Finally, an actual steam-water geothermal well is simulated; it is based on actual field data from New Zealand. A similarity theory is used to predict the steam-water mixture pressure and temperature starting with laboratory measurements on the flow of R-114.
Entropy bounds for uncollapsed matter
Abreu, Gabriel
2010-01-01T23:59:59.000Z
In any static spacetime the quasilocal Tolman mass contained within a volume can be reduced to a Gauss-like surface integral involving the flux of a suitably defined generalized surface gravity. By introducing some basic thermodynamics, and invoking the Unruh effect, one can then develop elementary bounds on the quasilocal entropy that are very similar in spirit to the holographic bound, and closely related to entanglement entropy.
Entropy bounds for uncollapsed matter
Gabriel Abreu; Matt Visser
2010-11-19T23:59:59.000Z
In any static spacetime the quasilocal Tolman mass contained within a volume can be reduced to a Gauss-like surface integral involving the flux of a suitably defined generalized surface gravity. By introducing some basic thermodynamics, and invoking the Unruh effect, one can then develop elementary bounds on the quasilocal entropy that are very similar in spirit to the holographic bound, and closely related to entanglement entropy.
Cosmodynamics: Energy conditions, Hubble bounds, density bounds, time and distance bounds
Cattoen, Celine
2007-01-01T23:59:59.000Z
We refine and extend a programme initiated by one of the current authors [Science 276 (1997) 88; Phys. Rev. D56 (1997) 7578] advocating the use of the classical energy conditions of general relativity in a cosmological setting to place very general bounds on various cosmological parameters. We show how the energy conditions can be used to bound the Hubble parameter H(z), Omega parameter Omega(z), density rho(z), distance d(z), and lookback time T(z) as (relatively) simple functions of the redshift z, present-epoch Hubble parameter H_0, and present-epoch Omega parameter Omega_0. We compare these results with related observations in the literature, and confront the bounds with the recent supernova data.
USFS | Open Energy Information
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onsource History View NewUS National Fuel Cell Research Center NFCRC Jump to: navigation, search Name:USAIDUSDOIDecision
Free bound and bound bound profiles in excitation spectra of the B3 1 X1 0+ transition in CdNg (Ng, the characterization was improved. Morse functions for CdNg (Ng = noble gas) (also Lennard-Jones (12-6) for Cd groups to investigate CdNg (Ng = noble gas) complexes [1,2], and to spectroscopically characterize both
Semiclassical bounds in magnetic bottles
Diana Barseghyan; Pavel Exner; Hynek Kovarik; Timo Weidl
2015-01-13T23:59:59.000Z
The aim of the paper is to derive spectral estimates into several classes of magnetic systems. They include three-dimensional regions with Dirichlet boundary as well as a particle in $\\mathbb{R}^3$ confined by a local change of the magnetic field. We establish two-dimensional Berezin-Li-Yau and Lieb-Thirring-type bounds in the presence of magnetic fields and, using them, get three-dimensional estimates for the eigenvalue moments of the corresponding magnetic Laplacians.
Analytic bounds on transmission probabilities
Boonserm, Petarpa
2009-01-01T23:59:59.000Z
We develop some new analytic bounds on transmission probabilities (and the related reflection probabilities and Bogoliubov coefficients) for generic one-dimensional scattering problems. To do so we rewrite the Schrodinger equation for some complicated potential whose properties we are trying to investigate in terms of some simpler potential whose properties are assumed known, plus a (possibly large) "shift" in the potential. Doing so permits us to extract considerable useful information without having to exactly solve the full scattering problem.
Optimization Online - Improved semidefinite programming bounds ...
Etienne de Klerk
2009-09-17T23:59:59.000Z
Sep 17, 2009 ... ... programming bounds for quadratic assignment problems with suitable symmetry ... Category 1: Linear, Cone and Semidefinite Programming.
Time-Bounded Verification Joel Ouaknine1
Worrell, James
Time-Bounded Verification JoÂ¨el Ouaknine1 , Alexander Rabinovich2 , and James Worrell1 1 Oxford prob- lems for timed automata over time intervals of fixed, bounded length. One of our main results is that time-bounded language inclusion for timed automata is 2EXPSPACE-complete. We also investigate the satis
An Indirect Search for WIMPs in the Sun using 3109.6 days of upward-going muons in Super-Kamiokande
Tanaka, T; Hayato, Y; Iida, T; Kameda, J; Koshio, Y; Kouzuma, Y; Miura, M; Moriyama, S; Nakahata, M; Nakayama, S; Obayashi, Y; Sekiya, H; Shiozawa, M; Suzuki, Y; Takeda, A; Takenaga, Y; Ueno, K; Ueshima, K; Yamada, S; Yokozawa, T; Ishihara, C; Hazama, S; Kaji, H; Kajita, T; Kaneyuki, K; McLachlan, T; Okumura, K; Shimizu, Y; Tanimoto, N; Dufour, F; Kearns, E; Litos3, M; Raaf, J L; Stone, J L; Sulak, L R; Cravens, J P; Bays, K; Kropp, W R; Mine, S; Regis, C; Smy, M B; Sobel, H W; Ganezer, K S; Hill, J; Keig, W E; Jang, J S; Kim, J Y; Lim, I T; Albert, J B; Scholberg, K; Walter, C W; Wendell, R; Wongjirad, T; Ishizuka, T; Tasaka, S; Learned, J G; Matsuno, S; Smith, S; Martens, K; Vagins, M; Watanabe, Y; Hasegawa, T; Ishida, T; Ishii, T; Kobayashi, T; Nakadaira, T; Nakamura, K; Nishikawa, K; Nishino, H; Oyama, Y; Sakashita, K; Sekiguchi, T; Tsukamoto, T; Suzuki, A T; Takeuchi, Y; Ikeda, M; Minamino, A; Nakaya, T; Labarga, L; Fukuda, Y; Itow, Y; Mitsuka, G; Jung, C K; McGrew, C; Lopez, G; Yanagisawa, C; Tamura, N; Ishino, H; Kibayashi, A; Sakuda, M; Kuno, Y; Yoshida, M; Kim, S B; Yang, B S; Okazawa, H; Choi, Y; Nishijima, K; Yokosawa, Y; Koshiba, M; Totsuka, Y; Yokoyama, M; Chen, S; Heng, Y; Yang, Z; Zhang, H; Kielczewska, D; Mijakowski, P; Connolly, K; Dziomba, M; Thrane, E
2011-01-01T23:59:59.000Z
We present the result of an indirect search for high energy neutrinos from WIMP annihilation in the Sun using upward-going muon (upmu) events at Super-Kamiokande. Datasets from SKI-SKIII (3109.6 days) were used for the analysis. We looked for an excess of neutrino signal from the Sun as compared with the expected atmospheric neutrino background in three upmu categories: stopping, non-showering, and showering. No significant excess was observed. The 90% C.L. upper limits of upward-going muon flux induced by WIMPs of 100 GeV/c$^2$ were 6.4$\\times10^{-15}$ cm$^{-2}$ sec$^{-1}$ and 4.0$\\times10^{-15}$ cm$^{-2}$ sec$^{-1}$ for the soft and hard annihilation channels, respectively. These limits correspond to upper limits of 4.5$\\times10^{-39}$ cm$^{-2}$ and 2.7$\\times10^{-40}$ cm$^{-2}$ for spin-dependent WIMP-nucleon scattering cross sections in the soft and hard annihilation channels, respectively.
Habibi, M., E-mail: habibi.physics@gmail.com [Young Researchers and Elite Club, Shirvan Branch, Islamic Azad University, Shirvan (Iran, Islamic Republic of); Ghamari, F. [Young Researchers and Elite Club, Khorramabad Branch, Islamic Azad University, Khorramabad (Iran, Islamic Republic of)
2014-05-15T23:59:59.000Z
The results of a numerical study of high-intensity X-ray laser beam interaction with warm quantum plasma (WQP) are presented. By means of an upward ramp density profile combined with quantum factors specially the Fermi velocity, we have demonstrated significant relativistic self-focusing (RSF) of a Gaussian electromagnetic beam in the WQP where the Fermi temperature term in the dielectric function is important. For this purpose, we have considered the quantum hydrodynamics model that modifies refractive index of inhomogeneous WQPs with the inclusion of quantum correction through the quantum statistical and diffraction effects in the relativistic regime. Also, to better illustration of the physical difference between warm and cold quantum plasmas and their effect on the RSF, we have derived the envelope equation governing the spot size of X-ray laser beam in Q-plasmas. In addition to the upward ramp density profile, we have found that the quantum effects would be caused much higher oscillation and better focusing of X-ray laser beam in the WQP compared to that of cold quantum case. Our computational results reveal the importance of the use of electrons density profile and Fermi speed in enhancing self-focusing of laser beam.
Lower Bounds for Bounded Depth Frege Proofs via Pudlak-Buss Games
Harsha, Prahladh
19 Lower Bounds for Bounded Depth Frege Proofs via Pudl´ak-Buss Games ELI BEN-SASSON Technion. Our method uses the interpretation of proofs as two player games given by Pudl´ak and Buss. Our lower. 2010. Lower bounds for bounded depth Frege proofs via Pudl´ak- Buss games. ACM Trans. Comput. Logic, 11
Decoherence in time evolution of bound entanglement
Zhe Sun; Xiaoguang Wang; Y. B. Gao; C. P. Sun
2007-01-15T23:59:59.000Z
We study a dynamic process of disentanglement by considering the time evolution of bound entanglement for a quantum open system, two qutrits coupling to a common environment. Here, the initial quantum correlations of the two qutrits are characterized by the bound entanglement. In order to show the universality of the role of environment on bound entanglement, both bosonic and spin environments are considered. We found that the bound entanglement displays collapses and revivals, and it can be stable against small temperature and time change. The thermal fluctuation effects on bound entanglement are also considered.
Taitel, Y. (Tel-Aviv Univ., Israel); Bornea, D.; Dukler, A.E.
1980-05-01T23:59:59.000Z
Models for predicting flow patterns in steady upward gas-liquid flow in vertical tubes (such as production-well tubing) delineate the transition boundaries between each of the four basic flow patterns for gas-liquid flow in vertical tubes: bubble, slug, churn, and dispersed-annular. Model results suggest that churn flow is the development region for the slug pattern and that bubble flow can exist in small pipes only at high liquid rates, where turbulent dispersion forces are high. Each transition depends on the flow-rate pair, fluid properties, and pipe size, but the nature of the dependence is different for each transition because of differing control mechanisms. The theoretical predictions are in reasonably good agreement with a variety of published flow maps based on experimental data.
On Page's examples challenging the entropy bound
Jacob D. Bekenstein
2000-09-21T23:59:59.000Z
According to the entropy bound, the entropy of a complete physical system can be universally bounded in terms of its circumscribing radius and total gravitating energy. Page's three recent candidates for counterexamples to the bound are here clarified and refuted by stressing that the energies of all essential parts of the system must be included in the energy the bound speaks about. Additionally, in response to an oft heard claim revived by Page, I give a short argument showing why the entropy bound is obeyed at low temperatures by a complete system. Finally, I remark that Page's renewed appeal to the venerable ``many species'' argument against the entropy bound seems to be inconsistent with quantum field theory.
Dynamical Bounds for Sturmian Schrödinger Operators
L. Marin
2009-06-10T23:59:59.000Z
The Fibonacci Hamiltonian, that is a Schr\\"{o}dinger operator associated to a quasiperiodical sturmian potential with respect to the golden mean has been investigated intensively in recent years. Damanik and Tcheremchantsev developed a method and find a non trivial dynamical upper bound for this model. In this paper, we use this method to generalize to a large family of Sturmian operators dynamical upper bounds and show at sufficently large coupling anomalous transport for operators associated to irrational number with a generic diophantine condition. As a counter example, we exhibit a pathological irrational number which do not verify this condition and show its associated dynamic exponent only has ballistic bound. Moreover, we establish a global lower bound for the lower box counting dimension of the spectrum that is used to obtain a dynamical lower bound for bounded density irrational numbers.
The viscosity bound in string theory
Aninda Sinha; Robert C. Myers
2009-09-11T23:59:59.000Z
The ratio of shear viscosity to entropy density $\\eta/s$ of any material in nature has been conjectured to have a lower bound of $1/4\\pi$, the famous KSS bound. We examine string theory models for evidence in favour of and against this conjecture. We show that in a broad class of models quantum corrections yield values of $\\eta/s$ just above the KSS bound. However, incorporating matter fields in the fundamental representation typically leads to violations of this bound. We also outline a program to extend AdS/CFT methods to RHIC phenomenology.
Improved semidefinite programming bounds for quadratic ...
2009-09-15T23:59:59.000Z
Sep 15, 2009 ... nite programming relaxations of the quadratic assignment problem, Math- ematical ... linear term since it arises when doing branch and bound.
Original Article Error Bounds and Metric Subregularity
2014-06-18T23:59:59.000Z
theory of error bounds of extended real-valued functions. Another objective is to ... Another observation is that neighbourhood V in the original definition of metric.
BOUNDS ON EIGENVALUES OF MATRICES ARISING FROM ...
2012-11-17T23:59:59.000Z
energy estimates to obtain bounds on the eigenvalues of the matrices, and ... Our primary goal is to provide a theoretical foundation to the study of spectral.
Hybrid LP/SDP Bounding Procedure
2012-10-24T23:59:59.000Z
on sophisticated Branch and Cut (BC) algorithms based on a smart implicit enumeration of the branching tree. The bounding procedure typically makes use.
REFINED BOUNDS ON THE NUMBER OF CONNECTED ...
2011-04-06T23:59:59.000Z
Apr 6, 2011 ... Smith inequality (see Theorem 2.5) a bound on the number of semi- ... then using Smith inequality, have been used before in several different ...
Optimization Online - Information Relaxation Bounds for Infinite ...
David Brown
2014-09-06T23:59:59.000Z
Sep 6, 2014 ... ... Relaxation Bounds for Infinite Horizon Markov Decision Processes ... penalties for information in a direct way via control variate terms.
Holographic entropy bounds in the inflationary universe
Y. S. Myung
2003-01-13T23:59:59.000Z
We introduce the relation between the holographic entropy bounds and the inflationary universe. First the holographic entropy bounds for radiation-dominated universe, radiation-dominated universe with a positive cosmological constant are introduced. For an exact de Sitter phase, we use the maximal entropy bound. We classify the inflation based on the quasi-de Sitter spacetime into three steps: slow-roll period of inflation, epoch of reheating, and radiation-dominated era. Then we study how to apply three entropy bounds to the three steps of the inflation. Finally we discuss our results.
Fluctuation bounds on charge and heat diffusion
Pavel Kovtun
2014-07-02T23:59:59.000Z
We study thermal fluctuation corrections to charge and heat conductivity in systems with locally conserved energy and charge, but without locally conserved momentum. Thermal fluctuations may naturally lead to a lower bound on diffusion constants for thermoelectric transport, and need to be taken into account when discussing potential bounds on transport coefficients.
Notes on polynomially bounded arithmetic Domenico Zambella
Amsterdam, University of
the collapse of Buss' bounded arithmetic in terms of the provable collapse of the polynomial time hierarchy. We with Buss' bounded arithmetic. : : : : : : : : : : : : : : : : : : : : : : : 11 2 Witnessing theorems : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 12 2.2 A modeltheoretical version of Buss' witnessing theorem. : : : : : : : : : : : : : : : 14 2
BOUND SYSTEMS 4.A Binding Energy
Boal, David
CHAPTER 4 BOUND SYSTEMS 4.A Binding Energy The mass-energy equation (3.2) is valid for a single linear momentum and its energy. While we introduced the equation in order to describe the energy is measurable. The implication of (4.1) taken with (3.2) is that the mass energy of a bound state is less than
TIGHT BOUNDS ON EXPECTED ORDER STATISTICS
Bertsimas, Dimitris
TIGHT BOUNDS ON EXPECTED ORDER STATISTICS DIIIMMMIIITTTRRRIIISSS BEEERRRTTTSSSIIIMMMAAASSS Sloan@nus.edu.sg In this article, we study the problem of finding tight bounds on the expected value of the kth-order statistic E of the highest-order statistic E @Xn:n# can be computed with a bisection search algo- rithm+ An extremal discrete
Resetting Bounding Nodes in Acquiring Spanish
Cebreiros, Ramiro
1996-01-01T23:59:59.000Z
This paper addresses the issue of whether L2 learners can reset parameters, by testing English speakers learning Spanish on their ability to reset the bounding node parameter. The bounding nodes are : IP and NP in English, CP and NP in Spanish...
New bounds on isotropic Lorentz violation
Chris Carone; Marc Sher; Marc Vanderhaeghen
2006-09-19T23:59:59.000Z
Violations of Lorentz invariance that appear via operators of dimension four or less are completely parameterized in the Standard Model Extension (SME). In the pure photonic sector of the SME, there are nineteen dimensionless, Lorentz-violating parameters. Eighteen of these have experimental upper bounds ranging between 10{sup -11} and 10{sup -32}; the remaining parameter, ktr, is isotropic and has a much weaker bound of order 10{sup -4}. In this Brief Report, we point out that ktr gives a significant contribution to the anomalous magnetic moment of the electron and find a new upper bound of order 10{sup -8}. With reasonable assumptions, we further show that this bound may be improved to 10{sup -14} by considering the renormalization of other Lorentz-violating parameters that are more tightly constrained. Using similar renormalization arguments, we also estimate bounds on Lorentz violating parameters in the pure gluonic sector of QCD.
From Thermodynamics to the Bound on Viscosity
Shahar Hod
2009-07-07T23:59:59.000Z
We show that the generalized second law of thermodynamics may shed much light on the mysterious Kovtun-Son-Starinets (KSS) bound on the ratio of viscosity to entropy density. In particular, we obtain the lower bound $\\eta/s +O(\\eta^3/s^3)\\geq 1/4\\pi$. Furthermore, for conformal field theories we obtain a new fundamental bound on the value of the relaxation coefficient $\\tau_{\\pi}$ of causal hydrodynamics, which has been the focus of much recent attention: $(\\tau_{\\pi}T)^2\\geq {{(\\sqrt{3}-1)}/{2\\pi^2}}$.
Laboratory Bounds on Electron Lorentz Violation
Brett Altschul
2010-05-17T23:59:59.000Z
Violations of Lorentz boost symmetry in the electron and photon sectors can be constrained by studying several different high-energy phenomenon. Although they may not lead to the strongest bounds numerically, measurements made in terrestrial laboratories produce the most reliable results. Laboratory bounds can be based on observations of synchrotron radiation, as well as the observed absences of vacuum Cerenkov radiation. Using measurements of synchrotron energy losses at LEP and the survival of TeV photons, we place new bounds on the three electron Lorentz violation coefficients c_(TJ), at the 3 x 10^(-13) to 6 x 10^(-15) levels.
Unlocking the Mysteries of the Bounding Box
Caldwell, Douglas R.
2005-08-29T23:59:59.000Z
,50). This bounding box has a width of 360 degrees, rather than 20 degrees, exaggerating by eighteen times the width of the Boxtopia. The Global Gotchas can be clearly seen in Figure 3, where Russia, the United States, Kiribati, Fiji, New Zealand... Bounding Rectangle," MiMi.hu, http://en.mimi.hu/gis/ Page 18 minimum_bounding_rectangle.html 2. Open GIS Consortium, Inc., OpenGIS? Geography Markup Language (GML) Implementation Specification, OGC 02-023r4, Version 3.0, January 29, 2003. https://portal...
Decays of Fourth Generation Bound States
V. F. Dmitriev; V. V. Flambaum
2012-08-28T23:59:59.000Z
We consider the decay modes of the heavy $q^\\prime\\bar{q^\\prime}$ bound states originating from Higgs boson exchange between quark -- anti-quark pair. In case of a small coupling between the fourth and lower generation the main decay mode is $q^\\prime\\bar{q^\\prime}$ annihilation. We show that for a vector state the dominant decay modes are Higgs-gamma and Higgs-Z decays, while for a pseudoscalar state the strong two-gluon decay mode dominates. The bound states are very narrow. The ratio of the total width to the binding energy is less than 1% if we are not extremely close to the critical quark mass where the binding energy is very small. The discussed decay modes exist for any fermion-antifermion bound states including heavy leptons and heavy neutrinos if their masses are high enough to form a bound state due to attractive Higgs boson exchange potential.
Entropy bounds for uncollapsed rotating bodies
Abreu, Gabriel
2010-01-01T23:59:59.000Z
Entropy bounds in black hole physics, based on a wide variety of different approaches, have had a long and distinguished history. Recently the current authors have turned attention to uncollapsed systems and obtained a robust entropy bound for uncollapsed static spherically symmetric configurations. In the current article we extend this bound to rotating systems. This extension is less simple than one might at first suppose. Purely classically, (using only classical general relativity and basic thermodynamics), it is possible to show that the entropy of uncollapsed matter inside a region enclosed by a surface of area A is bounded from above by S = max kappa(FIDOs) / (2 pi). Thus, using only classical general relativity, basic thermodynamics, and the Unruh effect, we are able to argue that for uncollapsed matter S <= {1/2} A.
Tree Elaboration Strategies Branch and Bound Algorithms
, Elon College Terri Anne Johnson, Elon College Monique Guignard-Spielberg, The University of a sharp lower bound technique in these algorithms is one of the major difficulties. Recently, Hahn
Cellulose-Bound Magnesium Diboride Superconductivity
Ryan, Dominic
Cellulose-Bound Magnesium Diboride Superconductivity Y.L. Lin and M.O. Pekguleryuz Department a cellulose based polymer. Cellulose tends to react only very weekly and is very robust, hence constitutes
Theory and Modeling of Weakly Bound/Physisorbed Materials for...
Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site
Theory and Modeling of Weakly BoundPhysisorbed Materials for Hydrogen Storage Theory and Modeling of Weakly BoundPhysisorbed Materials for Hydrogen Storage Presentation on the...
Bae, Yoon-Yeong; Kim, Hwan-Yeol [Korea Atomic Energy Research Institute, 1045 Daedeokdaero, Yuseong, Daejeon 305-353 (Korea)
2009-01-15T23:59:59.000Z
The Super-Critical Water-Cooled Reactor (SCWR) has been chosen by the Generation IV International Forum as one of the candidates for the next generation nuclear reactors. Heat transfer to water from a fuel assembly may deteriorate at certain supercritical pressure flow conditions and its estimation at degraded conditions as well as in normal conditions is very important to the design of a safe and reliable reactor core. Extensive experiments on a heat transfer to a vertically upward flowing CO{sub 2} at a supercritical pressure in tubes and an annular channel have been performed. The geometries of the test sections include tubes of an internal diameter (ID) of 4.4 and 9.0 mm and an annular channel (8 x 10 mm). The heat transfer coefficient (HTC) and Nusselt numbers were derived from the inner wall temperature converted by using the outer wall temperature measured by adhesive K-type thermocouples and a direct (tube) or indirect (annular channel) electric heating power. From the test results, a correlation, which covers both a deteriorated and a normal heat transfer regime, was developed. The developed correlation takes different forms in each interval divided by the value of parameter Bu. The parameter Bu (referred to as Bu hereafter), a function of the Grashof number, the Reynolds number and the Prandtl number, was introduced since it is known to be a controlling factor for the occurrence of a heat transfer deterioration due to a buoyancy effect. The developed correlation predicted the HTCs for water and HCFC-22 fairly well. (author)
Elekes, Z.; Dombradi, Zs.; Fueloep, Zs. [Institute of Nuclear Research of the Hungarian Academy of Sciences, P.O. Box 51, Debrecen H-4001 (Hungary); Saito, A.; Baba, H.; Iwasaki, H.; Notani, M.; Ohnishi, T. K.; Ong, H. J.; Sakurai, H.; Shimoura, S.; Tamaki, M. [University of Tokyo, Tokyo 1130033 (Japan); Aoi, N.; Imai, N.; Ishihara, M.; Kishida, T.; Kubo, T.; Michimasa, S.; Minemura, T.; Motobayashi, T. [Institute of Physical and Chemical Research, 2-1 Hirosawa, Wako, Saitama 351-0198 (Japan)] (and others)
2006-03-13T23:59:59.000Z
The 1H(27F,25,26,27F) reactions have been studied at 40 MeV/nucleon average energy using a liquid hydrogen target. For 25F, 26F and 27F nuclei, we have observed two {gamma}-ray peaks each originating from the decay of two bound excited states. This is the first sign of the existence of bound excited states in 26,27F. The presence of a single bound excited state in 27F is a clear indication of a substantial change in the structure of the fluorine isotopes approaching the neutron dripline. The proposed second excited states in 25,26,27F nuclei have no counterparts in either the psd or the sdpf shell model calculations suggesting the appearance of nuclear structure effects lying out of these model spaces.
Violation of Energy Bounds in Designer Gravity
Thomas Hertog
2006-07-31T23:59:59.000Z
We continue our study of the stability of designer gravity theories, where one considers anti-de Sitter gravity coupled to certain tachyonic scalars with boundary conditions defined by a smooth function W. It has recently been argued there is a lower bound on the conserved energy in terms of the global minimum of W, if the scalar potential arises from a superpotential P and the scalar reaches an extremum of P at infinity. We show, however, there are superpotentials for which these bounds do not hold.
USF System USF USFSP USFSM Number: 10-051
Meyers, Steven D.
-plumbing, greywater reuse, and water metering. C. Transportation includes, but is not limited to: p
USF System USF USFSP USFSM Number: 0-219
Meyers, Steven D.
and disbursement of Trust Fund Challenge Grants; and other functions and responsibilities of the Foundation under of South Florida. 1. Endowments for Scholarships, Library Resources, Academic Programs, and Other Endowed Activities. Trust Fund Challenge Grants established for the endowment of scholarships, library resources
USF System USF USFSP USFSM Number: 10-051
Meyers, Steven D.
of clean energy, increasing energy efficiency, and diminishing life-cycle impacts and our consumption environments (including water management), transportation, energy, and consumption (waste and recycling to: materials reuse and building renovation, retrofitting, green building, smart masonry, materials
USF System USF USFSP USFSM Number: 0-515
Meyers, Steven D.
Information Responsible Office: Information Technology Date of Origin: 6-29-06 Date Last Amended: 12 identity information which it collects in its technology systems. In support of its mission of teaching information that it maintains in its technology systems. Personal identity information must be protected from
USF System USF USFSP USFSM Number: 0-301
Meyers, Steven D.
, and department and unit heads must impress the importance of such a commitment upon faculty, students, staff only by each individual's firm commitment to academic ideals and integrity. Mentors, project directors
USF System USF USFSP USFSM Number: 6-006
Meyers, Steven D.
, Hazardous Waste Management, Industrial Hygiene, Laboratory Safety, Occupational Safety and Risk Management Safety, #12;Hazardous Waste Management, Industrial Hygiene, Laboratory Safety, Occupational Safety and Risk Management. C. Division of Environmental Health and Safety (EH&S): 1. Develops, implements
USF System USF USFSP USFSM Number: 6-016
Meyers, Steven D.
program which includes: Fire Safety, Hazardous Waste Management, Industrial Hygiene, Laboratory Safety, Occupational Safety and Risk Management. For these programs, the Vice President for Administrative Services has delegated to the Director of Environmental Health and Safety the responsibility and authority for managing
Out of Bounds Additive Manufacturing Christopher
Pennycook, Steve
#12;Out of Bounds Additive Manufacturing Christopher Holshouser, Clint Newell, and Sid Palas, Tenn. The Big Area Additive Manufacturing system has the potential to manufacture parts completely) are working on an additive manufacturing (AM) system (Big Area Additive Manufacturing, or BAAM) capable
Learning Bounds for Importance Weighting Corinna Cortes
Mohri, Mehryar
- - - - - - - - - - - - - - - - - - - - - - - - - - - + + - - - - - - - - - + + - - - - - - - - + + - - - - - - - - - + + - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - x x x 20 100 500 5000 0.0 0.2 0.4 0.6 0.8 1.0 Train interest. We use these bounds to guide the definition of an alternative reweighting algorithm and report between the two distributions. For example, in web search applications, there may be data regarding users
Upper bounds for Steklov eigenvalues on surfaces
Girouard, Alexandre
2012-01-01T23:59:59.000Z
We give explicit isoperimetric upper bounds for all Steklov eigenvalues of a compact orientable surface with boundary, in terms of the genus, the length of the boundary, and the number of boundary components. Our estimates generalize a recent result of Fraser-Schoen, as well as the classical inequalites obtained by Hersch-Payne-Schiffer, whose approach is used in the present paper.
Online Deadline Scheduling with Bounded Energy Efficiency
Wong, Prudence W.H.
Online Deadline Scheduling with Bounded Energy Efficiency Joseph Wun-Tat Chan1 , Tak-Wah Lam 2 concern when compared to throughput and the schedules targeted may be very poor in energy efficiency subject to a user-defined threshold of energy efficiency. We first show that all deterministic online
Estimating Bounds for Quadratic Assignment Problems Associated ...
2010-09-17T23:59:59.000Z
?Department of Mathematics and Statistics, Arizona State University, Tempe, AZ 85287-. 1804 ... Department of Industrial and Enterprise System Engineering , ... Malah used the projection method [13] to estimate lower and upper bounds for ...... DIMACS 25 Series in Discrete Mathematics and Theoretical Computer Sci-.
A Probabilistic Upper Bound on Differential Entropy
Massachusetts at Amherst, University of
one-dimensional distribution, given the support of the distribution and a sample from that distribution, is presented. No knowledge beyond the sup- port of the unknown distribution is required. Previous distribution-free bounds on the cumulative distribution function of a random variable given a sample
Undergraduate Parallel Computing at USF
Barr, Valerie
: one with four dual-core Opterons, two with two quad-core Xeons · All systems run versions of Fedora
The Bounded L2 Curvature Conjecture
Sergiu Klainerman; Igor Rodnianski; Jeremie Szeftel
2014-10-10T23:59:59.000Z
This is the main paper in a sequence in which we give a complete proof of the bounded $L^2$ curvature conjecture. More precisely we show that the time of existence of a classical solution to the Einstein-vacuum equations depends only on the $L^2$-norm of the curvature and a lower bound on the volume radius of the corresponding initial data set. We note that though the result is not optimal with respect to the standard scaling of the Einstein equations, it is nevertheless critical with respect to its causal geometry. Indeed, $L^2$ bounds on the curvature is the minimum requirement necessary to obtain lower bounds on the radius of injectivity of causal boundaries. We note also that, while the first nontrivial improvements for well posedness for quasilinear hyperbolic systems in spacetime dimensions greater than 1+1 (based on Strichartz estimates) were obtained in [Ba-Ch1] [Ba-Ch2] [Ta1] [Ta2] [Kl-R1] and optimized in [Kl-R2] [Sm-Ta], the result we present here is the first in which the full structure of the quasilinear hyperbolic system, not just its principal part, plays a crucial role. To achieve our goals we recast the Einstein vacuum equations as a quasilinear $so(3,1)$-valued Yang-Mills theory and introduce a Coulomb type gauge condition in which the equations exhibit a specific new type of \\textit{null structure} compatible with the quasilinear, covariant nature of the equations. To prove the conjecture we formulate and establish bilinear and trilinear estimates on rough backgrounds which allow us to make use of that crucial structure. These require a careful construction and control of parametrices including $L^2$ error bounds which is carried out in [Sz1]-[Sz4], as well as a proof of sharp Strichartz estimates for the wave equation on a rough background which is carried out in \\cite{Sz5}.
Superactivation, unlockability, and secrecy distribution of bound information
Prettico, Giuseppe [Institut de Ciencies Fotoniques, E-08860 Castelldefels, Barcelona (Spain); Bae, Joonwoo [School of Computational Sciences, Korea Institute for Advanced Study, Seoul 130-722 (Korea, Republic of)
2011-04-15T23:59:59.000Z
Bound information, a cryptographic classical analog of bound entanglement, is defined as classical secret correlations from which no secret key can be extracted. Its existence was conjectured and shown in a multipartite case. In this work, we provide an example of bound information in a four-partite scenario. Later, using this example, we prove that bound information can be superactivated and moreover unlockable in a finite-copy scenario. We also show that bound entangled states (bound information) can be used to distribute multipartite pure-state entanglements (secret keys).
USF System USF USFSP USFSM USFP Number: USF4.0102
Meyers, Steven D.
0 Student Green Energy 1.00 1.00 0 Block Fee per Term Activity and Service 7.00 0 0 Athletic 10.00 5 Green Energy 32.00 (2) Repeat Surcharge - Each student enrolled in the same undergraduate course more
Performance bound for quantum absorption refrigerators
Luis A. Correa; José P. Palao; Gerardo Adesso; Daniel Alonso
2013-04-29T23:59:59.000Z
An implementation of quantum absorption chillers with three qubits has been recently proposed, that is ideally able to reach the Carnot performance regime. Here we study the working efficiency of such self-contained refrigerators, adopting a consistent treatment of dissipation effects. We demonstrate that the coefficient of performance at maximum cooling power is upper bounded by 3/4 of the Carnot performance. The result is independent of the details of the system and the equilibrium temperatures of the external baths. We provide design prescriptions that saturate the bound in the limit of a large difference between the operating temperatures. Our study suggests that delocalized dissipation, which must be taken into account for a proper modelling of the machine-baths interaction, is a fundamental source of irreversibility which prevents the refrigerator from approaching the Carnot performance arbitrarily closely in practice. The potential role of quantum correlations in the operation of these machines is also investigated.
Extremum seeking with bounded update rates
Scheinker, Alexander [Los Alamos National Lab. (LANL), Los Alamos, NM (United States). RF Control Group; Krsti?, Miroslav [Univ. of California, San Diego, La Jolla, CA (United States). Dept. of Mechanical and Aerospace Engineering
2013-11-16T23:59:59.000Z
In this work, we present a form of extremum seeking (ES) in which the unknown function being minimized enters the system’s dynamics as the argument of a cosine or sine term, thereby guaranteeing known bounds on update rates and control efforts. We present general n-dimensional optimization and stabilization results as well as 2D vehicle control, with bounded velocity and control efforts. For application to autonomous vehicles, tracking a source in a GPS denied environment with unknown orientation, this ES approach allows for smooth heading angle actuation, with constant velocity, and in application to a unicycle-type vehicle results in control ability as if the vehicle is fully actuated. Our stability analysis is made possible by the classic results of Kurzweil, Jarnik, Sussmann, and Liu, regarding systems with highly oscillatory terms. In our stability analysis, we combine the averaging results with a semi-global practical stability result under small parametric perturbations developed by Moreau and Aeyels.
Axel Maas; Daniel Zwanziger
2013-01-15T23:59:59.000Z
We derive some exact bounds on the free energy $W(J)$ in QCD, where $J_\\mu^b$ is a source for the gluon field $A_\\mu^b$ in the minimal Landau gauge, and $W(J)$ is the generating functional of connected gluon correlators. Among other results, we show that for a static source $J(x) = h$ the free energy vanishes, $W(h) = 0$, together with its first derivative, ${\\partial W(h) \\over \\partial h} = 0,$ for all $h$, no matter how strong. Thus the system does not respond to a static color probe. We also present numerical evaluations of the free energy $W(J)$ and find that the bounds are well satisfied and in fact undersaturated.
Multipartite secret key distillation and bound entanglement
Augusiak, Remigiusz; Horodecki, Pawel [Faculty of Applied Physics and Mathematics, Gdansk University of Technology, Narutowicza 11/12, 80-952 Gdansk (Poland) and ICFO-Institute Ciencies Fotoniques, Mediterranean Technology Park, 08860 Castelldefels (Barcelona) (Spain); Faculty of Applied Physics and Mathematics, Gdansk University of Technology, Narutowicza 11/12, 80-952 Gdansk (Poland)
2009-10-15T23:59:59.000Z
Recently it has been shown that quantum cryptography beyond pure entanglement distillation is possible and a paradigm for the associated protocols has been established. Here we systematically generalize the whole paradigm to the multipartite scenario. We provide constructions of new classes of multipartite bound entangled states, i.e., those with underlying twisted Greenberger-Horne-Zeilinger (GHZ) structure and nonzero distillable cryptographic key. We quantitatively estimate the key from below with the help of the privacy squeezing technique.
Multipartite secret key distillation and bound entanglement
Remigiusz Augusiak; Pawel Horodecki
2009-09-25T23:59:59.000Z
Recently it has been shown that quantum cryptography beyond pure entanglement distillation is possible and a paradigm for the associated protocols has been established. Here we systematically generalize the whole paradigm to the multipartite scenario. We provide constructions of new classes of multipartite bound entangled states, i.e., those with underlying twisted GHZ structure and nonzero distillable cryptographic key. We quantitatively estimate the key from below with help of the privacy squeezing technique.
Semirelativistic Bound-State Equations: Trivial Considerations
Wolfgang Lucha; Franz F. Schöberl
2014-07-17T23:59:59.000Z
Observing renewed interest in long-standing (semi-) relativistic descriptions of bound states, we would like to make a few comments on the eigenvalue problem posed by the spinless Salpeter equation and, illustrated by the examples of the nonsingular Woods-Saxon potential and the singular Hulth\\'en potential, recall elementary tools that practitioners looking for analytic albeit approximate solutions might find useful in their quest.
Structure of the Ebola Virus Glycoprotein Bound to an Antibody...
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
Structure of the Ebola Virus Glycoprotein Bound to an Antibody from a Human Survivor Structure of the Ebola Virus Glycoprotein Bound to an Antibody from a Human Survivor Print...
Bounds for the Quadratic Assignment Problem Using the Bundle ...
2003-08-27T23:59:59.000Z
Aug 27, 2003 ... f rame w or k w e in v estigate the e ff ect on the bound a f ter fixing an .... child¤¢ problems; PB and QPB are pro j ected eigen v alue bound and ...
MULTI-DEGREE BOUNDS ON THE BETTI NUMBERS OF REAL ...
2015-07-28T23:59:59.000Z
Jul 28, 2015 ... Multidegree bounds, Betti numbers, Smith inequalities, semi-algebraic sets, polynomial partitioning, incidence problems. Basu was partially ...
Lower Bounds on Interactive Compressibility by Constant-Depth Circuits
Edinburgh, University of
Lower Bounds on Interactive Compressibility by Constant-Depth Circuits Arkadev Chattopadhyay to prove the first lower bounds on general probabilistic multi-round instance compression. We show, and strengthens results of Dubrov and Ishai [DI06]. We also show that a similar lower bound holds for Majority. We
Asynchronous Forward-Bounding for Distributed Constraints Optimization
Meisels, Amnon
and Bound scheme. Agents extend a partial solution as long as the lower bound on its cost, does not exceed the bounds on the cost of solutions by sending copies of the partial assignment to all unas- signed agents, attempting to generate a solution that is globally optimal with respect to the costs of constraints between
COMPLETE BOUNDED NULL CURVES IMMERSED IN C3
Martín, Francisco
COMPLETE BOUNDED NULL CURVES IMMERSED IN C3 AND SL(2, C) FRANCISCO MARTIN, MASAAKI UMEHARA, AND KOTARO YAMADA ABSTRACT. We construct a simply connected complete bounded Bryant surface in the hyperbolic 3-space H3. Such a surface in H3 can be lifted as a complete bounded null curve in SL(2, C). Using
Stronger security bounds for permutations Daniel J. Bernstein ?
Bernstein, Daniel
bounds for Wegman-Carter-Shoup authenticators. 1 Introduction Let p be a uniform random, this paper gives a new proof of my recent security bounds for Wegman-Carter-Shoup authenticators. The new and (2) the usual intuitive security bound for Wegman- Carter authenticators. See Sections 3 through 5
Stronger security bounds for permutations Daniel J. Bernstein
Bernstein, Daniel
as a generalization of the author's recent improvement in security bounds for Wegman-Carter-Shoup authenticators. 1, this paper gives a new proof of my recent security bounds for Wegman-Carter-Shoup authenticators. The new and (2) the usual intuitive security bound for Wegman- Carter authenticators. See Sections 3 through 5
Simultaneous proof of the dimensional and of Jacobi's bound
Ollivier, FranÃ§ois
Simultaneous proof of the dimensional conjecture and of Jacobi's bound F. Ollivier LIX, UMR CNRSÂ30 2010. Introduction Jacobi's bound, probably formulated by Jacobi around 1840 [2] is an upper bound that the differential codimension of a component defined by a system of r equations is at most r, showing that Jacobi
Independence results for variants of sharply bounded induction
Kolodziejczyk, Leszek
formulas in Buss' original language of bounded arithmetic (with x/2 but not x/2y ), has recently been Buss' bounded arithmetic theory S2 has a rich structure of subtheories, all believed to be proper result for the full sharply bounded induction scheme, T0 2 , formulated in Buss' original language
Bounds on the Energy Consumption of Computational Andrew Gearhart
California at Berkeley, University of
Bounds on the Energy Consumption of Computational Kernels Andrew Gearhart Electrical Engineering not necessarily reflect the position or the policy of the sponsors. #12;Bounds on the Energy Consumption Fall 2014 #12;Bounds on the Energy Consumption of Computational Kernels Copyright 2014 by Andrew Scott
Upper bounds for multiphase composites in any dimension
Luis Silvestre
2010-10-12T23:59:59.000Z
We prove a rigorous upper bound for the effective conductivity of an isotropic composite made of several isotropic components in any dimension. This upper bound coincides with the Hashin Shtrikman bound when the volume ratio of all phases but any two vanish.
Rigorous bounds on Transmission, Reflection, and Bogoliubov coefficients
Boonserm, Petarpa
2009-01-01T23:59:59.000Z
This thesis describes the development of some basic mathematical tools of wide relevance to mathematical physics. Transmission and reflection coefficients are associated with quantum tunneling phenomena, while Bogoliubov coefficients are associated with the mathematically related problem of excitations of a parametric oscillator. While many approximation techniques for these quantities are known, very little is known about rigorous upper and lower bounds. In this thesis four separate problems relating to rigorous bounds on transmission, reflection and Bogoliubov coefficients are considered, divided into four separate themes: 1) Bounding the Bogoliubov coefficients; 2) Bounding the greybody factors for Schwarzschild black holes; 3) Transformation probabilities and the Miller--Good transformation; 4) Analytic bounds on transmission probabilities.
Extremum seeking with bounded update rates
DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)
Scheinker, Alexander; Krsti?, Miroslav
2014-01-01T23:59:59.000Z
In this work, we present a form of extremum seeking (ES) in which the unknown function being minimized enters the system’s dynamics as the argument of a cosine or sine term, thereby guaranteeing known bounds on update rates and control efforts. We present general n-dimensional optimization and stabilization results as well as 2D vehicle control, with bounded velocity and control efforts. For application to autonomous vehicles, tracking a source in a GPS denied environment with unknown orientation, this ES approach allows for smooth heading angle actuation, with constant velocity, and in application to a unicycle-type vehicle results in control abilitymore »as if the vehicle is fully actuated. Our stability analysis is made possible by the classic results of Kurzweil, Jarnik, Sussmann, and Liu, regarding systems with highly oscillatory terms. In our stability analysis, we combine the averaging results with a semi-global practical stability result under small parametric perturbations developed by Moreau and Aeyels.« less
Lookback time bounds from energy conditions
Santos, J. [Universidade Federal do Rio Grande do Norte, Departamento de Fisica C.P. 1641, 59072-970 Natal, RN (Brazil); Departamento de Astronomia, Observatorio Nacional, 20921-400, Rio de Janeiro, RJ (Brazil); Centro Brasileiro de Pesquisas Fisicas, 22290-180 Rio de Janeiro, RJ (Brazil); Alcaniz, J. S. [Departamento de Astronomia, Observatorio Nacional, 20921-400, Rio de Janeiro, RJ (Brazil); Reboucas, M. J. [Centro Brasileiro de Pesquisas Fisicas, 22290-180 Rio de Janeiro, RJ (Brazil); Pires, N. [Universidade Federal do Rio Grande do Norte, Departamento de Fisica C.P. 1641, 59072-970 Natal, RN (Brazil)
2007-08-15T23:59:59.000Z
In general relativity, the energy conditions are invoked to restrict general energy-momentum tensors on physical grounds. We show that in the standard Friedmann-Lemaitre-Robertson-Walker (FLRW) approach to cosmological modeling, where the energy and matter components of the cosmic fluid are unknown, the energy conditions provide model-independent bounds on the behavior of the lookback time of cosmic sources as a function of the redshift for any value of the spatial curvature. We derive and confront such bounds with a lookback time sample which is built from the age estimates of 32 galaxies lying in the interval 0.11 < or approx. z < or approx. 1.84 and by assuming the total expanding age of the Universe to be 13.7{+-}0.2 Gyr, as obtained from current cosmic microwave background experiments. In agreement with previous results, we show that all energy conditions seem to have been violated at some point of the recent past of cosmic evolution.
Bounds on quantum communication via Newtonian gravity
D. Kafri; G. J. Milburn; J. M. Taylor
2014-10-08T23:59:59.000Z
Newtonian gravity yields specific observable consequences, the most striking of which is the emergence of a $1/r^2$ force. In so far as communication can arise via such interactions between distant particles, we can ask what would be expected for a theory of gravity that only allows classical communication. Many heuristic suggestions for gravity-induced decoherence have this restriction implicitly or explicitly in their construction. Here we show that communication via a $1/r^2$ force has a minimum noise induced in the system when the communication cannot convey quantum information, in a continuous time analogue to Bell's inequalities. Our derived noise bounds provide tight constraints from current experimental results on any theory of gravity that does not allow quantum communication.
Bounding biomass in the Fisher equation
Daniel A. Birch; Yue-Kin Tsang; William R. Young
2007-03-17T23:59:59.000Z
The FKPP equation with a variable growth rate and advection by an incompressible velocity field is considered as a model for plankton dispersed by ocean currents. If the average growth rate is negative then the model has a survival-extinction transition; the location of this transition in the parameter space is constrained using variational arguments and delimited by simulations. The statistical steady state reached when the system is in the survival region of parameter space is characterized by integral constraints and upper and lower bounds on the biomass and productivity that follow from variational arguments and direct inequalities. In the limit of zero-decorrelation time the velocity field is shown to act as Fickian diffusion with an eddy diffusivity much larger than the molecular diffusivity and this allows a one-dimensional model to predict the biomass, productivity and extinction transitions. All results are illustrated with a simple growth and stirring model.
Bounding biomass in the Fisher equation
Birch, Daniel A; Young, William R
2007-01-01T23:59:59.000Z
The FKPP equation with a variable growth rate and advection by an incompressible velocity field is considered as a model for plankton dispersed by ocean currents. If the average growth rate is negative then the model has a survival-extinction transition; the location of this transition in the parameter space is constrained using variational arguments and delimited by simulations. The statistical steady state reached when the system is in the survival region of parameter space is characterized by integral constraints and upper and lower bounds on the biomass and productivity that follow from variational arguments and direct inequalities. In the limit of zero-decorrelation time the velocity field is shown to act as Fickian diffusion with an eddy diffusivity much larger than the molecular diffusivity and this allows a one-dimensional model to predict the biomass, productivity and extinction transitions. All results are illustrated with a simple growth and stirring model.
Improved Bounds on Universal Extra Dimensions
Thomas Flacke
2006-05-13T23:59:59.000Z
We report on recent constraints on models with a flat ``universal'' extra dimension in which all Standard Model fields propagate in the bulk. A significantly improved constraint on the compactification scale is obtained from the extended set of electroweak precision observables accurately measured at LEP1 and LEP2. We find a lower bound of 1/R > 700 (800) GeV at the 99% (95%) confidence level. Comparison of this constraint with the relic density of Kaluza-Klein dark matter for the Minimal UED model points towards the necessity of including non-minimal boundary terms which motivates studying alternative Kaluza-Klein dark matter candidates. Results for the one-loop induced magnetic dipole moment for Kaluza-Klein neutrino dark matter are presented. This talk is based on Phys.Rev.D73:095002,2006 and hep-ph/0601161.
Bounds on charge and heat diffusivities in momentum dissipating holography
Andrea Amoretti; Alessandro Braggio; Nicodemo Magnoli; Daniele Musso
2015-06-17T23:59:59.000Z
Inspired by a recently conjectured universal bound for thermo-electric diffusion constants in quantum critical, strongly coupled systems and relying on holographic analytical computations, we investigate the possibility of formulating Planckian bounds in different holographic models featuring momentum dissipation. For a simple massive gravity dilaton model at zero charge density we find robust linear in temperature resistivity and entropy density alongside a constant electric susceptibility. In addition we explicitly find that the sum of the thermo-electric diffusion constants is bounded.
Approximation Hardness of TSP with Bounded Metrics (Revised Version)
Eckmiller, Rolf
inequality---within that conÂ stant. This lower bound was improved by Engebretsen [8] to 2805=2804 \\Gamma ffl
Global Error bounds for systems of convex polynomials over ...
2011-11-11T23:59:59.000Z
This paper is devoted to study the Lipschitzian/Holderian type global error ...... set is not neccessarily compact, we obtain the Hölder global error bound result.
Optimization Online - A branch and bound algorithm for the global ...
Jaroslav Fowkes
2011-12-05T23:59:59.000Z
Dec 5, 2011 ... A branch and bound algorithm for the global optimization of Hessian ... with a Lipschitz continuous Hessian over a compact, convex set.
Algorithm for Lot Sizing with Inventory Bounds and Fixed Costs
Alper Atamturk
2007-06-26T23:59:59.000Z
Jun 26, 2007 ... An O(n^2) Algorithm for Lot Sizing with Inventory Bounds and Fixed Costs. Alper Atamturk (atamturk ***at*** berkeley.edu) Simge Kucukyavuz ...
efficient and cheap bounds for (standard) quadratic optimization1
2005-07-08T23:59:59.000Z
for optimization problems is the availability of good and/or efficiently computable bounds on the optimum value of the problem. This well- known fact has induced ...
Stronger security bounds for Wegman-Carter-Shoup authenticators
Bernstein, Daniel
Stronger security bounds for Wegman-Carter-Shoup authenticators Daniel J. Bernstein Department probabilities for f. Keywords: mode of operation, authentication, MAC, Wegman-Carter, provable security 1
A Hierarchy of Bounds for Stochastic Mixed-Integer Programs
2009-05-29T23:59:59.000Z
A Hierarchy of Bounds for Stochastic. Mixed-Integer Programs. 1. Burhaneddin Sand?kç?. The University of Chicago Booth School of Business, Chicago, ...
More Branch-and-Bound Experiments in Convex Nonlinear Integer ...
pierre
Sep 29, 2011 ... Department of Industrial and Operations Engineering, University of Michigan, Ann Arbor, MI. 48109 ...... Branch-and-bound methods: a survey.
Tsirelson's bound from a Generalised Data Processing Inequality
Dahlsten, Oscar C O; Renner, Renato
2011-01-01T23:59:59.000Z
The strength of quantum correlations is bounded from above by Tsirelson's bound. We establish a connection between this bound and the fact that correlations between two systems cannot increase under local operations, a property known as the \\emph{data processing inequality}. More specifically, we consider arbitrary convex probabilistic theories. These can be equipped with an entropy measure that naturally generalizes the von Neumann entropy, as shown recently in [Short and Wehner]. We prove that if the data processing inequality holds with respect to this generalized entropy measure then the underlying theory necessarily respects Tsirelson's bound. We moreover generalise this statement to any entropy measure satisfying certain minimal requirements.
A scalable bounding method for multi-stage stochastic integer ...
2014-05-30T23:59:59.000Z
For each instance, we record the total runtime and the gap obtained by our bounding approach. ..... High-performance computing for asset-liability management.
Generalized Hofmann quantum process fidelity bounds for quantum filters
Michal Sedlak; Jaromír Fiurášek
2015-06-11T23:59:59.000Z
We propose and investigate bounds on quantum process fidelity of quantum filters, i.e. probabilistic quantum operations represented by a single Kraus operator K. These bounds generalize the Hofmann bounds on quantum process fidelity of unitary operations [H.F. Hofmann, Phys. Rev. Lett. 94, 160504 (2005)], and are based on probing the quantum filter by pure states forming two mutually unbiased bases. Determination of these bounds therefore requires much less measurements than full quantum process tomography. We find that it is particularly suitable to construct one of the probe basis from the right eigenstates of K, because in this case the bounds are tight in the sense that if the actual filter coincides with the ideal one then both the lower and upper bounds are equal to one. We theoretically investigate application of these bounds to a two-qubit optical quantum filter formed by interference of two photons on a partially polarizing beam splitter. For experimentally convenient choice of factorized input states and measurements we study the tightness of the bounds. We show that more stringent bounds can be obtained by more sophisticated processing of the data using convex optimization and we compare our methods for different choice of the input probe states.
New Fractional Error Bounds for Polynomial Systems with ...
2014-07-27T23:59:59.000Z
techniques are largely based on variational analysis and generalized differentiation, ...... Example 3.10 (failure of global error bounds for polynomial systems).
Optimization Online - Bound Improvement for LNG Inventory Routing
Yufen Shao
2014-02-14T23:59:59.000Z
Feb 14, 2014 ... In this paper, we develop methods for improving both lower and upper bounds for a previously stated form of an LNG inventory routing problem.
A lower bound of quantum conditional mutual information
Lin Zhang; Junde Wu
2014-09-29T23:59:59.000Z
In this paper, a lower bound of quantum conditional mutual information is obtained by employing the Peierls-Bogoliubov inequality and Golden Thompson inequality. Comparison with the bounds obtained by other researchers indicates that our result is independent of any measurements. It may give some new insights over squashed entanglement and perturbations of Markov chain states.
Stronger security bounds for permutations Daniel J. Bernstein #
Bernstein, Daniel
as a generalization of the author's recent improvement in security bounds for WegmanCarterShoup authenticators. 1 bounds for WegmanCarterShoup authenticators. The new proof can be viewed as a factorization for Wegman Carter authenticators. See Sections 3 through 5. # The author was supported by the National
The strength of sharply bounded induction requires MSP
Kolodziejczyk, Leszek
in the language of Buss, i.e. with x/2 but without the MSP function x/2y , does not prove that every nontrivial arithmetical fact or the totality of some extremely simple function. Among subsystems of Buss' bounded is essential for Jerabek's argument, so the status of T0 2 formulated in Buss' original bounded arithmetic
MAX-PLANCK-INSTITUT.. ( Lower Bounds for Set Intersection
. Mehlhorn R. Raman C. Uhrig MPI- I-92-127 October 1992 o mPD_ _ _ _ _ _ _ IN F 0 R M AT I K _ _ _ _ __ Im Stadtwald 66123 Saarbrücken Germany #12;Lower Bounds for Set Intersection Queries P. Dietz K. Mehlhorn R. Raman C. Uhrig MPI-I-92-127 October 1992 #12;Lower Bounds for Set Intersection Queries PAUL DIETZ KURT
Fundamental Bounds on the Accuracy of Network Performance Measurements
Roughan, Matthew
Fundamental Bounds on the Accuracy of Network Performance Measurements Matthew Roughan School.roughan@adelaide.edu.au> ABSTRACT This paper considers the basic problem of "how accurate can we make Internet performance of Heisenberg inequal- ity describing the bounds in our knowledge of the performance of a network. The results
Fundamental Bounds on the Accuracy of Network Performance Measurements
Roughan, Matthew
Fundamental Bounds on the Accuracy of Network Performance Measurements Matthew Roughan School.roughan@adelaide.edu.au> ABSTRACT This paper considers the basic problem of ``how accurate can we make Internet performance of Heisenberg inequal ity describing the bounds in our knowledge of the performance of a network. The results
Froissart Bound on Inelastic Cross Section Without Unknown Constants
Martin, André
2015-01-01T23:59:59.000Z
Assuming that axiomatic local field theory results hold for hadron scattering, Andr\\'e Martin and S. M. Roy recently obtained absolute bounds on the D-wave below threshold for pion-pion scattering and thereby determined the scale of the logarithm in the Froissart bound on total cross sections in terms of pion mass only. Previously, Martin proved a rigorous upper bound on the inelastic cross-section $\\sigma_{inel}$ which is one-fourth of the corresponding upper bound on $\\sigma_{tot}$, and Wu, Martin,Roy and Singh improved the bound by adding the constraint of a given $\\sigma_{tot}$. Here we use unitarity and analyticity to determine, without any high energy approximation, upper bounds on energy averaged inelastic cross sections in terms of low energy data in the crossed channel. These are Froissart-type bounds without any unknown coefficient or unknown scale factors and can be tested experimentally. Alternatively, their asymptotic forms,together with the Martin-Roy absolute bounds on pion-pion D-waves below t...
Radio-Frequency Rectification on Membrane Bound Pores
Sujatha Ramachandran; Robert H. Blick; Daniel W. van der Weide
2007-09-12T23:59:59.000Z
We present measurements on direct radio-frequency pumping of ion channels and pores bound in bilipid membranes. We make use of newly developed microcoaxes, which allow delivering the high frequency signal in close proximity to the membrane bound proteins and ion channels. We find rectification of the radio-frequency signal, which is used to pump ions through the channels and pores.
Bounded Uncertainty Roadmaps for Path Planning Leonidas J. Guibas1
Guibas, Leonidas J.
Bounded Uncertainty Roadmaps for Path Planning Leonidas J. Guibas1 , David Hsu2 , Hanna Kurniawati2 uncertainty during planning. We in- troduce the notion of a bounded uncertainty roadmap (BURM) and use, and it is not much slower than classic probabilistic roadmap planning algorithms, which ignore uncertainty
Solving LWE problem with bounded errors in polynomial time
International Association for Cryptologic Research (IACR)
Solving LWE problem with bounded errors in polynomial time Jintai Ding1,2 Southern Chinese call the learning with bounded errors (LWBE) problems, we can solve it with complexity O(nD ). Keywords, this problem corresponds to the learning parity with noise (LPN) problem. There are several ways to solve
Diffusivity bounds for 1D Brownian polymers
Pierre Tarrès; Bálint Tóth; Benedek Valkó
2012-06-08T23:59:59.000Z
We study the asymptotic behavior of a self-interacting one-dimensional Brownian polymer first introduced by Durrett and Rogers [Probab. Theory Related Fields 92 (1992) 337--349]. The polymer describes a stochastic process with a drift which is a certain average of its local time. We show that a smeared out version of the local time function as viewed from the actual position of the process is a Markov process in a suitably chosen function space, and that this process has a Gaussian stationary measure. As a first consequence, this enables us to partially prove a conjecture about the law of large numbers for the end-to-end displacement of the polymer formulated in Durrett and Rogers [Probab. Theory Related Fields 92 (1992) 337--349]. Next we give upper and lower bounds for the variance of the process under the stationary measure, in terms of the qualitative infrared behavior of the interaction function. In particular, we show that in the locally self-repelling case (when the process is essentially pushed by the negative gradient of its own local time) the process is super-diffusive.
Local purity distillation with bounded classical communication
Hari Krovi; Igor Devetak
2007-05-28T23:59:59.000Z
Local pure states are an important resource for quantum computing. The problem of distilling local pure states from mixed ones can be cast in an information theoretic paradigm. The bipartite version of this problem where local purity must be distilled from an arbitrary quantum state shared between two parties, Alice and Bob, is closely related to the problem of separating quantum and classical correlations in the state and in particular, to a measure of classical correlations called the one-way distillable common randomness. In Phys. Rev. A 71, 062303 (2005), the optimal rate of local purity distillation is derived when many copies of a bipartite quantum state are shared between Alice and Bob, and the parties are allowed unlimited use of a unidirectional dephasing channel. In the present paper, we extend this result to the setting in which the use of the channel is bounded. We demonstrate that in the case of a classical-quantum system, the expression for the local purity distilled is efficiently computable and provide examples with their tradeoff curves.
Bounds on 2m/r for static perfect fluids
J. Mark Heinzle
2007-08-24T23:59:59.000Z
For spherically symmetric relativistic perfect fluid models, the well-known Buchdahl inequality provides the bound $2 M/R \\leq 8/9$, where $R$ denotes the surface radius and $M$ the total mass of a solution. By assuming that the ratio $p/\\rho$ be bounded, where $p$ is the pressure, $\\rho$ the density of solutions, we prove a sharper inequality of the same type, which depends on the actual bound imposed on $p/\\rho$. As a special case, when we assume the dominant energy condition $p/\\rho \\leq 1$, we obtain $2 M/R \\leq 6/7$.
Upper bounds on wavepacket spreading for random Jacobi matrices
Svetlana Jitomirskaya; Hermann Schulz-Baldes
2007-02-15T23:59:59.000Z
A method is presented for proving upper bounds on the moments of the position operator when the dynamics of quantum wavepackets is governed by a random (possibly correlated) Jacobi matrix. As an application, one obtains sharp upper bounds on the diffusion exponents for random polymer models, coinciding with the lower bounds obtained in a prior work. The second application is an elementary argument (not using multiscale analysis or the Aizenman-Molchanov method) showing that under the condition of uniformly positive Lyapunov exponents, the moments of the position operator grow at most logarithmically in time.
Mother and Daughter Reports about Upward Transfers
Lin, I-Fen
2008-01-01T23:59:59.000Z
parent’s and adult child’s reports of support and contact.of elderly parents’ and children’s reports. ComparativeElderly in Asia Research Reports, No. 96 – 36. Ann Arbor,
World crude capacity, conversion capability inch upward
Rhodes, A.K.
1994-12-19T23:59:59.000Z
Reported world crude capacity increased almost 1 million b/d, while conversion processes--fluid catalytic cracking (FCC), hydrocracking, coking--increased more than 1.7 million b/d or 8.3%, according to the Journal's most recent survey of world refining capacity. As a measure of capacity growth in the past year, changes in distillation capacities (atmospheric plus vacuum) were calculated for three major refining regions. The year-to-year comparison indicates: for the US, an increase of 293,000 b/d, or 1.3%; for the European Economic Community (E.E.C.), an increase of 431,000 b/d, or 2.6%; and for Asia/Pacific, excluding China, an increase of 122,000 b/d, or 1.1%. In addition to the compiled data the paper describes the survey layout, regional changes, conversion units, hydroprocessing, company size, oxygenates, and construction.
Several new lower bounds for football pool systems
Litsyn, Simon
Several new lower bounds for football pool systems Uri Blass and Simon Litsyn TelAviv University a big deal of attention due to its equivalence to constructing systems for football pools. A survey
Accumulation Rate of Bound States of Dipoles in Graphene
Simone Rademacher; Heinz Siedentop
2015-07-08T23:59:59.000Z
We prove that the bound state energies of the two-dimensional massive Dirac operator with dipole type potentials accumulate with exponentials rate at the band edge. In fact we prove a corresponding formula of De Martino et al (2014)
Time Bounds for Shared Objects in Partially Synchronous Systems
Wang, Jiaqi
2012-02-14T23:59:59.000Z
Shared objects are a key component in today's large distributed systems. Linearizability is a popular consistency condition for such shared objects which gives the illusion of sequential execution of operations. The time bound of an operation...
Stronger security bounds for WegmanCarterShoup authenticators
Bernstein, Daniel
Stronger security bounds for WegmanCarterShoup authenticators Daniel J. Bernstein # Department, WegmanCarter, provable security 1 Introduction This paper proves that various stateoftheart 128bit
Sequential Bounding Methods for Two-Stage Stochastic Programs
2014-10-17T23:59:59.000Z
Oct 17, 2014 ... We directly compare the quality of these solutions using a paired. Student-t test. 1 Introduction ...... [4] C. C. Huang, W. T. Ziemba, and A. Ben-Tal. Bounds on the ... [
Elastic breakup cross sections of well-bound nucleons
K. Wimmer; D. Bazin; A. Gade; J. A. Tostevin; T. Baugher; Z. Chajecki; D. Coupland; M. A. Famiano; T. K. Ghosh; G. F. Grinyer M. E. Howard; M. Kilburn; W. G. Lynch; B. Manning; K. Meierbachtol; P. Quarterman; A. Ratkiewicz; A. Sanetullaev; R. H. Showalter; S. R. Stroberg; M. B. Tsang; D. Weisshaar; J. Winkelbauer; R. Winkler; M. Youngs
2014-12-07T23:59:59.000Z
The 9Be(28Mg,27Na) one-proton removal reaction with a large proton separation energy of Sp(28Mg)=16.79 MeV is studied at intermediate beam energy. Coincidences of the bound 27Na residues with protons and other light charged particles are measured. These data are analyzed to determine the percentage contributions to the proton removal cross section from the elastic and inelastic nucleon removal mechanisms. These deduced contributions are compared with the eikonal reaction model predictions and with the previously measured data for reactions involving the re- moval of more weakly-bound protons from lighter nuclei. The role of transitions of the proton between different bound single-particle configurations upon the elastic breakup cross section is also quantified in this well-bound case. The measured and calculated elastic breakup fractions are found to be in good agreement.
Optimization Online - Lower Bounds on Complexity of Lyapunov ...
Amir Ali Ahmadi
2015-04-14T23:59:59.000Z
Apr 14, 2015 ... Lower Bounds on Complexity of Lyapunov Functions for Switched Linear Systems ... of the optimal product, generalizing a result of Lagarias and Wang. ... belonging to some of the most popular function classes in controls.
A Tight Lower Bound for the Adjacent Quadratic Assignment Problem
Borzou Rostami
2014-09-23T23:59:59.000Z
Sep 23, 2014 ... A Tight Lower Bound for the Adjacent Quadratic Assignment Problem ... The first is based on a ``flow'' formulation whose linear relaxation can be solved very efficiently ... Category 2: Integer Programming (0-1 Programming ).
Upper bounds on minimum distance of nonbinary quantum stabilizer codes
Kumar, Santosh
2005-11-01T23:59:59.000Z
The most popular class of quantum error correcting codes is stabilizer codes. Binary quantum stabilizer codes have been well studied, and Calderbank, Rains, Shor and Sloane (July 1998) have constructed a table of upper bounds on the minimum distance...
Unitarity bounds in the Higgs model including triplet fields...
Office of Scientific and Technical Information (OSTI)
the Higgs model including triplet fields with custodial symmetry We study bounds on Higgs-boson masses from perturbative unitarity in the Georgi-Machacek model, whose Higgs sector...
Zero Energy Bound States in Three--Particle Systems
Dmitry K. Gridnev
2010-01-22T23:59:59.000Z
Under certain restrictions on pair--potentials it is proved that the eigenvalues in the three--particle system are absorbed at zero energy threshold if there is no negative energy bound states and zero energy resonances in particle pairs.
Effective hydraulic conductivity of bounded, strongly heterogeneous porous media
Tartakovsky, Daniel M.
Effective hydraulic conductivity of bounded, strongly heterogeneous porous media Evangelos K of Arizona, Tucson Abstract. We develop analytical expressions for the effective hydraulic conductivity Ke boundaries. The log hydraulic conductivity Y forms a Gaussian, statistically homogeneous and anisotropic
Meta learning of bounds on the Bayes classifier error
Moon, Kevin R; Hero, Alfred O
2015-01-01T23:59:59.000Z
Meta learning uses information from base learners (e.g. classifiers or estimators) as well as information about the learning problem to improve upon the performance of a single base learner. For example, the Bayes error rate of a given feature space, if known, can be used to aid in choosing a classifier, as well as in feature selection and model selection for the base classifiers and the meta classifier. Recent work in the field of f-divergence functional estimation has led to the development of simple and rapidly converging estimators that can be used to estimate various bounds on the Bayes error. We estimate multiple bounds on the Bayes error using an estimator that applies meta learning to slowly converging plug-in estimators to obtain the parametric convergence rate. We compare the estimated bounds empirically on simulated data and then estimate the tighter bounds on features extracted from an image patch analysis of sunspot continuum and magnetogram images.
An equivalent form of Young's inequality with upper bound
E. Minguzzi
2008-08-05T23:59:59.000Z
Young's integral inequality is complemented with an upper bound to the remainder. The new inequality turns out to be equivalent to Young's inequality, and the cases in which the equality holds become particularly transparent in the new formulation.
Probabilistic Planning for Continuous Dynamic Systems under Bounded Risk
Williams, Brian Charles
This paper presents a model-based planner called the Probabilistic Sulu Planner or the p-Sulu Planner, which controls stochastic systems in a goal directed manner within user-specified risk bounds. The objective of the ...
Lower bounds for the earliness-tardiness scheduling problem on ...
2004-10-27T23:59:59.000Z
and show that the gap between upper and lower bounds is about 1%. ..... n jobs and the supply of source i is at most pi. There are T sinks with a demand.
A Level-3 Reformulation-Linearization Technique Based Bound for ...
Peter Hahn
2009-07-19T23:59:59.000Z
Electrical and Systems Engineering, The University of Pennsylvania. Philadelphia ... Mathematics and Computer Science, High Point University ... Vandenbussche (2006), the bundle method bound by Rendl and Sotirov (2007), and the Hahn-.
Improvable upper bounds to the piezoelectric polaron ground state energy
A. V. Soldatov
2014-12-31T23:59:59.000Z
It was shown that an infinite sequence of improving non-increasing upper bounds to the ground state energy (GSE) of a slow-moving piezoeletric polaron can be devised.
Tolman mass, generalized surface gravity, and entropy bounds
Abreu, Gabriel
2010-01-01T23:59:59.000Z
In any static spacetime the quasi-local Tolman mass contained within a volume can be reduced to a Gauss-like surface integral involving the flux of a suitably defined generalized surface gravity. By introducing some basic thermodynamics and invoking the Unruh effect one can then develop elementary bounds on the quasi-local entropy that are very similar in spirit to the holographic bound, and closely related to entanglement entropy.
Bound by Water : : Inquiry, Trauma, and Genre in Vietnamese American Literature
Hidle, Jade Tiffany
2014-01-01T23:59:59.000Z
CALIFORNIA, SAN DIEGO Bound by Water: Inquiry, Trauma, andTHE DISSERTATION Bound by Water: Inquiry, Trauma, and Genrethrough blood, but through water. Additionally, the mother
Thermodynamic and quantum bounds on nonlinear DC thermoelectric transport
Robert S. Whitney
2013-03-05T23:59:59.000Z
I consider the non-equilibrium DC transport of electrons through a quantum system with a thermoelectric response. This system may be any nanostructure or molecule modeled by the nonlinear scattering theory which includes Hartree-like electrostatic interactions exactly, and certain dynamic interaction effects (decoherence and relaxation) phenomenologically. This theory is believed to be a reasonable model when single-electron charging effects are negligible. I derive three fundamental bounds for such quantum systems coupled to multiple macroscopic reservoirs, one of which may be superconducting. These bounds affect nonlinear heating (such as Joule heating), work and entropy production. Two bounds correspond to the first law and second law of thermodynamics in classical physics. The third bound is quantum (wavelength dependent), and is as important as the thermodynamic ones in limiting the capabilities of mesoscopic heat-engines and refrigerators. The quantum bound also leads to Nernst's unattainability principle that the quantum system cannot cool a reservoir to absolute zero in a finite time, although it can get exponentially close.
Direct Sum Theorem for Bounded Round Quantum Communication Complexity
Dave Touchette
2014-09-15T23:59:59.000Z
We prove a direct sum theorem for bounded round entanglement-assisted quantum communication complexity. To do so, we use the fully quantum definition for information cost and complexity that we recently introduced, and use both the fact that information is a lower bound on the communication, and the fact that a direct sum property holds for quantum information complexity. We then give a protocol for compressing a single copy of a protocol down to its quantum information cost, up to terms depending on the number of rounds and the allowed increase in error. Two important tools to derive this protocol are a smooth conditional min-entropy bound for a one-shot quantum state redistribution protocol, and the quantum substate theorem of Jain, Radhakrishnan and Sen (FOCS'02) to transform this bound into a von Neumann conditional entropy bound. This result further establishes the newly introduced notions of quantum information cost and complexity as the correct quantum generalisations of the classical ones in the standard communication complexity setting. Finding such a quantum generalization of information complexity was one of the open problem recently raised by Braverman (STOC'12).
New upper bounds for nonbinary codes Dion Gijswijt , Alexander Schrijver y , Hajime Tanaka z
Schrijver, Alexander
- diagonalizing the Terwilliger algebra of the nonbinary Hamming scheme, the bound can be calculated in time bounds for binary codes. Keywords: codes, nonbinary codes, upper bounds, Delsarte bound, Terwilliger alge with the Terwilliger algebra [7] of H(n; q). In section 3 it is shown how the algebra A q;n can be used to obtain a new
Entropy bounds in terms of the w parameter
Abreu, Gabriel; Visser, Matt
2011-01-01T23:59:59.000Z
In a pair of recent articles [PRL 105 (2010) 041302 - arXiv:1005.1132; JHEP 1103 (2011) 056 - arXiv:1012.2867] two of the current authors have developed an entropy bound for equilibrium uncollapsed matter using only classical general relativity, basic thermodynamics, and the Unruh effect. An odd feature of that bound, S parameter to be <= 1. When equality holds, the entropy bound saturates at the value expected based on black hole thermodynamics. We also add some clarifying comments regarding the (net) positivity of the chemical potential. Overall, we find that even in the absence of any black hole region, we can nevertheless get arbitrarily close to the Bekenstein entropy.
Entropy bound for the photon gas in noncommutative spacetime
Nozari, K; Kamali, A Damavandi; Vakili, B
2015-01-01T23:59:59.000Z
Motivated by the doubly special relativity theories and noncommutative spacetime structures, thermodynamical properties of the photon gas in a phase space with compact spatial momentum space is studied. At the high temperature limit, the upper bounds for the internal energy and entropy are obtained which are determined by the size of the compact spatial momentum space. The maximum internal energy turns out to be of the order of the Planck energy and the entropy bound is then determined by the factor $\\big(V/l_{_{\\rm Pl}}^3\\big)$ through the relevant identification of the size of the momentum space with Planck scale. The entropy bound is very similar to the case of Bekenstein-Hawking entropy of black holes and suggests that thermodynamics of black holes may be deduced from a saturated state in the framework of a full quantum gravitational statistical mechanics.
Stable heteronuclear few-atom bound states in mixed dimensions
Yin Tao; Zhang Peng; Zhang Wei [Department of Physics, Renmin University of China, Beijing 100872 (China)
2011-11-15T23:59:59.000Z
We study few-body problems in mixed dimensions where two or three heavy atoms are trapped individually in parallel one-dimensional tubes or two-dimensional disks and a single light atom travels freely in three dimensions. Using the Born-Oppenheimer approximation, we find three- and four-body bound states for a broad parameter region. Specifically, the existence of trimer and tetramer states persists to the negative scattering length regime, where no two-body bound state is present. As pointed out by Y. Nishida in an earlier work [Phys. Rev. A 82, 011605(R) (2010)], these few-body bound states are stable against three-body recombination due to geometric separation. In addition, we find that the binding energy of the ground trimer and tetramer state reaches its maximum value when the scattering lengths are comparable to the separation between the low-dimensional traps.
Geometric lower bound for a quantum coherence measure
Diego Paiva Pires; Lucas C. Céleri; Diogo O. Soares-Pinto
2015-04-23T23:59:59.000Z
Nowadays, geometric tools are being used to treat a huge class of problems of quantum information science. By understanding the interplay between the geometry of the state space and information-theoretic quantities, it is possible to obtain less trivial and more robust physical constraints on quantum systems. In this sense, here we establish a geometric lower bound for the Wigner-Yanase skew information (WYSI), a well-known information theoretic quantity recently recognized as a proper quantum coherence measure. Starting from a mixed state evolving under unitary dynamics, while WYSI is a constant of motion, the lower bound indicates the rate of change of quantum statistical distinguishability between initial and final states. Our result shows that, since WYSI fits in the class of Petz metrics, this lower bound is the change rate of its respective geodesic distance on quantum state space. The geometric approach is advantageous because raises several physical interpretations of this inequality under the same theoretical umbrella.
Electron magneto-hydrodynamic waves bounded by magnetic bubble
Anitha, V. P.; Sharma, D.; Banerjee, S. P.; Mattoo, S. K. [Institute for Plasma Research, Bhat, Gandhinagar 382428 (India)
2012-08-15T23:59:59.000Z
The propagation of electron magneto-hydrodynamic (EMHD) waves is studied experimentally in a 3-dimensional region of low magnetic field surrounded by stronger magnetic field at its boundaries. We report observations where bounded left hand polarized Helicon like EMHD waves are excited, localized in the region of low magnetic field due to the boundary effects generated by growing strengths of the ambient magnetic field rather than a conducting or dielectric material boundary. An analytical model is developed to include the effects of radially nonuniform magnetic field in the wave propagation. The bounded solutions are compared with the experimentally obtained radial wave magnetic field profiles explaining the observed localized propagation of waves.
Bioavailability of sediment-bound contaminants to marine organisms
Brown, B. [Battelle/Marine Sciences Lab., Sequim, WA (United States); [Colby Coll., Waterville, ME (United States); Neff, J. [Battelle/Marine Sciences Lab., Sequim, WA (United States); [Battelle Ocean Sciences, Duxbury, MA (United States)
1993-09-01T23:59:59.000Z
The bioavailability of sediment-bound contaminants to marine organisms indicates that there exists a potential for transfer of these contaminants through marine food webs to commercial fisheries products consumed by humans. However, there has been relatively little effort to combine and synthesize data on chemical/biological interactions between benthic animals and seagrasses and the sediments in which they reside on the one hand, and on the chemistry of bioaccumulation on the other. This report provides a conceptual basis for an approach to bioavailability and biomagnification of sediment-bound contaminants that reviews biological and chemical approaches.
Dancing Volvox: Hydrodynamic Bound States of Swimming Algae
Knut Drescher; Kyriacos C. Leptos; Idan Tuval; Takuji Ishikawa; Timothy J. Pedley; Raymond E. Goldstein
2009-01-14T23:59:59.000Z
The spherical alga Volvox swims by means of flagella on thousands of surface somatic cells. This geometry and its large size make it a model organism for studying the fluid dynamics of multicellularity. Remarkably, when two nearby Volvox swim close to a solid surface, they attract one another and can form stable bound states in which they "waltz" or "minuet" around each other. A surface-mediated hydrodynamic attraction combined with lubrication forces between spinning, bottom-heavy Volvox explains the formation, stability and dynamics of the bound states. These phenomena are suggested to underlie observed clustering of Volvox at surfaces.
Tight bound on the coherent-state quantum key distribution with heterodyne detection
Lodewyck, Jerome [Thales Research and Technologies, RD 128, 91767 Palaiseau Cedex (France); Laboratoire Charles Fabry de l'Institut d'Optique, CNRS, UMR 8501, Campus Universitaire, Batiment 503, 91403 Orsay Cedex (France); Grangier, Philippe [Laboratoire Charles Fabry de l'Institut d'Optique, CNRS, UMR 8501, Campus Universitaire, Batiment 503, 91403 Orsay Cedex (France)
2007-08-15T23:59:59.000Z
We propose an upper bound for the eavesdropper's information in the direct and reverse reconciliated coherent states quantum key distribution protocols with heterodyne detection. This bound is derived by maximizing the leaked information over the symplectic group of transformations that spans every physical Gaussian attack on individual pulses. We exhibit four different attacks that reach this bound, which shows that this bound is tight. Finally, we compare the secret key rate obtained with this bound to the homodyne rate.
Recanati, Catherine
Introduction Group Sequencing The Best-Case Completion Time Lower Bounds Experiments Conclusion Best-Case Lower Bounds in a Group Sequence for the Job Shop Problem Guillaume Pinot Nasser Mebarki Pinot, Nasser Mebarki Best-Case Lower Bounds in a Group Sequence 1/24 #12;Introduction Group Sequencing
Lower bounding procedure for the Asymmetric Quadratic Traveling ...
2015-02-04T23:59:59.000Z
a lower bound is to linearize the quadratic terms xijxjk for all (i, j),(j, k) ? A ..... Consider any cycle C. Since column Cp is the selected column to enter the basis we ..... some kind of subtour elimination constraint, we restrict the search to find a
Distributed Network Monitoring with Bounded Link Utilization in IP Networks
Li, Li Erran
1 Distributed Network Monitoring with Bounded Link Utilization in IP Networks Li Li Center multiple pollers located at different points in the network. However, using distributed pollers could for Networking Research Lucent Bell Labs erranlli@dnrc.bell-labs.com Marina Thottan Center for Networking
Bounding Energy Consumption in Large-Scale MPI Programs
Funk, Shelby Hyatt
can execute parts of a program at a slower CPU speed to achieve energy savings with a relatively small savings is NP-complete, which has led to many heuristic energy- saving algorithms. To determine how closely these algorithms approach optimal savings, we developed a system that determines a bound on the en
A Calibration Bound for the M-Theory Fivebrane
O. Baerwald; N. D. Lambert; P. C. West
1999-08-13T23:59:59.000Z
We construct a covariant bound on the energy-momentum of the M-fivebrane which is saturated by all supersymmetric configurations. This leads to a generalised notion of a calibrated geometry for M-fivebranes when the worldvolume gauge field is non-zero. The generalisation relevant for Dp-branes is also given.
Bounded Conjunctive Queries Yang Cao1,2
Fan, Wenfei
of Edinburgh 2 RCBD and SKLSDE Lab, Beihang University 3 Facebook Inc. {Y.Cao-17@sms, wenfei@inf}.ed.ac.uk woty can reduce big D to a "small" DQ of a manageable size. Many real-life queries are actually (effectively) bounded. Example 1: Social networks, e.g., Facebook, allow us to tag a photo and show who
Error Bounds from Extra Precise Iterative Refinement James Demmel
Li, Xiaoye Sherry
now prevented its adoption in standard subroutine libraries like LAPACK: (1) There was no standard way a reliable error bound for the computed solution. The completion of the new BLAS Technical Forum Standard [5 Cooperative Agreement No. ACI-9619020; NSF Grant Nos. ACI-9813362 and CCF-0444486; the DOE Grant Nos. DE-FG03
Positron-molecule interactions: Resonant attachment, annihilation, and bound states
Gribakin, Gleb
, Northern Ireland, United Kingdom J. A. Young Jet Propulsion Laboratory, California Institute of Technology with the number of vibrational degrees of freedom, approximately as the fourth power of the number of atoms. Positron-molecule wave function 2563 D. Direct annihilation: Virtual and weakly bound positron states 2564
Plasma ionization by annularly bounded helicon waves Masayuki Yanoa
Walker, Mitchell
Air Force mission designs require electric propulsion devices to operate at high thrust-to-powerPlasma ionization by annularly bounded helicon waves Masayuki Yanoa and Mitchell L. R. Walkerb. In addition, the power deposition as a function of excitation frequency is derived. The solution is validated
Jacobi's bound and normal forms computations. A historical survey
Ollivier, FranÃ§ois
Jacobi's bound and normal forms computations. A historical survey F. Ollivier, LIX UMRS CNRS'evich Pankratiev. Abstract Jacobi is one of the most famous mathematicians of his century. His name is attached of Jacobi's results on ordinary differential equations and the available, published or unpublished material
Bounded, Periodic Relative Motion using Canonical Epicyclic Orbital Elements
Rowley, Clarence W.
Bounded, Periodic Relative Motion using Canonical Epicyclic Orbital Elements N. Jeremy Kasdin using canonical perturbation theory for studying relative motion trajectories and for finding simple motion [2, 3, 4, 5]. This has the advantage that Lagrange's planetary equations (LPEs) or Gauss
LOWER BOUNDS FOR THE POLYNOMIAL CALCULUS AND THE
Sgall, Jiri
) and fur ther studied by Buss et al. (1997) and Razborov (1996) . It generalizes the Nulstellensatz system (Buss et al. 1997) . Besides its naturalness as a proof system and connection to boundeddepth Frege allowed as lines. Such a proof system is discussed by Buss et al. 1997.) As a partial converse, Clegg et
PROOF COMPLEXITY IN ALGEBRAIC SYSTEMS AND BOUNDED DEPTH FREGE
Sgall, Jiri
PROOF COMPLEXITY IN ALGEBRAIC SYSTEMS AND BOUNDED DEPTH FREGE SYSTEMS WITH MODULAR COUNTING S. Buss (ø) := minfjßj : f(ß) = øg; #12; 2 S. Buss et al. where jßj is the length of the string ß to showing that NP 6= coNP . Despite extensive research (see the expository articles Buss (1995b) , Kraj
POINTWISE GREEN FUNCTION BOUNDS AND STABILITY OF COMBUSTION WAVES
Texier, Benjamin - Institut de Mathématiques de Jussieu, Université Paris 7
POINTWISE GREEN FUNCTION BOUNDS AND STABILITY OF COMBUSTION WAVES GREGORY LYNG, MOHAMMADREZA ROOFI for traveling wave solutions of an abstract viscous combustion model including both Majda's model and the full-wave) approximation. Notably, our results apply to combustion waves of any type: weak or strong, detonations or defla
CSP duality and trees of bounded pathwidth Catarina Carvalhoa
Krokhin, Andrei
CSP duality and trees of bounded pathwidth Catarina Carvalhoa , V´ictor Dalmaub , Andrei Krokhin satisfaction problem (CSP) provides a framework in which it is possible to express, in a natural way, many.g., [11, 18]) that the CSP can be cast as the following fundamental problem: given two finite relational
CSP duality and trees of bounded pathwidth Catarina Carvalhoa
Krokhin, Andrei
CSP duality and trees of bounded pathwidth Catarina Carvalhoa , V´ictor Dalmaub , Andrei Krokhin problem (CSP) provides a framework in which it is possible to express, in a natural way, many.g., [10, 14]) that the CSP can be cast as the following fundamental problem: given two finite relational
Density functional theory for self-bound systems
Nir Barnea
2007-11-06T23:59:59.000Z
The density functional theory is extended to account for self-bound systems. To this end the Hohenberg-Kohn theorem is formulated for the intrinsic density and a Kohn-Sham like procedure for an $N$--body system is derived using the adiabatic approximation to account for the center of mass motion.
Zero Energy Bound States in Many--Particle Systems
Dmitry K. Gridnev
2011-12-01T23:59:59.000Z
It is proved that the eigenvalues in the N--particle system are absorbed at zero energy threshold, if none of the subsystems has a bound state with $E \\leq 0$ and none of the particle pairs has a zero energy resonance. The pair potentials are allowed to take both signs.
New Lower Bounds for Online k-Server Routing Problems
Krumke, Sven O.
New Lower Bounds for Online k-Server Routing Problems Irene Fink a Sven O. Krumke a Stephan, 67653 Kaiserslautern, Germany. {fink,krumke,westphal}@mathematik.uni-kl.de Abstract In a k-server routing problem k 1 servers move in a metric space in order to visit specified points or carry objects
Bound entanglement in the magic simplex of two--qutrits
Reinhold A. Bertlmann; Philipp Krammer
2008-06-20T23:59:59.000Z
We investigate the entanglement properties of a three--parameter family of states that are part of the magic simplex of two qutrits, which is a simplex of states that are mixtures of maximally entangled two--qutrit Bell states. Using entanglement witnesses we reveal large regions of bound entangled and separable states.
Optimal Bounds for Online Page Migration with Generalized Migration Costs
Schmid, Stefan
Optimal Bounds for Online Page Migration with Generalized Migration Costs Johannes Schneider1 to a generalized version of the classic page migration problem where migration costs are not necessarily given by the migration distance only, but may depend on prior migrations, or on the available bandwidth along
Minimizing Energy for Wireless Web Access with Bounded Slowdown
-saving mode (PSM), a "static" protocol, can harm performance by increasing fast round trip times (RTTs) to 100- Slowdown (BSD) protocol, a PSM that dynamically adapts to network activity. BSD is an optimal solution that show that, compared to a static PSM, the Bounded-Slowdown protocol reduces average Web page re- trieval
A CHARACTERIZATION OF BOUNDED SYMMETRIC DOMAINS OF TYPE IV
Geatti, Laura
A CHARACTERIZATION OF BOUNDED SYMMETRIC DOMAINS OF TYPE IV L. GEATTI, A. IANNUZZI, AND J.-J. LOEB with the compact-open topology is a topological group. We say that X is characterized by its automorphism group to Aut(X) is biholomorphic to X. Most manifolds are not characterized by their automorphism group. For in
A Hierarchy of Bounds on Accessible Information and Informational Power
Michele Dall'Arno
2015-04-17T23:59:59.000Z
Quantum theory imposes fundamental limitations to the amount of information that can be carried by any quantum system. On the one hand, Holevo bound rules out the possibility to encode more information in a quantum system than in its classical counterpart, comprised of perfectly distinguishable states. On the other hand, when states are uniformly distributed in the state space, the so-called subentropy lower bound is saturated. How uniform quantum systems are can be naturally quantified by characterizing them as $t$-designs, with $t = \\infty$ corresponding to the uniform distribution. Here we show the existence of a trade-off between the uniformity of a quantum system and the amount of information it can carry. To this aim, we derive a hierarchy of informational bounds as a function of $t$ and prove their tightness for qubits and qutrits. By deriving asymptotic formulae for large dimensions, we also show that the statistics generated by any $t$-design with $t > 1$ contains no more than a single bit of information, and this amount decreases with $t$. Holevo and subentropy bounds are recovered as particular cases for $t = 1$ and $t = \\infty$, respectively.
Lower Bounds on Testing Membership to a Polyhedron by
Grigoriev, Dima
Email:imilar question was ope* *n for algebraic decision dima@cse.psu.edu. Supported in part by the Volkswagen and ECUS030, and by the Volkswagen-Stiftung.oEmail:btaining lower bounds f* *or the complexity of test
Particle physics implications of the WMAP neutrino mass bound
G. Bhattacharyya; H. Päs; L. Song; T. J. Weiler
2003-04-25T23:59:59.000Z
The recently published cosmological bound on the absolute neutrino masses obtained from the Wilkinson Microwave Anisotropy Probe (WMAP) data has important consequences for neutrino experiments and models. Taken at face value, the new bound excludes the determination of the absolute neutrino mass in the KATRIN experiment and disfavors a neutrino oscillation interpretation of the LSND experiment. Combined with the KamLAND and Super-K data, the WMAP bound defines an accessible range for the neutrinoless double beta decay amplitude. The bound also impacts the Z-burst annihilation mechanism for resonant generation of extreme-energy cosmic rays on the cosmic neutrino background in two ways: it constrains the local overdensity of neutrino dark matter which is not helpful, but it also limits the resonant energy to a favorable range. In R-parity violating SUSY models neutrino masses are generated by trilinear and bilinear lepton number violating couplings. The WMAP result improves the constraints on these couplings over their existing values by an order of magnitude.
Two heavy fermions bound via Higgs boson exchange
Victor Flambaum; Michael Kuchiev
2011-12-11T23:59:59.000Z
A system of two heavy fermions, leptons or quarks of the fourth generation, which are bound together via the Higgs boson exchange is studied. The conventional Yukawa-type interaction produced by this exchange is accompanied by several important corrections. We derived the Hamiltonian, which describes the correction arising from the retardation (compare the Breit correction in QED); we also calculated the relativistic and radiative corrections. The Higgs-induced bound state appears for the fermion mass m>m_{cr} \\approx 500 GeV. When the long-range Coulomb interaction or the gluon exchange are included, the bound states exist for any mass, but the Higgs exchange drastically increases the binding energy of these states when m is approaching m_{cr}. In the region m>m_{cr} the gluon exchange gives a sizable correction to the Higgs induced binding energy. This correction greatly exceeds typical binding energies in the states produced via the gluon exchange only. The possibility of detection of the considered bound states at LHC is discussed.
Calculation of size for bound-state constituents
Stanislaw D. Glazek
2014-06-01T23:59:59.000Z
Elements are given of a calculation that identifies the size of a proton in the Schroedinger equation for lepton-proton bound states, using the renormalization group procedure for effective particles (RGPEP) in quantum field theory, executed only up to the second order of expansion in powers of the coupling constant. Already in this crude approximation, the extraction of size of a proton from bound-state observables is found to depend on the lepton mass, so that the smaller the lepton mass the larger the proton size extracted from the same observable bound-state energy splitting. In comparison of Hydrogen and muon-proton bound-state dynamics, the crude calculation suggests that the difference between extracted proton sizes in these two cases can be a few percent. Such values would match the order of magnitude of currently discussed proton-size differences in leptonic atoms. Calculations using the RGPEP of higher order than second are required for a precise interpretation of the energy splittings in terms of the proton size in the Schroedinger equation. Such calculations should resolve the conceptual discrepancy between two conditions: that the renormalization group scale required for high accuracy calculations based on the Schroedinger equation is much smaller than the proton mass (on the order of a root of the product of reduced and average masses of constituents) and that the energy splittings due to the physical proton size can be interpreted ignoring corrections due to the effective nature of constituents in the Schr\\"odinger equation.
Bounds On Contention Management Algorithms Johannes Schneider1
Bounds On Contention Management Algorithms Johannes Schneider1 , Roger Wattenhofer1 Computer algorithms for contention management in transactional memory, the deterministic algorithm CommitRounds and the randomized algo- rithm RandomizedRounds. Our randomized algorithm is efficient: in some noto- rious problem
How Efficient Can We Be?: Bounds on Algorithm Energy Consumption
California at Irvine, University of
How Efficient Can We Be?: Bounds on Algorithm Energy Consumption Andrew Gearhart #12;Relation design use feedback to "cotune" compute kernel energy efficiency #12;Previous Work: Communication Lower-optimal" algorithms #12;Communication is energy inefficient! · On-chip/Off-chip gap isn't going to improve much Data
Model-Independent Arbitrage Bounds on American Put
Cox, Alexander
in the real world. Alternatively, we could use the prices of some liquidly traded options to deduce noModel-Independent Arbitrage Bounds on American Put Options submitted by Christoph Hoeggerl are interested in the pricing of American put options using the latter approach. To this end, we will assume
Comments on: Asymptotic Bound for Heat-Bath Algorithmic Cooling
Nayeli Azucena Rodriguez-Briones; Jun Li; Xinhua Peng; Tal Mor; Yossi Weinstein; Raymond Laflamme
2015-06-05T23:59:59.000Z
In a recent paper, PRL 114 100404, 2015, Raeisi and Mosca studied Heat-Bath Algorithmic Cooling (HBAC) and claimed to have established "the fundamental limit of cooling for {\\it all} HBAC techniques" (italics are ours). We show that this claim is incorrect by giving a counterexample of an HBAC algorithm that provides better cooling bound for two qubits.
Lieb-Thirring Bounds for Interacting Bose Gases
Douglas Lundholm; Fabian Portmann; Jan Philip Solovej
2015-02-02T23:59:59.000Z
We study interacting Bose gases and prove lower bounds for the kinetic plus interaction energy of a many-body wave function in terms of its particle density. These general estimates are then applied to various types of interactions, including hard sphere (in 3D) and hard disk (in 2D) as well as a general class of homogeneous potentials.
TRANSFORMING USF'S TAMPA CAMPUS FEBRUARY 26, 2013
Meyers, Steven D.
; Sun Dome Goes Green! Facili'es Management · The building is projected to reach overall building water usage by 40%. · Efficient landscaping and irriga'on systems; Facili'es Management #12; LIBRARY 2nd FLOOR SMART LAB
TRANSFORMING USF'S TAMPA CAMPUS FALL 2012 PRESENTATION
Meyers, Steven D.
% of original walls, floors and roof systems were re-used in the renova'on. · New high-efficiency air condi'oning and other systems will reduce overall energy water usage by 40%. · Efficient landscaping and irriga'on systems will cut arena
Proton lifetime bounds from chirally symmetric lattice QCD
Y. Aoki; P. Boyle; P. Cooney; L. Del Debbio; R. Kenway; C. M. Maynard; A. Soni; R. Tweedie
2008-06-05T23:59:59.000Z
We present results for the matrix elements relevant for proton decay in Grand Unified Theories (GUTs). The calculation is performed at a fixed lattice spacing a^{-1}=1.73(3) GeV using 2+1 flavors of domain wall fermions on lattices of size 16^3\\times32 and 24^3\\times64 with a fifth dimension of length 16. We use the indirect method which relies on an effective field theory description of proton decay, where we need to estimate the low energy constants, \\alpha = -0.0112(25) GeV^3 and \\beta = 0.0120(26) GeV^3. We relate these low energy constants to the proton decay matrix elements using leading order chiral perturbation theory. These can then be combined with experimental bounds on the proton lifetime to bound parameters of individual GUTs.
An improved cosmological bound on the thermal axion mass
Alessandro Melchiorri; Olga Mena; Anze Slosar
2007-05-18T23:59:59.000Z
Relic thermal axions could play the role of an extra hot dark matter component in cosmological structure formation theories. By combining the most recent observational data we improve previous cosmological bounds on the axion mass m_a in the so-called hadronic axion window. We obtain a limit on the axion mass m_a axion mass. If neutrino masses belong to an inverted hierarchy scheme, for example, the above constraint is improved to m_a < 0.38eV at the 95% c.l. (m_a < 0.67eV at the 99% c.l.). Future data from experiments as CAST will provide a direct test of the cosmological bound.
Free Energies of Dilute Bose gases: upper bound
Jun Yin
2010-12-19T23:59:59.000Z
We derive a upper bound on the free energy of a Bose gas system at density $\\rho$ and temperature $T$. In combination with the lower bound derived previously by Seiringer \\cite{RS1}, our result proves that in the low density limit, i.e., when $a^3\\rho\\ll 1$, where $a$ denotes the scattering length of the pair-interaction potential, the leading term of $\\Delta f$ the free energy difference per volume between interacting and ideal Bose gases is equal to $4\\pi a (2\\rho^2-[\\rho-\\rhoc]^2_+)$. Here, $\\rhoc(T)$ denotes the critical density for Bose-Einstein condensation (for the ideal gas), and $[\\cdot ]_+$ $=$ $\\max\\{\\cdot, 0\\}$ denotes the positive part.
Upper Bound on Fidelity of Classical Sagnac Gyroscope
Thomas B. Bahder
2011-01-24T23:59:59.000Z
Numerous quantum mechanical schemes have been proposed that are intended to improve the sensitivity to rotation provided by the classical Sagnac effect in gyroscopes. A general metric is needed that can compare the performance of the new quantum systems with the classical systems. The fidelity (Shannon mutual information between the measurement and the rotation rate) is proposed as a metric that is capable of this comparison. A theoretical upper bound is derived for the fidelity of an ideal classical Sagnac gyroscope. This upper bound for the classical Sagnac gyroscope should be used as a benchmark to compare the performance of proposed enhanced classical and quantum rotation sensors. In fact, the fidelity is general enough to compare the quality of two different apparatuses (two different experiments) that attempt to measure the same quantity.
Directional Dark Matter Detection Beyond the Neutrino Bound
Philipp Grothaus; Malcolm Fairbairn; Jocelyn Monroe
2014-09-30T23:59:59.000Z
Coherent scattering of solar, atmospheric and diffuse supernovae neutrinos creates an irreducible background for direct dark matter experiments with sensitivities to WIMP-nucleon spin-independent scattering cross-sections of 10^(-46)-10^(-48) cm^2, depending on the WIMP mass. Even if one could eliminate all other backgrounds, this "neutrino floor" will limit future experiments with projected sensitivities to cross-sections as small as 10^(-48) cm^2. Direction-sensitive detectors have the potential to study dark matter beyond the neutrino bound by fitting event distributions in multiple dimensions: recoil kinetic energy, recoil track angle with respect to the sun, and event time. This work quantitatively explores the impact of direction-sensitivity on the neutrino bound in dark matter direct detection.
D-brane Bound States and the Generalised ADHM Construction
N. D. Lambert
1998-01-08T23:59:59.000Z
We discuss the sigma model description of a D-string bound to k D-fivebranes in type I string theory. The effective theory is an (0,4) supersymmetric hyper-Kahler with torsion sigma model on the moduli space of Sp(k) instantons on R^4. Upon toroidal compactification to five dimensions the model is related to the type II picture where the target space is a symmetric product of K3's.
Bounding the greybody factors for Schwarzschild black holes
Boonserm, Petarpa
2008-01-01T23:59:59.000Z
Greybody factors in black hole physics modify the naive Planckian spectrum that is predicted for Hawking radiation when working in the limit of geometrical optics. We consider the Schwarzschild geometry in (3+1) dimensions, and analyze the Regge-Wheeler equation for arbitrary particle spin S and wave-mode angular momentum L, deriving rigourous bounds on the greybody factors as a function of S, L, wave frequency (omega), and the black hole mass, m.
Bound states of a more general exponential screened Coulomb potential
Sameer M. Ikhdair; Ramazan Sever
2006-04-11T23:59:59.000Z
An alternative approximation scheme has been used in solving the Schrodinger equation to the more general case of exponential screened Coulomb potential, V(r)=-(a/r)\\[1+(1+br)e^{-2br}]. The bound state energies of the 1s, $2s, and 3s-states, together with the ground state wave function are obtained analytically upto the second perturbation term.
Bounds on Information and the Security of Quantum Cryptography
E. Biahm; T. Mor
1997-01-08T23:59:59.000Z
Strong attacks against quantum key distribution use quantum memories and quantum gates to attack directly the final key. In this paper we extend a novel security result recently obtained, to demonstrate proofs of security against a wide class of such attacks. To reach this goal we calculate information-dependent reduced density matrices, we study the geometry of quantum mixed states, and we find bounds on the information leaked to an eavesdropper. Our result suggests that quantum cryptography is ultimately secure.
Optimal Distributed P2P Streaming under Node Degree Bounds
Zhang, Shaoquan; Chen, Minghua
2010-01-01T23:59:59.000Z
We study the problem of maximizing the broadcast rate in peer-to-peer (P2P) systems under \\emph{node degree bounds}, i.e., the number of neighbors a node can simultaneously connect to is upper-bounded. The problem is critical for supporting high-quality video streaming in P2P systems, and is challenging due to its combinatorial nature. In this paper, we address this problem by providing the first distributed solution that achieves near-optimal broadcast rate under arbitrary node degree bounds, and over arbitrary overlay graph. It runs on individual nodes and utilizes only the measurement from their one-hop neighbors, making the solution easy to implement and adaptable to peer churn and network dynamics. Our solution consists of two distributed algorithms proposed in this paper that can be of independent interests: a network-coding based broadcasting algorithm that optimizes the broadcast rate given a topology, and a Markov-chain guided topology hopping algorithm that optimizes the topology. Our distributed br...
A simplex of bound entangled multipartite qubit states
B. C. Hiesmayr; F. Hipp; M. Huber; Ph. Krammer; Ch. Spengler
2008-08-19T23:59:59.000Z
We construct a simplex for multipartite qubit states of even number n of qubits, which has the same geometry concerning separability, mixedness, kind of entanglement, amount of entanglement and nonlocality as the bipartite qubit states. We derive the entanglement of the class of states which can be described by only three real parameters with the help of a multipartite measure for all discrete systems. We prove that the bounds on this measure are optimal for the whole class of states and that it reveals that the states possess only n-partite entanglement and not e.g. bipartite entanglement. We then show that this n-partite entanglement can be increased by stochastic local operations and classical communication to the purest maximal entangled states. However, pure n-partite entanglement cannot be distilled, consequently all entangled states in the simplex are n-partite bound entangled. We study also Bell inequalities and find the same geometry as for bipartite qubits. Moreover, we show how the (hidden) nonlocality for all n-partite bound entangled states can be revealed.
Improved cosmological bound on the thermal axion mass
Melchiorri, Alessandro; Mena, Olga [INFN Sez. di Roma, Dipartimento di Fisica, Universita di Roma 'La Sapienza', P.le A. Moro, 5, I-00185 Rome (Italy); Slosar, Anze [Astrophysics, Denys Wilkinson Building, University of Oxford, Keble Road, OX3RH1, Oxford (United Kingdom); Faculty of Mathematics and Physics, University of Ljubljana (Slovenia)
2007-08-15T23:59:59.000Z
Relic thermal axions could play the role of an extra hot dark matter component in cosmological structure formation theories. By combining the most recent observational data we improve previous cosmological bounds on the axion mass m{sub a} in the so-called hadronic axion window. We obtain a limit on the axion mass m{sub a}<0.42 eV at the 95% C.L. (m{sub a}<0.72 eV at the 99% C.L.). A novel aspect of the analysis presented here is the inclusion of massive neutrinos and how they may affect the bound on the axion mass. If neutrino masses belong to an inverted hierarchy scheme, for example, the above constraint is improved to m{sub a}<0.38 eV at the 95% C.L. (m{sub a}<0.67 eV at the 99% C.L.). Future data from experiments as CAST will provide a direct test of the cosmological bound.
Bound states of the Dirac equation on Kerr spacetime
Dolan, Sam R
2015-01-01T23:59:59.000Z
We formulate the Dirac equation for a massive neutral spin-half particle on a rotating black hole spacetime, and we consider its (quasi)bound states: gravitationally-trapped modes which are regular across the future event horizon. These bound states decay with time, due to the absence of superradiance in the (single-particle) Dirac field. We introduce a practical method for computing the spectrum of energy levels and decay rates, and we compare our numerical results with known asymptotic results in the small-$M \\mu$ and large-$M \\mu$ regimes. By applying perturbation theory in a horizon-penetrating coordinate system, we compute the `fine structure' of the energy spectrum, and show good agreement with numerical results. We obtain data for a hyperfine splitting due to black hole rotation. We evolve generic initial data in the time domain, and show how Dirac bound states appear as spectral lines in the power spectra. In the rapidly-rotating regime, we find that the decay of low-frequency co-rotating modes is sup...
General schedulability bound analysis and its applications in real-time systems
Wu, Jianjia
2007-09-17T23:59:59.000Z
schedulability bounds for arbitrary static priority schedulers, weighted round robin schedulers, and timed token ring schedulers. Existing utilization bounds for these schedulers are obtained from the closed-form formula by direct assignment of proper parameters...
APRIORI BOUNDS FOR REACTION-DIFFUSION SYSTEMS ARISING IN CHEMICAL JEFF S. MCGOUGH AND KYLE RILEY
McGough, Jeff S.
APRIORI BOUNDS FOR REACTION-DIFFUSION SYSTEMS ARISING IN CHEMICAL KINETICS JEFF S. MCGOUGH AND KYLE RILEY Abstract. The authors investigate reaction diffusion equations which arise in chemical kinetics diffusion equations, gradient bounds, chemical kinetics, autocatalytic reactions AMS subject classifications
Yet Another Secure Distance-Bounding Protocol Ventzislav Nikov and Marc Vauclair
International Association for Cryptologic Research (IACR)
Yet Another Secure Distance-Bounding Protocol Ventzislav Nikov and Marc Vauclair NXP Semiconductors, Leuven, Belgium, ventzislav.nikov@nxp.com, marc.vauclair@nxp.com Abstract. Distance-bounding protocols
A Lower Bound for the Quadratic Assignment Problem Based on a Level-2 Reformulation-Linearization
Terri Anne Johnson, Clemson University Monique Guignard-Spielberg, The University of Pennsylvania-and-bound are the most successful, but the lack of sharp lower bounds in these algorithms has been one of the major
New bounding techniques for channel codes over quasi-static fading channels
Hu, Jingyu
2005-04-01T23:59:59.000Z
for two classes of convolutional codes including turbo codes. Consequently, they are combined with the classical Union-Chernoff bound to produce new performance upper bounds for simple convolutional and turbo codes over single-input single-output (SISO...
Approximation Hardness of TSP with Bounded Metrics Lars Engebretsen? Marek Karpinski??
Eckmiller, Rolf
|note that such a distance function always satis es the triangle inequality|within that constant. This lower bound
Guruswami, Venkatesan
Combinatorial Bounds for List Decoding Venkatesan Guruswami #3; Johan HÅ¡astad y Madhu Sudan z David
A note on a result of Buss concerning bounded theories and the collection scheme
Edmundo, MÃ¡rio Jorge
A note on a result of Buss concerning bounded theories and the collection scheme Fernando Ferreira Abstract Samuel Buss showed that, under certain circunstances, adding the collection scheme for bounded of Samuel Buss (a good reference for bounded theories is Part C of [HP93]). In [B87] Buss presents two
New code upper bounds from the Terwilliger algebra and semidefinite programming
Schrijver, Alexander
1 New code upper bounds from the Terwilliger algebra and semidefinite programming Alexander n and minimum distance at least d. It is based on blockÂdiagonalising the Terwilliger algeÂ bra, Terwilliger algebra, upper bounds. I. DESCRIPTION OF THE METHOD We present a new upper bound on A(n, d
New code upper bounds from the Terwilliger algebra and semidefinite programming
Schrijver, Alexander
1 New code upper bounds from the Terwilliger algebra and semidefinite programming Alexander and minimum distance at least d. It is based on block-diagonalising the Terwilliger alge- bra of the Hamming, Terwilliger algebra, upper bounds. I. DESCRIPTION OF THE METHOD We present a new upper bound on A(n, d
Chen, Dong; Gara, Alana; Heidelberger, Philip; Kumar, Sameer; Ohmacht, Martin; Steinmacher-Burow, Burkhard; Wisniewski, Robert
2014-09-16T23:59:59.000Z
Implementation primitives for concurrent array-based stacks, queues, double-ended queues (deques) and wrapped deques are provided. In one aspect, each element of the stack, queue, deque or wrapped deque data structure has its own ticket lock, allowing multiple threads to concurrently use multiple elements of the data structure and thus achieving high performance. In another aspect, new synchronization primitives FetchAndIncrementBounded (Counter, Bound) and FetchAndDecrementBounded (Counter, Bound) are implemented. These primitives can be implemented in hardware and thus promise a very fast throughput for queues, stacks and double-ended queues.
Groups generated by bounded automata and their schreier graphs
Bondarenko, Ievgen
2009-05-15T23:59:59.000Z
by Bounded Automata and Their Schreier Graphs. (December 2007) Ievgen Bondarenko, B.S., National Taras Shevchenko University of Kyiv, Ukraine; M.S., National Taras Shevchenko University of Kyiv, Ukraine Chair of Advisory Committee: Dr. Rostislav Grigorchuk... maps In Chapter III we study spectral properties and iterations of piecewise linear maps of the form fK(v) = min A?K Av, v?RN, (1.1) where K is a finite set of nonnegative square matrices of fixed dimension and by ?min? we mean component-wise minimum...
Groups generated by bounded automata and their schreier graphs
Bondarenko, Ievgen
2008-10-10T23:59:59.000Z
by Bounded Automata and Their Schreier Graphs. (December 2007) Ievgen Bondarenko, B.S., National Taras Shevchenko University of Kyiv, Ukraine; M.S., National Taras Shevchenko University of Kyiv, Ukraine Chair of Advisory Committee: Dr. Rostislav Grigorchuk... maps In Chapter III we study spectral properties and iterations of piecewise linear maps of the form fK(v) = min A?K Av, v?RN, (1.1) where K is a finite set of nonnegative square matrices of fixed dimension and by “min” we mean component-wise minimum...
Cosmological Bounds on an Invisibly Decaying Higgs Boson
O. Bertolami; M. C. Bento; R. Rosenfeld
2001-11-21T23:59:59.000Z
We derive bounds on the Higgs boson coupling $g^{\\prime}$ to a stable light scalar which is regarded as a collisional dark matter candidate. We study the behaviour of this scalar, that we refer to as phion ($\\phi$), in the early Universe for different ranges of its mass. We find that a phion in the mass range of $100 \\mev$ is excluded, while if its mass is about $1 \\gev$, a rather large coupling constant, $g^{\\prime} \\gsim 2$, and $m_h \\lsim 130 \\gev$ are required in order to avoid overabundance. In the latter case, the invisible decay mode of the Higgs boson is dominant.
Emergent Soft Monopole Modes in Weakly-Bound Deformed Nuclei
J. C. Pei; M. Kortelainen; Y. N. Zhang; F. R. Xu
2014-11-13T23:59:59.000Z
Based on the Hartree-Fock-Bogoliubov solutions in large deformed coordinate spaces, the finite amplitude method for quasiparticle random phase approximation (FAM-QRPA) has been implemented, providing a suitable approach to probe collective excitations of weakly-bound nuclei embedded in the continuum. The monopole excitation modes in Magnesium isotopes up to the neutron drip line have been studied with the FAM-QRPA framework on both the coordinate-space and harmonic oscillator basis methods. Enhanced soft monopole strengths and collectivity as a result of weak-binding effects have been unambiguously demonstrated.
Bound Neutrons Pave Way to Free Ones | Jefferson Lab
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:5 TablesExports(Journal Article)41cloth Documentation DataDepartment of EnergyOn-Farm1 of 62.1 Performance Tools & APIsBottom: TheBound Neutrons Pave
Radiative corrections in fermion bags bound by Higgs boson exchange
M. Yu. Kuchiev; V. V. Flambaum
2011-01-16T23:59:59.000Z
Radiative corrections for several heavy fermions bound together via the Higgs boson exchange are studied. The fermion bags considered include 12, or fewer, fermions occupying the lowest S_{1/2} shell. It is shown that for `moderately heavy' fermions with masses 0.4< m c^2< 1 TeV the radiative corrections are small, 10^{-2}, and have an attractive nature. Therefore they do not put existence of the fermion bag in doubt. This proves that these fermion bags can exist in nature.
Bounds to binding energies from the concavity of thermodynamical functions
B. K. Jennings; B. R. Barrett; B. G. Giraud
2007-08-22T23:59:59.000Z
Sequences of experimental ground-state energies are mapped onto concave patterns cured from convexities due to pairing and/or shell effects. The same patterns, completed by a list of excitation energies, can be used to give numerical estimates of the grand potential $\\Omega(\\beta,\\mu)$ for a mixture of nuclei at low or moderate temperatures $T=\\beta^{-1}$ and at many chemical potentials $\\mu.$ The average nucleon number $(\\beta,\\mu)$ then becomes a continuous variable, allowing extrapolations towards nuclear masses closer to drip lines. We study the possible concavity of several thermodynamical functions, such as the free energy and the average energy, as functions of $.$ Concavity, when present in such functions, allows trivial interpolations and extrapolations providing upper and lower bounds, respectively, to binding energies. Such bounds define an error bar for the prediction of binding energies. An extrapolation scheme for such concave functions is tested. We conclude with numerical estimates of the binding energies of a few nuclei closer to drip lines.
Upper bound on the cutoff in the Standard Model
Veselov, A I
2009-01-01T23:59:59.000Z
The main objective of this presentation is to point out that the Upper bound on the cutoff in lattice Electroweak theory is still unknown. The consideration of the continuum theory is based on the perturbation expansion around trivial vacuum. The internal structure of the lattice Weinberg - Salam model may appear to be more complicated especially in the region of the phase diagram close to the phase transition between the physical Higgs phase and the unphysical symmetric phase of the lattice model, where the continuum physics is to be approached. We represent the results of our numerical investigation of the quenched model at infinite bare scalar self coupling $\\lambda$. These results demonstrate that at $\\lambda = \\infty$ the upper bound on the cutoff is around $\\frac{\\pi}{a} = 1.4$ Tev. The preliminary results for finite $\\lambda$ are also presented. Basing on these results we cannot yet make a definite conclusion on the maximal value of the cutoff admitted in the lattice model, although we have found that ...
Bounding the Hubble flow in terms of the w parameter
Cattoen, Celine
2008-01-01T23:59:59.000Z
The last decade has seen increasing efforts to circumscribe and bound the cosmological Hubble flow in terms of model-independent constraints on the cosmological fluid - such as, for instance, the classical energy conditions of general relativity. Quite a bit can certainly be said in this regard, but much more refined bounds can be obtained by placing more precise constraints (either theoretical or observational) on the cosmological fluid. In particular, the use of the w-parameter (w=p/rho) has become increasingly common as a surrogate for trying to say something about the cosmological equation of state. Herein we explore the extent to which a constraint on the w-parameter leads to useful and nontrivial constraints on the Hubble flow, in terms of constraints on density rho(z), Hubble parameter H(z), density parameter Omega(z), cosmological distances d(z), and lookback time T(z). In contrast to other partial results in the literature, we carry out the computations for arbitrary values of the space curvature k i...
Bounding the Hubble flow in terms of the w parameter
Celine Cattoen; Matt Visser
2008-06-13T23:59:59.000Z
The last decade has seen increasing efforts to circumscribe and bound the cosmological Hubble flow in terms of model-independent constraints on the cosmological fluid - such as, for instance, the classical energy conditions of general relativity. Quite a bit can certainly be said in this regard, but much more refined bounds can be obtained by placing more precise constraints (either theoretical or observational) on the cosmological fluid. In particular, the use of the w-parameter (w=p/rho) has become increasingly common as a surrogate for trying to say something about the cosmological equation of state. Herein we explore the extent to which a constraint on the w-parameter leads to useful and nontrivial constraints on the Hubble flow, in terms of constraints on density rho(z), Hubble parameter H(z), density parameter Omega(z), cosmological distances d(z), and lookback time T(z). In contrast to other partial results in the literature, we carry out the computations for arbitrary values of the space curvature k in [-1,0,+1], equivalently for arbitrary Omega_0 <= 1.
Process for releasing ammonia bound in coal water
Laufhutte, D.; Weber, H.
1981-11-24T23:59:59.000Z
A process for releasing ammonia which is bound in coal water using a pre-desulfurization plant having ammonia and hydrogen sulfide scrubbers through which crude coking plant gas is passed comprises circulating the crude coke oven gases through the hydrogen sulfide scrubber and the ammonia scrubber in succession, directing the coal water first through the ammonia scrubber while the crude coking plant gases are being also circulated therethrough after passing it first through the hydrogen sulfide scrubber. An alkali solution is also circulated through the ammonia scrubber to enrich the solution with acid components and to liberate ammonia bound in the coal water directing the coal water which has been enriched from the ammonia scrubber into the hydrogen sulfide scrubber. The process is characterized by the fact that the alkali solution which has first served for the hydrogen sulfide scrubber is added to the ammonia hydrogen sulfide scrubber. 80 to 90% of the total alkali solution is charged to the hydrogen sulfide after-washery and then on the hydrogen sulfide pre-washery and the rest is charged to an ammonia expulsion apparatus.
Quasi-bound states in periodically driven scattering
H. Landa
2015-06-29T23:59:59.000Z
We present an approach for obtaining eigenfunctions of periodically driven time-dependent Hamiltonians. Assuming an approximate scale separation between two spatial regions where different potentials dominate, we derive an explicit expansion for scattering problems with mixed cylindrical and spherical symmetry, by matching wavefunctions of a periodic linear drive in the exterior region to solutions of an arbitrary interior potential expanded in spherical waves. Using this method we study quasi-bound states of a square-well potential in three dimensions subject to an axial driving force. In the nonperturbative regime we show how eigenfunctions develop an asymptotic dressing of different partial waves, accompanied by large periodic oscillations in the angular momentum and a nonmonotonous dependence of the decay rate on the drive strength. We extend these results to the strong driving regime near a resonant intersection of the quasi-energy surfaces of two bound states of different symmetry. Our approach can be applied to general quantum scattering problems of particles subject to periodic fields.
Randomized Algorithms and Lower Bounds for Quantum Simulation
Chi Zhang
2009-10-21T23:59:59.000Z
We consider deterministic and {\\em randomized} quantum algorithms simulating $e^{-iHt}$ by a product of unitary operators $e^{-iA_jt_j}$, $j=1,...,N$, where $A_j\\in\\{H_1,...,H_m\\}$, $H=\\sum_{i=1}^m H_i$ and $t_j > 0$ for every $j$. Randomized algorithms are algorithms approximating the final state of the system by a mixed quantum state. First, we provide a scheme to bound the trace distance of the final quantum states of randomized algorithms. Then, we show some randomized algorithms, which have the same efficiency as certain deterministic algorithms, but are less complicated than their opponentes. Moreover, we prove that both deterministic and randomized algorithms simulating $e^{-iHt}$ with error $\\e$ at least have $\\Omega(t^{3/2}\\e^{-1/2})$ exponentials.
SMT-based Bounded Model Checking with Difference Logic Constraints
Bersani, Marcello M; Morzenti, Angelo; Pradella, Matteo; Rossi, Matteo; Pietro, Pierluigi San
2010-01-01T23:59:59.000Z
Traditional Bounded Model Checking (BMC) is based on translating the model checking problem into SAT, the Boolean satisfiability problem. This paper introduces an encoding of Linear Temporal Logic with Past operators (PLTL) into the Quantifier-Free Difference Logic with Uninterpreted Functions (QF-UFIDL). The resulting encoding is a simpler and more concise version of existing SATbased encodings, currently used in BMC. In addition, we present an extension of PLTL augmented with arithmetic relations over integers, which can express unbounded counters; as such, the extended logic is more expressive than PLTL. We introduce suitable restrictions and assumptions that are shown to make the verification problem for the extended logic decidable, and we define an encoding of the new logic into QF-UFIDL. Finally, a performance comparison with the SAT-based approach on purely PLTL examples shows significant improvements in terms of both execution time and memory occupation.
Nontrivial Geometries: Bounds on the Curvature of the Universe
Laura Mersini-Houghton; Yun Wang; Pia Mukherjee; Ervin Kafexhiu
2007-05-02T23:59:59.000Z
Probing the geometry of the universe is one of the most important endevours in cosmology. Current observational data from the Cosmic Microwave Background anisotropy (CMB), galaxy surveys and type Ia supernovae (SNe Ia) strongly constrain the curvature of the universe to be close to zero for a universe dominated by a cosmological constant or dark energy with a constant equation of state. Here we investigate the role of cosmic priors on deriving these tight bounds on geometry, by considering a landscape motivated scenario with an oscillating curvature term. We perform a likelihood analysis of current data under such a model of non-trivial geometry and find that the uncertainties on curvature, and correspondingly on parameters of the matter and dark energy sectors, are larger. Future dark energy experiments together with CMB data from experiments like Planck could dramatically improve our ability to constrain cosmic curvature under such models enabling us to probe possible imprints of quantum gravity.
Universality and scaling limit of weakly-bound tetramers
M. R. Hadizadeh; M. T. Yamashita; Lauro Tomio; A. Delfino; T. Frederico
2011-01-02T23:59:59.000Z
The occurrence of a new limit cycle in few-body physics, expressing a universal scaling function relating the binding energies of two consecutive tetramer states, is revealed, considering a renormalized zero-range two-body interaction applied to four identical bosons. The tetramer energy spectrum is obtained when adding a boson to an Efimov bound state with energy $B_3$ in the unitary limit (for zero two-body binding, or infinite two-body scattering length). Each excited $N-$th tetramer energy $B_4^{(N)}$ is shown to slide along a scaling function as a short-range four-body scale is changed, emerging from the 3+1 threshold for a universal ratio $B_4^ {(N)}/B_3 \\simeq 4.6$, which does not depend on $N$. The new scale can also be revealed by a resonance in the atom-trimer recombination process.
Universality and scaling limit of weakly-bound tetramers
Hadizadeh, M R; Tomio, Lauro; Delfino, A; Frederico, T
2011-01-01T23:59:59.000Z
The occurrence of a new limit cycle in few-body physics, expressing a universal scaling function relating the binding energies of two consecutive tetramer states, is revealed, considering a renormalized zero-range two-body interaction applied to four identical bosons. The tetramer energy spectrum is obtained when adding a boson to an Efimov bound state with energy $B_3$ in the unitary limit (for zero two-body binding, or infinite two-body scattering length). Each excited $N-$th tetramer energy $B_4^{(N)}$ is shown to slide along a scaling function as a short-range four-body scale is changed, emerging from the 3+1 threshold for a universal ratio $B_4^ {(N)}/B_3 \\simeq 4.6$, which does not depend on $N$. The new scale can also be revealed by a resonance in the atom-trimer recombination process.
Security bounds for efficient decoy-state quantum key distribution
Marco Lucamarini; James F. Dynes; Bernd Fröhlich; Zhiliang Yuan; Andrew J. Shields
2015-03-25T23:59:59.000Z
Information-theoretical security of quantum key distribution (QKD) has been convincingly proven in recent years and remarkable experiments have shown the potential of QKD for real world applications. Due to its unique capability of combining high key rate and security in a realistic finite-size scenario, the efficient version of the BB84 QKD protocol endowed with decoy states has been subject of intensive research. Its recent experimental implementation finally demonstrated a secure key rate beyond 1 Mbps over a 50 km optical fiber. However the achieved rate holds under the restrictive assumption that the eavesdropper performs collective attacks. Here, we review the protocol and generalize its security. We exploit a map by Ahrens to rigorously upper bound the Hypergeometric distribution resulting from a general eavesdropping. Despite the extended applicability of the new protocol, its key rate is only marginally smaller than its predecessor in all cases of practical interest.
Cosmological bounds on sub-MeV mass axions
Cadamuro, Davide; Raffelt, Georg; Redondo, Javier [Max-Planck-Institut für Physik (Werner-Heisenberg-Institut), Föhringer Ring 6, D-80805 München (Germany); Hannestad, Steen, E-mail: cadamuro@mppmu.mpg.de, E-mail: sth@phys.au.dk, E-mail: raffelt@mppmu.mpg.de, E-mail: redondo@mppmu.mpg.de [Department of Physics and Astronomy, University of Aarhus, DK-8000 Aarhus C (Denmark)
2011-02-01T23:59:59.000Z
Axions with mass m{sub a} ?> 0.7 eV are excluded by cosmological precision data because they provide too much hot dark matter. While for m{sub a} ?> 20 eV the a ? 2? lifetime drops below the age of the universe, we show that the cosmological exclusion range can be extended to 0.7eV ?< m{sub a} ?< 300 keV, primarily by the cosmic deuterium abundance: axion decays would strongly modify the baryon-to-photon ratio at BBN relative to the one at CMB decoupling. Additional arguments include neutrino dilution relative to photons by axion decays and spectral CMB distortions. Our new cosmological constraints complement stellar-evolution and laboratory bounds.
Ensemble-based characterization of unbound and bound states on protein energy landscape
Ruvinsky, Anatoly M; Tuzikov, Alexander V; Vakser, Ilya A
2012-01-01T23:59:59.000Z
Characterization of protein energy landscape and conformational ensembles is important for understanding mechanisms of protein folding and function. We studied ensembles of bound and unbound conformations of six proteins to explore their binding mechanisms and characterize the energy landscapes in implicit solvent. First, results show that bound and unbound spectra often significantly overlap. Moreover, the larger the overlap the smaller the RMSD between bound and unbound conformational ensembles. Second, the analysis of the unbound-to-bound changes points to conformational selection as the binding mechanism for four of the proteins. Third, the center of the unbound spectrum has a higher energy than the center of the corresponding bound spectrum of the dimeric and multimeric states for most of the proteins. This suggests that the unbound states often have larger entropy than the bound states considered outside of the complex. Fourth, the exhaustively long minimization, making small intra-rotamer adjustments, ...
Flores, Kathryn Louise
1989-01-01T23:59:59.000Z
ethanol . . 19 2 Average percent weight losses of bound Silicalite . 3 Adsorption results of the desorption experiments . 33 4 Desorption rates of ethanol and water from bound Silicalite 48 5 Mass balance and percent recovery of ethanol...CONCENTRATION OF LIGHT ORGANIC COMPOUNDS FROM DILUTE AQUEOUS SOLUTIONS BY ADSORPTION ON BOUND SILICALITE A Thesis KATHRYN LOUISE FLORES Submitted to the Office of Graduate Studies of Texas ARM University in partial fulfillment...
Search for particle-bound 26-O and 28-F in p-stripping reactions
A. Schiller; T. Baumann; J. Dietrich; S. Kaiser; W. Peters; M. Thoennessen
2005-04-05T23:59:59.000Z
We have searched for particle-bound 26-O and 28-F isotopes in the reaction products of secondary 27-F and 29-Ne beams, respectively. No events have been observed. Upper limits for the respective production cross sections by one-p-stripping reactions are established under the assumption that 26-O and 28-F are particle bound. Since the experimental upper limits are much lower than common estimates we conclude that neither 26-O nor 28-F are likely particle bound.
Relationship of the serum protein-bound iodine to rates of gain in beef cattle
Stokes, David Kershaw
1956-01-01T23:59:59.000Z
HERITABILITY AND REPEATABILITY OF THE SERUM PROTEIN- BOUND IODINE IN IMMATURE BEEF CATTLE...................... 13 THE METHOD OF MEASUREMENT OF SERUM PROTEIN- BOUND IODINE............................................ 13 REPEATABILITY OF THE SERUM PBI LEVEL.................... 17 ESTIMATES OF HE RIT ABILITY OF THE SERUM PBI LEVEL IN IMMATURE BEEF CATTLE......................... 23 RELATIONSHIP OF THE SERUM PROTEIN-BOUND IODINE LEVELS TO RATES OF GAIN IN IMMATURE BEEF CATTLE......... 31 PROCEDURE...
The bound on the renormalized charge in quantum electrodynamics and in the Wess-Zumino model
Krasnikov, N.V. (Institute for Nuclear Research, Academy of Sciences of the USSR, Moscow 11712 (SU))
1991-03-14T23:59:59.000Z
This paper reports on an upper bound on the renormalized coupling constant {alpha} {le} 3{pi}{epsilon} + O({epsilon}{sup 2}) found in quantum electrodynamics in n = 4 {minus} 2{epsilon} space-time. Analogous bound is obtained for a la Speer regularized Wess-Zumino model. The obtained bound means the triviality of QED and the Wess-Zumino model in the limit of the regularization removing.
Entropy bound for a charged object from the Kerr-Newman black hole
B. Linet
1999-03-31T23:59:59.000Z
We derive again the upper entropy bound for a charged object by employing thermodynamics of the Kerr-Newman black hole linearised with respect to its electric charge
A generic set that does not bound a minimal Mariya Ivanova Soskova
Soskova, Mariya I.
A generic set that does not bound a minimal pair Mariya Ivanova Soskova University of Leeds under extensions. Each node is labelled wit
Marc Briant
2014-11-05T23:59:59.000Z
We prove the immediate appearance of an exponential lower bound, uniform in time and space, for continuous mild solutions to the full Boltzmann equation in a $C^2$ convex bounded domain with the physical Maxwellian diffusion boundary conditions, under the sole assumption of regularity of the solution. We investigate a wide range of collision kernels, with and without Grad's angular cutoff assumption. In particular, the lower bound is proven to be Maxwellian in the case of cutoff collision kernels. Moreover, these results are entirely constructive if the initial distribution contains no vacuum, with explicit constants depending only on the \\textit{a priori} bounds on the solution.
Efficient upper and lower bounds for global mixed-integer optimal ...
2013-11-07T23:59:59.000Z
operated in two discrete modes, leading either to acceleration and energy consump- .... For this procedure asymptotic bounds and very efficient algorithms.
Lower Bound of Concurrence and Distillation for Arbitrary Dimensional Bipartite Quantum States
Zhao, Ming-Jing; Fei, Shao-Ming; Li-Jost, Xianqing; 10.1103/PhysRevA.84.062322
2011-01-01T23:59:59.000Z
We present a lower bound of concurrence for arbitrary dimensional bipartite quantum states. This lower bound may be used to improve all the known lower bounds of concurrence. Moreover, the lower bound gives rise to an operational sufficient criterion of distillability of quantum entanglement. The significance of our result is illustrated by quantitative evaluation of entanglement for entangled states that fail to be identified by the usual concurrence estimation method, and by showing the distillability of mixed states that can not be recognized by other distillability criteria.
Lower Bound of Concurrence and Distillation for Arbitrary Dimensional Bipartite Quantum States
Ming-Jing Zhao; Xue-Na Zhu; Shao-Ming Fei; Xianqing Li-Jost
2011-12-23T23:59:59.000Z
We present a lower bound of concurrence for arbitrary dimensional bipartite quantum states. This lower bound may be used to improve all the known lower bounds of concurrence. Moreover, the lower bound gives rise to an operational sufficient criterion of distillability of quantum entanglement. The significance of our result is illustrated by quantitative evaluation of entanglement for entangled states that fail to be identified by the usual concurrence estimation method, and by showing the distillability of mixed states that can not be recognized by other distillability criteria.
Klee-Minty's LP and Upper Bounds for Dantzig's Simplex Method
Tomonari Kitahara
2011-01-04T23:59:59.000Z
Jan 4, 2011 ... Klee-Minty's LP and Upper Bounds for Dantzig's Simplex Method. Tomonari ... Citation: This article will appear in Operations Research Letters.
Lower Bounds on the Exchange-Correlation Energy in Reduced Dimensions
Räasänen, E; Capelle, K; Proetto, C R
2009-01-01T23:59:59.000Z
Bounds on the exchange-correlation energy of many-electron systems are derived and tested. By using universal scaling properties of the electron-electron interaction, we obtain the exponent of the bounds in three, two, one, and quasi-one dimensions. From the properties of the electron gas in the dilute regime, the tightest estimate to date is given for the numerical prefactor of the bound, which is crucial in practical applications. Numerical tests on various low-dimensional systems are in line with the bounds obtained, and give evidence of an interesting dimensional crossover between two and one dimensions.
Set-Membership Identification Based Adaptive Robust Control of Systems With Unknown Parameter Bounds
Yao, Bin
. The estimated parameter variation bounds are subsequently used to construct a continuous-time domain projection Bounds Lu Lu and Bin Yao Abstract-- In this paper, a hybrid control architecture is proposed to obtain non-conservative real-time estimation of the regions where model parameters could actually be
DENOMINATOR BOUNDS IN THOMPSON-LIKE GROUPS AND FLOWS DANNY CALEGARI
McReynolds, Ben
DENOMINATOR BOUNDS IN THOMPSON-LIKE GROUPS AND FLOWS DANNY CALEGARI ABSTRACT. Let T denote Thompson Thompson-like. We also obtain an explicit upper bound on the smallest period of a fixed point in terms and Sergiescu studied Thompson's group T of homeomorphisms of the circle from a number of points of view
Zero-Entropy Minimization for Blind Extraction of Bounded Sources (BEBS)
Verleysen, Michel
Zero-Entropy Minimization for Blind Extraction of Bounded Sources (BEBS) Fr´ed´eric Vrins1 , Deniz, we focus on zero-order Renyi's entropy minimization for the blind extraction of bounded sources (BEBS in the context of BEBS, when the sources have non-convex supports. 1 Introduction Shannon's entropy is a powerful
Bounding the Energy Consumption of Mobile Sensor Nodes For Triangulation-based Coverage
Krovi, Venkat
1 Bounding the Energy Consumption of Mobile Sensor Nodes For Triangulation-based Coverage Asheq the energy consumption of the MTA interms of the distance and time taken to complete the full coverage of the field. The bounds on the minimum total and individual energy consumption per MSN is determined. A prior
Entropy bound of a charged object and electrostatic self-energy in black holes
B. Linet
1999-11-30T23:59:59.000Z
Without pretending to any rigour, we find a general expression of the electrostatic self-energy in static black holes with spherical symmetry. We determine the entropy bound of a charged object by assuming the existence of thermodynamics for these black holes. By combining these two results, we show that the entropy bound does not depend on the considered black hole.
Communication Bounds for Heterogeneous Architectures Grey Ballard, James Demmel, and Andrew Gearhart
California at Berkeley, University of
Gearhart University of California, Berkeley Abstract. As the gap between the cost of communication (i become a critical research objective. Toward this end, we seek asymptotic communication lower bounds for general memory models and classes of algorithms. Recent work has established lower bounds for a wide set
A Branch and Bound Algorithm for the Protein Folding Problem in the HP Lattice Model
Istrail, Sorin
Article A Branch and Bound Algorithm for the Protein Folding Problem in the HP Lattice Model Mao tool for the protein folding problem. Key words: protein folding, HP model, branch and bound, lattice Introduction The protein folding problem, or the protein struc- ture prediction problem, is one of the most
Improving Bounds on the Football Pool Problem via Symmetry Reduction and High-Throughput Computing
Linderoth, Jeffrey T.
Improving Bounds on the Football Pool Problem via Symmetry Reduction and High-Throughput Computing of Wisconsin-Madison, 1210 W. Dayton St., Madison, WI 53706, USA, gthain@cs.wisc.edu The Football Pool Problem theory. Key words: Football Pool Problem; High-Throughput Computing; Branch-and-Bound; Con- dor; Master
Bounds on R-parity violating supersymmetric couplings from leptonic and semileptonic meson decays
Dreiner, H. K.; Kraemer, M.; O'Leary, Ben [Physikalisches Institut der Universitaet Bonn, Nussallee 12, 53115 Bonn (Germany); Institut fuer Theoretische Physik E, RWTH Aachen, 52056 Aachen (Germany); S.U.P.A., School of Physics, University of Edinburgh, Edinburgh EH9 3JZ, Scotland (United Kingdom) and Institut fuer Theoretische Physik E, RWTH Aachen, 52056 Aachen (Germany)
2007-06-01T23:59:59.000Z
We present a comprehensive update of the bounds on R-parity violating supersymmetric couplings from lepton-flavor- and lepton-number-violating decay processes. We consider {tau} and {mu} decays as well as leptonic and semileptonic decays of mesons. We present several new bounds resulting from {tau}, {eta}, and kaon decays and correct some results in the literature concerning B meson decays.
An RFID Distance Bounding Gerhard P. Hancke and Markus G. Kuhn
Hancke, Gerhard
range Used to link an item or person to a location An RFID Distance Bounding Protocol p. #12;Relay application layer security protocols An RFID Distance Bounding Protocol p. #12;Relay attack demonstration Proxy Token 14443 A/B test card circuit Signal processing with discrete components Duplex RF link Proxy
Opportunistic Routing in Wireless Ad Hoc Networks: Upper Bounds for the Packet
Mans, Bernard
routing, in a realistic network model where link conditions are variable. We analyze the performance1 Opportunistic Routing in Wireless Ad Hoc Networks: Upper Bounds for the Packet Propagation Speed to the destination. In this paper, we provide upper bounds on the packet propaga- tion speed for opportunistic
ERROR BOUNDS FOR MONOTONE APPROXIMATION SCHEMES FOR HAMILTON-JACOBI-BELLMAN
ERROR BOUNDS FOR MONOTONE APPROXIMATION SCHEMES FOR HAMILTON-JACOBI-BELLMAN EQUATIONS GUY BARLES AND ESPEN R. JAKOBSEN Abstract. We obtain error bounds for monotone approximation schemes of Hamilton-Jacobi, (almost) smooth supersolutions for the Hamilton-Jacobi-Bellman equation. 1. Introduction This paper
Pricing the American Put Using A New Class of Tight Lower Bounds Malik Magdon-Ismail
Magdon-Ismail, Malik
, and an important issue is the trade off between the pricing accuracy and the computational cost. Our approachPricing the American Put Using A New Class of Tight Lower Bounds Malik Magdon-Ismail Department of lower bounds for the price of the American put option on a dividend paying stock when the stock follows
Context-Bounded Model Checking of LTL Properties for ANSI-C Software
Context-Bounded Model Checking of LTL Properties for ANSI-C Software Jeremy Morse1 , Lucas Cordeiro in low-level programming languages like ANSI- C. In this paper, we describe and experiment such as ANSI-C [9, 23, 17]. In context-bounded model checking, the state spaces of such applications
SMT-Based Bounded Model Checking for Embedded ANSI-C Software Lucas Cordeiro
SMT-Based Bounded Model Checking for Embedded ANSI-C Software Lucas Cordeiro University to the verification of embedded soft- ware written in ANSI-C. We have extended the encodings from previous SMT. Keywords-Bounded Model Checking; Satisfiability Modulo Theories; Embedded ANSI-C Software; I. INTRODUCTION
Bounding biomass in the Fisher equation Daniel A. Birch,* Yue-Kin Tsang,
Young, William R.
Bounding biomass in the Fisher equation Daniel A. Birch,* Yue-Kin Tsang, and William R. Young and upper and lower bounds on the biomass and productivity that follow from variational arguments and direct to predict the biomass, productivity, and extinction transitions. All results are illustrated with a simple
A General Result on the Stabilization of Linear Systems Using Bounded Controls 1
Sontag, Eduardo
A General Result on the Stabilization of Linear Systems Using Bounded Controls 1 H'ector J of controllers that globally stabilize linear systems subject to control saturation. We allow essentially words: linear systems, saturated actuators, bounded controls, neural nets October, 1992. Revised
DEAR: Delay-bounded Energy-constrained Adaptive Routing in Wireless Sensor Networks
Tang, Jian "Neil"
DEAR: Delay-bounded Energy-constrained Adaptive Routing in Wireless Sensor Networks Shi Bai¶, Weiyi in wireless sensor networks. In this work, we study Delay-bounded Energy-constrained Adaptive Routing (DEAR) problem with reli- ability, differential delay, and transmission energy consumption constraints
Generalized External Interaction with Tamper-Resistant Hardware with Bounded Information Leakage
Reif, Rafael
Generalized External Interaction with Tamper-Resistant Hardware with Bounded Information Leakage hardware leaking a strictly bounded amount of in- formation. Architectural support for the interaction-resistant hardware systems, Ascend completely obfuscates pin traffic through the use of Oblivious RAM (ORAM
Experimental Results on Upper Bounds for Vertex Pi-Lights Victoria Brumberg1
Ramaswami, Suneeta
Experimental Results on Upper Bounds for Vertex Pi-Lights Victoria Brumberg1 Suneeta Ramaswami2 Diane Souvaine3 Abstract The problem of illuminating a simple n-gon with cn, c lights is open, whereas a lower bound of 3 5 n is known. We provide an algorithm for placing -lights, and experimental
On the Power of Uniform Power: Capacity of Wireless Networks with Bounded
On the Power of Uniform Power: Capacity of Wireless Networks with Bounded Resources Chen Avin1-case performance of uniform and non-uniform power assignments differ under constraints such as a bound on the area where nodes are distributed or restrictions on the maximum power available. We determine the maximum
On the Skew-Bounded Minimum-Bu er Routing Tree Problem Christoph Albrecht,y
Zelikovsky, Alexander
self-heating in inter- connects 8 , and facilitate technology migration since designs are more balanced@cs.gsu.edu Abstract|Bounding the load capacitance at gate outputs is a standard element in today's electrical cor outputs is a standard element in to- day's electrical correctness methodologies. Bounds on load caps
Sharp upper bounds on the number of resonances near the real axis ...
system for which this bound is optimal and also prove similar bound in case of ... in the abstract “black box scattering” setting introduced by Sj?strand and Zworski [SjZ] (see next section). It is ...... M. ZWORSKI, private communication, 1992.
New method for extracting quasi-bound states from the continuum
J. B. Faes; M. Ploszajczak
2007-09-19T23:59:59.000Z
A new parameter-free method is proposed for treatment of single-particle resonances in the real-energy continuum shell model. This method yields quasi-bound states embedded in the continuum which provide a natural generalization of weakly bound single-particle states.
An alternative energy bound derivation for a generalized Hasegawa-Mima equation
Fetecau, Razvan C.
An alternative energy bound derivation for a generalized Hasegawa-Mima equation Jared C. Bronski Razvan Fetecau December 28, 2011 Abstract We present an alternative derivation of the H1 -boundedness function technique similar to the one used for constructing energy bounds for the Kuramoto
ON A PRICED RESOURCE-BOUNDED ALTERNATING Della Monica, Dario1
Della Monica, Dario
, logics able to express bounds on resources have been introduced, such as RB-ATL and PRB-ATL, both of them-Bounded Alternating Âµ-calculus (PRB-AMC), is an extension of both PRB-ATL and AMC. In analogy with PRB-ATL, we scenarios can be adequately described. First, we show that the model checking problem for PRB
Stephan, Frank
powerful than next value learning. Furthermore while next value learning is closed under union, this type of these two basic types of learning. There are several approaches how to introduce resource bounds to learningResource Bounded Next Value and Explanatory Identification Learning Automata, Patterns
Improved Approximation Algorithms for the Min-max Tree Cover and Bounded Tree Cover Problems
Salavatipour, Mohammad R.
). In this paper we consider Min-Max k-Tree Cover Problem (MMkTC) and Bounded Tree Cover Problem (BTC) defined of the largest tree in the cover is minimized. In the Bounded Tree Cover problem (BTC), we are given the weight G
Bounds on the Bethe Free Energy for Gaussian Networks Botond Cseke
Edinburgh, University of
Bounds on the Bethe Free Energy for Gaussian Networks Botond Cseke Faculty of Science Radboud Bethe free energy in terms of the moment parameters of the approximate marginals and derive an upper): even when the Bethe free energy is not bounded from below, it can possess a local minimum to which
Computing Upper and Lower Bounds for the J-integral in Two-Dimensional Linear
Peraire, Jaime
and Education, China bLaboratori de C`alcul Num`eric, Universitat Polit`ecnica de Catalunya, Barcelona, Spain c. The quadratic component is bounded by the energy norm of the error scaled by a continuity constant, which in the displacement and in a computed adjoint solution, and bounded by an appropriate combination of the energy norms
Bounds for the price of discrete arithmetic Asian options M. Vanmaele
Vanmaele, Michèle
on discrete averaging which is the normal specification in real contracts. Discrete arithmetic Asian optionsBounds for the price of discrete arithmetic Asian options M. Vanmaele , G. Deelstra , J. Liinev , J.Goovaerts@econ.kuleuven.ac.be, Tel. +32 16 326750. #12;Bounds for the price of discrete arithmetic Asian options Abstract
Topological modes bound to dislocations in mechanical metamaterials
Jayson Paulose; Bryan Gin-ge Chen; Vincenzo Vitelli
2015-04-23T23:59:59.000Z
Mechanical metamaterials are artificial structures with unusual properties, such as negative Poisson ratio, bistability or tunable vibrational properties, that originate in the geometry of their unit cell. At the heart of such unusual behaviour is often a soft mode: a motion that does not significantly stretch or compress the links between constituent elements. When activated by motors or external fields, soft modes become the building blocks of robots and smart materials. Here, we demonstrate the existence of topological soft modes that can be positioned at desired locations in a metamaterial while being robust against a wide range of structural deformations or changes in material parameters. These protected modes, localized at dislocations, are the mechanical analogue of topological states bound to defects in electronic systems. We create physical realizations of the topological modes in prototypes of kagome lattices built out of rigid triangular plates. We show mathematically that they originate from the interplay between two Berry phases: the Burgers vector of the dislocation and the topological polarization of the lattice. Our work paves the way towards engineering topologically protected nano-mechanical structures for molecular robotics or information storage and read-out.
Gauge/String-Gravity Duality and Froissart Bound
Kyungsik Kang
2004-10-16T23:59:59.000Z
The gauge/string-gravity duality correspondence opened renewed hope and possibility to address some of the fundamental and non-perturbative QCD problems in particle physics, such as hadron spectrum and Regge behavior of the scattering amplitude at high energies. One of the most fundamental and long-standing problem is the high energy behavior of total cross-sections. According to a series of exhaustive tests by the COMPETE group, (1). total cross-sections have a universal Heisenberg behavior in energy corresponding to the maximal energy behavior allowed by the Froissart bound, i.e., $A + B ln^2 (s/s_0)$ with $B \\sim 0.32 mb$ and $s_0 \\sim 34.41 GeV^2$ for all reactions, and (2). the factorization relation among $\\sigma_{pp, even}, \\sigma_{\\gamma p}, and \\sigma_{\\gamma \\gamma}$ is well satisfied by experiments. I discuss the recent interesting application of the gauge/string-gravity duality of $AdS/CFT$ correspondence with a deformed background metric so as to break the conformal symmetry that can lead to the Heisenberg behavior of rising total cross-sections, and present some preliminary results on the high energy QCD from Planckian scattering in $AdS$ and black-hole production.
Cauchy's formulas for random walks in bounded domains
Mazzolo, Alain, E-mail: alain.mazzolo@cea.fr; Zoia, Andrea, E-mail: andrea.zoia@cea.fr [CEA/Saclay, DEN/DANS/DM2S/SERMA/LTSD, 91191 Gif-sur-Yvette (France); Mulatier, Clélia de, E-mail: clelia.demulatier@cea.fr [CEA/Saclay, DEN/DANS/DM2S/SERMA/LTSD, 91191 Gif-sur-Yvette and CNRS - Université Paris-Sud, LPTMS, UMR8626, 91405 Orsay Cedex (France)
2014-08-01T23:59:59.000Z
Cauchy's formula was originally established for random straight paths crossing a body B?R{sup n} and basically relates the average chord length through B to the ratio between the volume and the surface of the body itself. The original statement was later extended in the context of transport theory so as to cover the stochastic paths of Pearson random walks with exponentially distributed flight lengths traversing a bounded domain. Some heuristic arguments suggest that Cauchy's formula may also hold true for Pearson random walks with arbitrarily distributed flight lengths. For such a broad class of stochastic processes, we rigorously derive a generalized Cauchy's formula for the average length traveled by the walkers in the body, and show that this quantity depends indeed only on the ratio between the volume and the surface, provided that some constraints are imposed on the entrance step of the walker in B. Similar results are also obtained for the average number of collisions performed by the walker in B.
Bound States for Nano-Tubes with a Dislocation
Rainer Hempel; Martin Kohlmann; Marko Stautz; Jürgen Voigt
2015-03-16T23:59:59.000Z
As a model for an interface in solid state physics, we consider two real-valued potentials $V^{(1)}$ and $V^{(2)}$ on the cylinder or tube $S=\\mathbb R \\times (\\mathbb R/\\mathbb Z)$ where we assume that there exists an interval $(a_0,b_0)$ which is free of spectrum of $-\\Delta+V^{(k)}$ for $k=1,2$. We are then interested in the spectrum of $H_t = -\\Delta + V_t$, for $t \\in \\mathbb R$, where $V_t(x,y) = V^{(1)}(x,y)$, for $x > 0$, and $V_t(x,y) = V^{(2)}(x+t,y)$, for $x < 0$. While the essential spectrum of $H_t$ is independent of $t$, we show that discrete spectrum, related to the interface at $x = 0$, is created in the interval $(a_0, b_0)$ at suitable values of the parameter $t$, provided $-\\Delta + V^{(2)}$ has some essential spectrum in $(-\\infty, a_0]$. We do not require $V^{(1)}$ or $V^{(2)}$ to be periodic. We furthermore show that the discrete eigenvalues of $H_t$ are Lipschitz continuous functions of $t$ if the potential $V^{(2)}$ is locally of bounded variation.
A Skyrme-like model with an exact BPS bound
L. A. Ferreira; Wojtek J. Zakrzewski
2013-07-22T23:59:59.000Z
We propose a new Skyrme-like model with fields taking values on the sphere S^3 or, equivalently, on the group SU(2). The action of the model contains a quadratic kinetic term plus a quartic term which is the same as that of the Skyrme-Faddeev model. The novelty of the model is that it possess a first order Bogomolny type equation whose solutions automatically satisfy the second order Euler-Lagrange equations. It also possesses a lower bound on the static energy which is saturated by the Bogomolny solutions. Such Bogomolny equation is equivalent to the so-called force free equation used in plasma and solar Physics, and which possesses large classes of solutions. An old result due to Chandrasekhar prevents the existence of finite energy solutions for the force free equation on the entire tridimensional space R^3. We construct new exact finite energy solutions to the Bogomolny equations for the case where the space is the three-sphere S^3, using toroidal like coordinates.
Finite Energy and Bounded Attacks on Control System Sensor Signals
Djouadi, Seddik M [ORNL; Melin, Alexander M [ORNL; Ferragut, Erik M [ORNL; Laska, Jason A [ORNL
2014-01-01T23:59:59.000Z
Control system networks are increasingly being connected to enterprise level networks. These connections leave critical industrial controls systems vulnerable to cyber-attacks. Most of the effort in protecting these cyber-physical systems (CPS) has been in securing the networks using information security techniques and protection and reliability concerns at the control system level against random hardware and software failures. However, besides these failures the inability of information security techniques to protect against all intrusions means that the control system must be resilient to various signal attacks for which new analysis and detection methods need to be developed. In this paper, sensor signal attacks are analyzed for observer-based controlled systems. The threat surface for sensor signal attacks is subdivided into denial of service, finite energy, and bounded attacks. In particular, the error signals between states of attack free systems and systems subject to these attacks are quantified. Optimal sensor and actuator signal attacks for the finite and infinite horizon linear quadratic (LQ) control in terms of maximizing the corresponding cost functions are computed. The closed-loop system under optimal signal attacks are provided. Illustrative numerical examples are provided together with an application to a power network with distributed LQ controllers.
Conserved Correlation in PT -symmetric Systems: Scattering and Bound States
Kumar Abhinav; Arun Jayannavar; P. K. Panigrahi
2012-11-05T23:59:59.000Z
For one-dimensional PT -symmetric systems, it is observed that the non-local product obtained from the continuity equation can be interpreted as a conserved corre- lation function. This leads to physical conclusions, regarding both discrete and continuum states of such systems. Asymptotic states are shown to have necessarily broken PT -symmetry, leading to modified scattering and transfer matrices. This yields restricted boundary conditions, e.g., in- cidence from both sides, analogous to that of the proposed PT CPA laser. The interpretation of left and right states leads to a Hermitian S-matrix, resulting in the non-conservation of the flux. This further satisfies a duality condition, identical to the optical analogues. However, the non-local conserved scalar implements alternate boundary conditions in terms of in and out states, leading to the pseudo-Hermiticity condition in terms of the scattering matrix. Interestingly, when PT -symmetry is preserved, it leads to stationary states with real energy, naturally inter- pretable as bound states. The broken PT -symmetric phase is also captured by this correlation, with complex-conjugate pair of energies, interpreted as resonances.
Constraining a fourth generation of quarks: non-perturbative Higgs boson mass bounds
John Bulava; Karl Jansen; Attila Nagy
2013-01-15T23:59:59.000Z
We present a non-perturbative determination of the upper and lower Higgs boson mass bounds with a heavy fourth generation of quarks from numerical lattice computations in a chirally symmetric Higgs-Yukawa model. We find that the upper bound only moderately rises with the quark mass while the lower bound increases significantly, providing additional constraints on the existence of a straight-forward fourth quark generation. We examine the stability of the lower bound under the addition of a higher dimensional operator to the scalar field potential using perturbation theory, demonstrating that it is not significantly altered for small values of the coupling of this operator. For a Higgs boson mass of $\\sim125\\mathrm{GeV}$ we find that the maximum value of the fourth generation quark mass is $\\sim300\\mathrm{GeV}$, which is already in conflict with bounds from direct searches.
A lower bound on expected communication cost of quantum state merging
Anurag Anshu
2015-06-21T23:59:59.000Z
We show a lower bound on expected communication cost of one-way entanglement assisted quantum state merging and a slightly better lower bound for its special case, quantum state transfer. Our bound implies that the expected communication cost of one-way protocols is not significantly better than worst case communication cost, in terms of scaling of error. Our argument is based on a technical tool of convex split, introduced recently in context of quantum state redistribution in Anshu,Jain,Devabathini[2014].
Upper Higgs boson mass bounds from a chirally invariant lattice Higgs-Yukawa model
P. Gerhold; K. Jansen
2010-02-23T23:59:59.000Z
We establish the cutoff-dependent upper Higgs boson mass bound by means of direct lattice computations in the framework of a chirally invariant lattice Higgs-Yukawa model emulating the same chiral Yukawa coupling structure as in the Higgs-fermion sector of the Standard Model. As expected from the triviality picture of the Higgs sector, we observe the upper mass bound to decrease with rising cutoff parameter $\\Lambda$. Moreover, the strength of the fermionic contribution to the upper mass bound is explored by comparing to the corresponding analysis in the pure $\\Phi^4$-theory.
Upper and lower bounds for an eigenvalue associated with a positive eigenvector
Mouchet, Amaury
particles. © 2006 American Institute of Physics. DOI: 10.1063/1.2168124 I. INTRODUCTION In most situations by Handy and Bessis, 1985, the Riccati-Padé method proposed in Fernández et al., 1989 and the lower bounds
Energy Dependence of Solar Neutrino Suppression and Bounds on the Neutrino Magnetic Moment
Joao Pulido; Ana M. Mourao
1998-03-02T23:59:59.000Z
An analysis of neutrino electron scattering as applied to the SuperKamiokande solar neutrino experiment with the data from the Homestake experiment leads to an upper bound on the neutrino magnetic moment in the range $\\mu_{\
Stability of error bounds for semi-infinite convex constraint systems
2010-01-07T23:59:59.000Z
stable if all its “small” perturbations admit a (local or global) error bound. ... where T is a compact, possibly infinite, Hausdorff space, ft : Rn ? R, t ? T, are given ...
Rinard, Martin
Probabilistic Accuracy Bounds for Perforated Programs A New Foundation for Program Analysis, Accuracy, Verification, Program Analysis, Program Transformation Keywords Loop Perforation, Program an inherent perfor- mance versus accuracy trade-off -- the more computational re- sources (such as time
New bounds on neutrino electric millicharge from GEMMA experiment on neutrino magnetic moment
Victor B. Brudanin; Dmitry V. Medvedev; Alexander S. Starostin; Alexander I. Studenikin
2014-11-09T23:59:59.000Z
Using the new limit on the neutrino anomalous magnetic moment recently obtained by GEMMA experiment we get an order-of-magnitude estimation for possible new direct upper bound on the neutrino electric millicharge $\\mid q_{\
Laboratory bounds on Lorentz symmetry violation in low energy neutrino physics
E. Di Grezia; S. Esposito; G. Salesi
2006-03-13T23:59:59.000Z
Quantitative bounds on Lorentz symmetry violation in the neutrino sector have been obtained by analyzing existing laboratory data on neutron $\\beta$ decay and pion leptonic decays. In particular some parameters appearing in the energy-momentum dispersion relations for $\
Bounds on the vibrational energy that can be harvested from random base motion
Langley, R. S.
2014-11-29T23:59:59.000Z
This paper is concerned with the development of upper bounds on the energy harvesting performance of a general multi-degree-of-freedom nonlinear electromechanical system that is subjected to random base motion and secondary applied periodic forces...
New combinatorial bounds for universal hash functions L. H. Nguyen and A. W. Roscoe
Oxford, University of
represents a threshold in the behaviour of bounds but also quantifies the Wegman-Carter effect. 1 and Wegman [8, 35]. Each family, which is indexed by a r-bit key k, consists of 2r hash functions mapping
A branch and bound algorithm for the global optimization of Hessian ...
2011-11-16T23:59:59.000Z
Nov 1, 2011 ... Heuristic Algorithm 2.1 (LH) 5s. 485s. 2×10?2† 1×10?1†. Table 3: Run times of the different convex constrained branch and bound algorithms ...
Phase Noise in MIMO Systems: Bayesian Cramer-Rao Bounds and Soft-Input Estimation
Nasir, Ali A; Mehrpouyan, Hani; Schober, Robert; Hua, Yingbo
2013-01-01T23:59:59.000Z
for a 4 4 MIMO system, the proposed soft-input EKF-EKSin MIMO Systems: Bayesian Cramér–Rao Bounds and Soft-Inputof a MIMO system employing the proposed soft-input EKF-EKS
PROOF COMPLEXITY IN ALGEBRAIC SYSTEMS AND BOUNDED DEPTH FREGE SYSTEMS WITH
KrajÃÃ¨ek, Jan
PROOF COMPLEXITY IN ALGEBRAIC SYSTEMS AND BOUNDED DEPTH FREGE SYSTEMS WITH MODULAR COUNTING S. Buss; 2 S. Buss et al. NP 6= coNP . Despite extensive research (see the expository articles Buss (1995b
Essays on the evolution of social co-ordination and bounded rationality
Quilter, Tom
2010-01-01T23:59:59.000Z
Many evolutionary game theory papers have obtained their results when the bounded rationality which creates change vanishes. In our first chapter we consider whether such results are actually a good reflection of a ...
Bounds on the information rate of quantum-secret-sharing schemes
Sarvepalli, Pradeep [Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia, V6T 1Z1 (Canada)
2011-04-15T23:59:59.000Z
An important metric of the performance of a quantum-secret-sharing scheme is its information rate. Beyond the fact that the information rate is upper-bounded by one, very little is known in terms of bounds on the information rate of quantum-secret-sharing schemes. Furthermore, not every scheme can be realized with rate one. In this paper we derive upper bounds for the information rates of quantum-secret-sharing schemes. We show that there exist quantum access structures on n players for which the information rate cannot be better than O((log{sub 2}n)/n). These results are the quantum analogues of the bounds for classical-secret-sharing schemes proved by Csirmaz.
Generalized external interaction with tamper-resistant hardware with bounded information leakage
Yu, Xiangyao
This paper investigates secure ways to interact with tamper-resistant hardware leaking a strictly bounded amount of information. Architectural support for the interaction mechanisms is studied and performance implications ...
New bounding techniques for channel codes over quasi-static fading channels
Hu, Jingyu
2005-04-01T23:59:59.000Z
This thesis is intended to provide several new bounding techniques for channel codes over quasi-static fading channels (QSFC). This type of channel has drawn more and more attention recently with the demanding need for higher capacity and more...
A simplied approach for generating frequency domain bounds for QFT designs
Kyle, Eric Jacque
1998-01-01T23:59:59.000Z
unnecessary assumptions as well as to purposely use overly conservative constraints. Contained in this thesis is a methodology proposed for generating bounds that eliminate the need for this uncoupling. The new method uses an objective function subjected...
Analysis and interpretation of well test and production data for bounded reservoir systems
Likitsupin, Phisit
1994-01-01T23:59:59.000Z
performance data to determine the influence of reservoir boundaries. We provide new, closed form solutions for bounded circular reservoirs with and without vertical fractures, and we provide methodologies for the analysis and interpretation of test data...
Minimum Buffered Routing with Bounded Capacitive Load for Slew Rate and Reliability Control
Mandoiu, Ion
breakdown and AC self-heating in interconnects, and guarantees bounded input rise/fall times at buffers electrons) [10], [12] and AC self-heating in interconnects [20], and facilitate technology migration since
Minimum Buffered Routing with Bounded Capacitive Load for Slew Rate and Reliability Control
Zelikovsky, Alexander
with respect to hot-carrier oxide breakdown and AC self-heating in interconnects, and guarantees bounded input reliability with respect to hot-carrier oxide breakdown (hot electrons) [10], [12] and AC self-heating
Parallel Object Oriented Implementation of a 2D Bounded Electrostatic Plasma PIC Simulation \\Lambda
Bystroff, Chris
Parallel Object Oriented Implementation of a 2D Bounded Electrostatic Plasma PIC Simulation \\Lambda numbers of charged particles in their selfconsistent electromagnetic fields. The PIC method assumes
Verifying the error bound of numerical computation implemented in computer systems
Sawada, Jun
2013-03-12T23:59:59.000Z
A verification tool receives a finite precision definition for an approximation of an infinite precision numerical function implemented in a processor in the form of a polynomial of bounded functions. The verification tool receives a domain for verifying outputs of segments associated with the infinite precision numerical function. The verification tool splits the domain into at least two segments, wherein each segment is non-overlapping with any other segment and converts, for each segment, a polynomial of bounded functions for the segment to a simplified formula comprising a polynomial, an inequality, and a constant for a selected segment. The verification tool calculates upper bounds of the polynomial for the at least two segments, beginning with the selected segment and reports the segments that violate a bounding condition.
Bonet, J.
We present an implicit a-posteriori finite element procedure to compute bounds for functional outputs of finite element solutions in large strain elasticity. The method proposed relies on the existence of a potential energy ...
Boyer, Edmond
-bounded positive-definite matrix-valued random fields in the context of mesoscale modeling of heterogeneous elastic; Heterogeneous materials; Apparent elasticity tensor; Mesoscale modeling; Random field; Non-Gaussian. $ J
Bounds on the growth of high Sobolev norms of solutions to nonlinear Schrödinger equations
Sohinger, Vedran
2011-01-01T23:59:59.000Z
In this thesis, we study the growth of Sobolev norms of global solutions of solutions to nonlinear Schrödinger type equations which we can't bound from above by energy conservation. The growth of such norms gives a ...
Li, Jiangyu
Thermoelectroelastic moduli of textured piezoelectric polycrystals: Exact solutions and bounds and ferroelectric thin and thick films for a wide range of technological applications, and the realization- tions in high temperature piezoelectric and integrated semi- conductive devices.2 Ferroelectric
Relationship between R? bounds and asymptotic relative efficiency for quantized receivers
Cimadevilla, Marcos Ortiz
1991-01-01T23:59:59.000Z
RELATIONSHIP BETWEEN AD BOUNDS AND ASYMPTOTIC RELATIVE EFFICIENCY FOR QUANTIZED RECEIVERS A Thesis by MARCOS ORTIZ CIMADEVILLA Submitted to the Office of Graduate Studies of Texas ARM University in partial fulfillment of the requirements... for the degree of MASTER OF SCIENCE December 1991 Major Subject. : Electrical Engineering RELATIONSHIP BETWEEN R() BOUNDS AND ASYMPTOTIC RELATIVE EFFICIENCY FOR QUANTIZED RECEIVERS A Thesis bv MARCOS ORTIZ CIMADEVILLA Approved as to style and content by...
A Lower Bound on the per Soliton Capacity of the Nonlinear Optical Fibre Channel
Shevchenko, Nikita A; Derevyanko, Stanislav A; Alvarado, Alex; Bayvel, Polina; Turitsyn, Sergei K
2015-01-01T23:59:59.000Z
A closed-form expression for a lower bound on the per soliton capacity of the nonlinear optical fibre channel in the presence of (optical) amplifier spontaneous emission (ASE) noise is derived. This bound is based on a non-Gaussian conditional probability density function for the soliton amplitude jitter induced by the ASE noise and is proven to grow logarithmically as the signal-to-noise ratio increases.
Seismic reflection data analysis of the Oriente and Swan Fracture Zones bounding the Cayman Trough
Tinker, Mary Norris
1986-01-01T23:59:59.000Z
SEISMIC REFLECTION DATA ANALYSIS OF THE ORIENTE AND SWAN FRACTURE ZONES BOUNDING THE CAYMAN TROUGH A Thesis by MARY NORRIS TINKER Submitted to the Graduate College of Texas A8 M University in partial fulfillment of the requirements... for the degree of MASTER OF SCIENCE May 1986 Major Subject: Geophysics SEISMIC REFLECTION DATA ANALYSIS OF THE ORIENTE AND SWAN FRACTURE ZONES BOUNDING THE CAYMAN TROUGH A Thesis by MARY NORRIS TINKER Approved as to style and content by: D. A. Fa quiet...
Scattering and Bound State Green's Functions on a Plane via so(2,1) Lie Algebra
P. F. Borges; H. Boschi-Filho; A. N. Vaidya
2006-10-17T23:59:59.000Z
We calculate the Green's functions for the particle-vortex system, for two anyons on a plane with and without a harmonic regulator and in a uniform magnetic field. These Green's functions which describe scattering or bound states (depending on the specific potential in each case) are obtained exactly using an algebraic method related to the SO(2,1) Lie group. From these Green's functions we obtain the corresponding wave functions and for the bound states we also find the energy spectra.
Moroder, Tobias; Curty, Marcos; Luetkenhaus, Norbert [Quantum Information Theory Group, Institut fuer Theoretische Physik I, and Max-Planck Research Group, Institute of Optics, Information and Photonics, Universitaet Erlangen-Nuernberg, Staudtstrasse 7/B2, 91058 Erlangen (Germany)
2006-01-15T23:59:59.000Z
We provide a simple method to obtain an upper bound on the secret key rate that is particularly suited to analyze practical realizations of quantum key distribution protocols with imperfect devices. We consider the so-called trusted device scenario where Eve cannot modify the actual detection devices employed by Alice and Bob. The upper bound obtained is based on the available measurements results, but it includes the effect of the noise and losses present in the detectors of the legitimate users.
Seismic reflection data analysis of the Oriente and Swan Fracture Zones bounding the Cayman Trough
Tinker, Mary Norris
1986-01-01T23:59:59.000Z
SEISMIC REFLECTION DATA ANALYSIS OF THE ORIENTE AND SWAN FRACTURE ZONES BOUNDING THE CAYMAN TROUGH A Thesis by MARY NORRIS TINKER Submitted to the Graduate College of Texas A8 M University in partial fulfillment of the requirements... for the degree of MASTER OF SCIENCE May 1986 Major Subject: Geophysics SEISMIC REFLECTION DATA ANALYSIS OF THE ORIENTE AND SWAN FRACTURE ZONES BOUNDING THE CAYMAN TROUGH A Thesis by MARY NORRIS TINKER Approved as to style and content by: D. A. Fa quiet...
Is thermodynamics of the universe bounded by the event horizon a Bekenstein system?
Subenoy Chakraborty
2012-11-12T23:59:59.000Z
In this brief communication, we have studied the validity of the first law of thermodynamics for the universe bounded by event horizon with two examples. The key point is the appropriate choice of the temperature on the event horizon. Finally, we have concluded that universe bounded by the event horizon may be a Bekenstein system and the Einstein's equations and the first law of thermodynamics on the event horizons are equivalent.
On the potential energy in an electrostatically bound two-body system
K. Wilhelm; B. N. Dwivedi
2014-08-30T23:59:59.000Z
The potential energy problem in an electrostatically bound two-body system is studied in the framework of a recently proposed impact model of the electrostatic force and in analogy to the potential energy in a gravitationally bound system. The physical processes are described that result in the variation of the potential energy as a function of the distance between the charged bodies. The energy is extracted from distributions of hypothetical interaction entities modified by the charged bodies.
The Bethe Ansatz for AdS5 x S5 Bound States
M de Leeuw
2009-01-22T23:59:59.000Z
We reformulate the nested coordinate Bethe ansatz in terms of coproducts of Yangian symmetry generators. This allows us to derive the nested Bethe equations for the bound state string S-matrices. We find that they coincide with the Bethe equations obtained from a fusion procedure. The bound state number dependence in the Bethe equations appears through the parameters x^{\\pm} and the dressing phase only.
S. G. Schirmer; J. V. Leahy
2000-10-07T23:59:59.000Z
In this paper we investigate the limits of control for mixed-state quantum systems. The constraint of unitary evolution for non-dissipative quantum systems imposes kinematical bounds on the optimization of arbitrary observables. We summarize our previous results on kinematical bounds and show that these bounds are dynamically realizable for completely controllable systems. Moreover, we establish improved bounds for certain partially controllable systems. Finally, the question of dynamical realizability of the bounds for arbitary partially controllable systems is shown to depend on the accessible sets of the associated control system on the unitary group U(N) and the results of a few control computations are discussed briefly.
Thomas D. Cohen
2005-09-12T23:59:59.000Z
An upper bound is derived for $\\Delta$ for a cold dilute fluid of equal amounts of two species of fermion in the unitary regime $k_f a \\to \\infty$ (where $k_f$ is the Fermi momentum and $a$ the scattering length, and $\\Delta$ is a pairing energy: the difference in energy per particle between adding to the system a macroscopic number (but infinitesimal fraction) of particles of one species compared to adding equal numbers of both. The bound is $\\delta \\leq {5/3} (2 (2 \\xi)^{2/5} - (2 \\xi))$ where $\\xi=\\epsilon/\\epsilon_{\\rm FG}$, $\\delta= 2 \\Delta/\\epsilon_{\\rm FG}$; $\\epsilon$ is the energy per particle and $\\epsilon_{\\rm FG}$ is the energy per particle of a noninteracting Fermi gas. If the bound is saturated, then systems with unequal densities of the two species will separate spatially into a superfluid phase with equal numbers of the two species and a normal phase with the excess. If the bound is not saturated then $\\Delta$ is the usual superfluid gap. If the superfluid gap exceeds the maximum allowed by the inequality phase separation occurs.
ORNL technology transfer continues strong upward trend | ornl...
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
help utilities achieve deeper and broader energy savings from their energy efficiency and demand-response programs. Dry Surface Technologies of Guthrie, Okla, licensed Barrian, a...
Activation of 200 MW refusegenerated CHP upward regulation effect (Smart
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousPlasmaP a gHigh4-FD-a < RAPIDâ€Žcommunication facilities |AAONAMEEAcoustic Logs Jump to:AcruxGrid Project)
Activation of 200 MW refusegenerated CHP upward regulation effect (Smart
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousPlasmaP a gHigh4-FD-a < RAPIDâ€Žcommunication facilities |AAONAMEEAcoustic Logs Jump to:AcruxGrid
UPWARD MOBILITY Section 46a-68-45
Oliver, Douglas L.
Health Center (UCHC) is an organizational commitment in compliance with section 4-61t of the CT General as well as personal development. This commitment is a natural extension of the Health Center's mission contracts that do not allow targeted movement from one unit to another. The majority of positions
The Viscosity Bound Conjecture and Hydrodynamics of M2-Brane Theory at Finite Chemical Potential
Omid Saremi
2006-05-24T23:59:59.000Z
Kovtun, Son and Starinets have conjectured that the viscosity to entropy density ratio $\\eta/s$ is always bounded from below by a universal multiple of $\\hbar$ i.e., $\\hbar/(4\\pi k_{B})$ for all forms of matter. Mysteriously, the proposed viscosity bound appears to be saturated in all computations done whenever a supergravity dual is available. We consider the near horizon limit of a stack of M2-branes in the grand canonical ensemble at finite R-charge densities, corresponding to non-zero angular momentum in the bulk. The corresponding four-dimensional R-charged black hole in Anti-de Sitter space provides a holographic dual in which various transport coefficients can be calculated. We find that the shear viscosity increases as soon as a background R-charge density is turned on. We numerically compute the few first corrections to the shear viscosity to entropy density ratio $\\eta/s$ and surprisingly discover that up to fourth order all corrections originating from a non-zero chemical potential vanish, leaving the bound saturated. This is a sharp signal in favor of the saturation of the viscosity bound for event horizons even in the presence of some finite background field strength. We discuss implications of this observation for the conjectured bound.
Bounds on the interior geometry and pressure profile of static fluid spheres
Damien Martin; Matt Visser
2003-06-10T23:59:59.000Z
It is a famous result of relativistic stellar structure that (under mild technical conditions) a static fluid sphere satisfies the Buchdahl--Bondi bound 2M/R <= 8/9; the surprise here being that the bound is not 2M/R <= 1. In this article we provide further generalizations of this bound by placing a number of constraints on the interior geometry (the metric components), on the local acceleration due to gravity, on various combinations of the internal density and pressure profiles, and on the internal compactness 2m(r)/r of static fluid spheres. We do this by adapting the standard tool of comparing the generic fluid sphere with a Schwarzschild interior geometry of the same mass and radius -- in particular we obtain several results for the pressure profile (not merely the central pressure) that are considerably more subtle than might first be expected.
Security bound of two-basis quantum-key-distribution protocols using qudits
Nikolopoulos, Georgios M.; Alber, Gernot [Institut fuer Angewandte Physik, Technische Universitaet Darmstadt, 64289 Darmstadt (Germany)
2005-09-15T23:59:59.000Z
We investigate the security bounds of quantum-cryptographic protocols using d-level systems. In particular, we focus on schemes that use two mutually unbiased bases, thus extending the Bennett-Brassard 1984 quantum-key-distribution scheme to higher dimensions. Under the assumption of general coherent attacks, we derive an analytic expression for the ultimate upper security bound of such quantum-cryptography schemes. This bound is well below the predictions of optimal cloning machines. The possibility of extraction of a secret key beyond entanglement distillation is discussed. In the case of qutrits we argue that any eavesdropping strategy is equivalent to a symmetric one. For higher dimensions such an equivalence is generally no longer valid.
Light-Front Dynamic Analysis of Bound States in Scalar Field Model
Chueng-Ryong Ji; Yukihisa Tokunaga
2012-05-16T23:59:59.000Z
The light-front dynamics (LFD) of the scalar field model theory is analyzed to solve the two-body bound-state problem. The light-front two-body bound-state equation is extended to the full LFD kernel including the ladder, cross-ladder, stretched-box, and particle-antiparticle creation/annihilation effects to study the contributions of higher Fock-states. The light-front two-body equation is also modified by the term corresponding to the self-energy corrections and counter-terms. Using the variational principle, we obtain the numerical result of the binding energy B versus the coupling constant \\alpha\\ for various mass ratios of the constituent particles including the cases of non-zero exchange particle mass. We also discuss the correlation between the mass spectrum and the corresponding bound-state wavefunction.
Rigorous bounds of the Lyapunov exponents of the one-dimensional random Ising model
Pasquini, M.; Paladin, G.; Serva, M. [Universita dell`Aquila, L`Aquila (Italy)
1995-07-01T23:59:59.000Z
We find analytic upper and lower bounds of the Lyapunov exponents of the product of random matrices related to the one-dimensional disordered Ising model, using a deterministic map which transforms the original system into a new one with smaller average couplings and magnetic fields. The iteration of the map gives bounds which estimate the Lyapunov exponents with increasing accuracy. We prove, in fact, that both the upper and the lower bounds converge to the Lyapunov exponents in the limit of infinite iterations of the map. A formal expression of the Lyapunov exponents is thus obtained in terms of the limit of a sequence. Our results allow us to introduce a new numerical procedure for the computation of the Lyapunov exponents which has a precision higher than Monte Carlo simulations.
Lower Bounds on Q for Finite Size Antennas of Arbitrary Shape
Kim, Oleksiy S
2015-01-01T23:59:59.000Z
The problem of the lower bound on the radiation Q for an arbitrarily shaped finite size antenna of non-zero volume is formulated in terms of equivalent electric and magnetic currents densities distributed on a closed surface coinciding with antenna exterior surface. When these equivalent currents radiate in free space, the magnetic current augments the electric current, so that the fields interior to the surface vanish. In contrast to approaches based solely on electric currents, the proposed technique ensures no stored energy interior to the antenna exterior surface, and thus, allows the fundamental lower bound on Q to be determined. To facilitate the computation of the bound, new expressions for the stored energy, radiated power, and Q of coupled electric and magnetic source currents in free space are derived.
The Mayer series of the Lennard-Jones gas: improved bounds for the convergence radius
Bernardo N. B. de Lima; Aldo Procacci
2014-08-04T23:59:59.000Z
We provide a lower bound for the convergence radius of the Mayer series of the Lennard-Jones gas which strongly improves on the classical bound obtained by Penrose and Ruelle 1963. To obtain this result we use an alternative estimate recently proposed by Morais et al. (J. Stat. Phys. 2014) for a restricted class of stable and tempered pair potentials (namely those which can be written as the sum of a non-negative potential plus an absolutely integrable and stable potential) combined with a method developed by Locatelli and Schoen (J. Glob. Optim. 2002) for establishing a lower bound for the minimal interatomic distance between particles interacting via a Morse potential in a cluster of minimum-energy configurations.
Higgs boson mass bounds in the presence of a heavy fourth quark family
John Bulava; Philipp Gerhold; Karl Jansen; Jim Kallarackal; Attila Nagy
2013-01-16T23:59:59.000Z
We present Higgs boson mass bounds in a lattice regularization allowing thus for non-perturbative investigations. In particular, we employ a lattice modified chiral invariant Higgs-Yukawa model using the overlap operator. We show results for the upper and lower Higgs boson mass bounds in the presence of a heavy mass-degenerate quark doublet with masses ranging up to 700 GeV. We perform infinite volume extrapolations in most cases, and examine several values of the lattice cutoff. Furthermore, we argue that the lower Higgs boson mass bound is stable with respect to the addition of higher dimensional operators to the scalar field potential. Our results have severe consequences for the phenomenology of a fourth generation of quarks if a light Higgs boson is discovered at the LHC.
Efficiency bounds for quantum engines powered by non-thermal baths
Wolfgang Niedenzu; David Gelbwaser-Klimovsky; Abraham G. Kofman; Gershon Kurizki
2015-08-26T23:59:59.000Z
We analyse the operation principles and performance bounds of quantum engines whose working fluid (WF) is energised by a non-thermal bath. We show that such a bath (e.g., a squeezed or coherently displaced thermal bath) can render the WF state non-passive, i.e., capable of storing and delivering work. This non-passivity converts the heat engine into a thermo-mechanical machine that is powered by mechanical work, as well as heat, from the non-thermal bath. Its efficiency is unrestricted by the Carnot bound, which only applies to heat engines. By contrast, for certain WF--bath interactions and non-thermal bath states the WF thermalises. The machine then operates as a heat engine, but its Carnot bound may correspond to a higher temperature than its thermal-bath counterpart.
The Bound State S-Matrix for AdS5 x S5 Superstring
Gleb Arutyunov; Marius de Leeuw; Alessandro Torrielli
2011-08-24T23:59:59.000Z
We determine the S-matrix that describes scattering of arbitrary bound states in the light-cone string theory in AdS5 x S5. The corresponding construction relies on the Yangian symmetry and the superspace formalism for the bound state representations. The basic analytic structure supporting the S-matrix entries turns out to be the hypergeometric function 4F3. We show that for particular bound state numbers it reproduces all the scattering matrices previously obtained in the literature. Our findings should be relevant for the TBA and Luescher approaches to the finite-size spectral problem. They also shed some light on the construction of the universal R-matrix for the centrally-extended psu(2|2) superalgebra.
Extension of the Parker bound on the flux of magnetic monopoles
Adams, F.C.; Fatuzzo, M.; Freese, K.; Tarle, G.; Watkins, R. (Department of Physics, University of Michigan, Ann Arbor, Michigan 48109-1120 (United States)); Turner, M.S. (Departments of Physics and Astronomy and Astrophysics, The University of Chicago, Chicago, Illinois 60637-1433 (United States) NASA/Fermilab Astrophysics Center, Fermi National Accelerator Laboratory, Batavia, Illinois 60510-0500 (United States))
1993-04-26T23:59:59.000Z
An extension of the Parker bound on the flux [ital scrF] of magnetic monopoles leads to a stronger bound than obtained previously. The survival and growth of a small galactic seed field requires [ital scrF][le]10[sup [minus]16]([ital m]/10[sup 17] GeV) cm[sup [minus]2] s[sup [minus]1] sr[sup [minus]1]. This new limit rules out the possibility that monopoles much lighter than 10[sup 17] GeV/[ital c][sup 2] can provide the closure density of the Universe.
Unitarity bounds and RG flows in time dependent quantum field theory
Xi Dong; Bart Horn; Eva Silverstein; Gonzalo Torroba
2012-03-08T23:59:59.000Z
We generalize unitarity bounds on operator dimensions in conformal field theory to field theories with spacetime dependent couplings. Below the energy scale of spacetime variation of the couplings, their evolution can strongly affect the physics, effectively shifting the infrared operator scaling and unitarity bounds determined from correlation functions in the theory. We analyze this explicitly for large-$N$ double-trace flows, and connect these to UV complete field theories. One motivating class of examples comes from our previous work on FRW holography, where this effect explains the range of flavors allowed in the dual, time dependent, field theory.
Unitarity Bounds and RG Flows in Time Dependent Quantum Field Theory
Dong, Xi; Horn, Bart; Silverstein, Eva; Torroba, Gonzalo; /Stanford U., ITP /Stanford U., Phys. Dept. /SLAC
2012-04-05T23:59:59.000Z
We generalize unitarity bounds on operator dimensions in conformal field theory to field theories with spacetime dependent couplings. Below the energy scale of spacetime variation of the couplings, their evolution can strongly affect the physics, effectively shifting the infrared operator scaling and unitarity bounds determined from correlation functions in the theory. We analyze this explicitly for large-N double-trace flows, and connect these to UV complete field theories. One motivating class of examples comes from our previous work on FRW holography, where this effect explains the range of flavors allowed in the dual, time dependent, field theory.
A Model-Free No-arbitrage Price Bound for Variance Options
Bonnans, J. Frederic, E-mail: frederic.bonnans@inria.fr [Ecole Polytechnique, INRIA-Saclay (France); Tan Xiaolu, E-mail: xiaolu.tan@polytechnique.edu [Ecole Polytechnique, CMAP (France)
2013-08-01T23:59:59.000Z
We suggest a numerical approximation for an optimization problem, motivated by its applications in finance to find the model-free no-arbitrage bound of variance options given the marginal distributions of the underlying asset. A first approximation restricts the computation to a bounded domain. Then we propose a gradient projection algorithm together with the finite difference scheme to solve the optimization problem. We prove the general convergence, and derive some convergence rate estimates. Finally, we give some numerical examples to test the efficiency of the algorithm.
Bounds on the outage-constrained capacity region of space-division multiple-access radio systems
Jin, Haipeng; Acampora, A
2004-01-01T23:59:59.000Z
Broadcast Channels - Part I: Outage Capacity,” IEEE Trans.Bounds on the Outage-Constrained Capacity Region of Spacethe capacity limit as an outage region rates contained
Bounds on the Nonminimal Coupling of the Higgs Boson to Gravity
Michael Atkins; Xavier Calmet
2013-02-01T23:59:59.000Z
We derive the first bound on the value of the Higgs boson non-minimal coupling to the Ricci scalar. We show that the recent discovery of the Higgs boson at the Large Hadron Collider at CERN implies that the non-minimal coupling is smaller than $2.6\\times 10^{15}$.
Bounding the Higgs width at the LHC: complementary results from H?WW
Campbell, John M.; Ellis, R. Keith; Williams, Ciaran
2014-03-01T23:59:59.000Z
We investigate the potential of the process gg ? H? WW to provide bounds on the Higgs width. Recent studies using off-shell H? ZZ events have shown that Run 1 LHC data can constrain the Higgs width, $\\Gamma_H < (25-45) \\Gamma_{H}^{\\rm SM}$. Using 20 fb-1 of 8 TeV ATLAS data, we estimate a bound on the Higgs boson width from the WW channel between $\\Gamma_H < (100-500) \\Gamma_H^{SM}$. The large spread in limits is due to the range of cuts applied in the existing experimental analysis. The stricter cuts designed to search for the on-shell Higgs boson limit the potential number of off-shell events, weakening the constraints. As some of the cuts are lifted the bounds improve. We show that there is potential in the high transverse mass region to produce upper bounds of the order of $(25-50) \\Gamma_H^{SM}$, depending strongly on the level of systematic uncertainty that can be obtained. Thus, if these systematics can be controlled, a constraint on the Higgs boson width from the H ? WW$ decay mode can complement a corresponding limit from H ? ZZ.
A New Expression for 3N Bound State Faddeev Equation in a 3D Approach
M. Harzchi; S. Bayegan
2011-06-27T23:59:59.000Z
A spin-isospin dependent three-dimensional approach has been applied for formulation of the three-nucleon bound state and a new expression for Faddeev equation based on three-nucleon free basis state has been obtained. Then the three-nucleon wave function has been obtained as a function of five independent variables.
Jet Interaction and the Influence of a Minimum Phase Speed Bound on the Propagation of Eddies
Vallis, Geoff
Jet Interaction and the Influence of a Minimum Phase Speed Bound on the Propagation of Eddies and analogs of the midlatitude eddy-driven jet and the subtropical jet is investigated in a barotropic b-plane model. In the model the subtropical jet is generated by a relaxation process and the eddy-driven jet
H-measures and bounds on the e ective properties of composite materials
Maillot, HervÃ©
H-measures and bounds on the e#11;ective properties of composite materials Gr#19;egoire ALLAIRE- ory in the study of e#11;ective properties of two-phase composite materials. The notion of H of composite materials is to characterize the range of e#11;ective (or macroscopic) properties of such mixtures
Bounds on the Solar Antineutrino total Flux and Energy spectrum from the SK experiment
E. Torrente-Lujan
1999-11-23T23:59:59.000Z
A search for inverse beta decay electron antineutrinos has been carried out using the 825 days sample of solar data obtained at SK. The absence of a significant signal, that is, contributions to the total SK background and their angular variations has set upper bounds on a) the absolute flux of solar antineutrinos originated from ${}^8 B$ neutrinos $\\Phi_{\\bar{\
Upper and lower Higgs boson mass bounds from a chirally invariant lattice Higgs-Yukawa model
Upper and lower Higgs boson mass bounds from a chirally invariant lattice Higgs-Yukawa model of the Standard Model Higgs boson based on first principle calculations, in par- ticular not relying on additional for the intended Higgs boson mass determination. These are the complex Higgs doublet as well as the top and bottom
Numerical solution of eddy current problems in bounded domains using realistic boundary
RodrÃguez, Rodolfo
Numerical solution of eddy current problems in bounded domains using realistic boundary conditions-called eddy currents. The problem is formulated in terms of the magnetic field. This formulation in a metallurgical arc furnace. Key words: low-frequency harmonic Maxwell equations, eddy current problems, finite
Physica B 394 (2007) 357362 Complex bounds and microstructural recovery from measurements
Golden, Kenneth M.
2007-01-01T23:59:59.000Z
Sea ice is a porous composite of pure ice with brine, air, and salt inclusions. The polar sea ice. The sea ice is assumed to be a two phase composite of ice and brine with known constituent permittivities. The first set of bounds assumes only knowledge of the brine volume fraction or porosity, and the second set
Paris-Sud XI, Université de
crucial issues, mainly dynamic adaptive load balancing, fault tolerance, global informa- tion sharing NP-hard and complex. The Branch and Bound (B&B) algorithm is one of the most popular methods to solve to the characteristics of the model itself and the properties of the grids. The major of these issues are load balancing
Design of a Norm-Bounded LQG Controller for Power Distribution Networks with Distributed Generation
Pota, Himanshu Roy
. Therefore, control of modern electric power systems becomes more and more challenging as the present trends control is essential. Moreover, induction motor loads account for a large portion of domestic loadsDesign of a Norm-Bounded LQG Controller for Power Distribution Networks with Distributed Generation
Merhav, Neri
An Identity of Chernoff Bounds with an Interpretation in Statistical Physics and Applications in statistical physics, namely, an isothermal equilibrium of a composite system that consists of multiple interpretation. This results in several relationships between information theory and statistical physics, which
A Bound on Binding Energies and Mass Renormalization in Models of Quantum
A Bound on Binding Energies and Mass Renormalization in Models of Quantum Electrodynamics Elliott H: the #12;rst uses the kinetic energy (p + eA(x)) 2 and the second uses the Pauli-Fierz energy (p + eA(x)) 2 + e#27; #1; B(x). The third, no-pair model, is relativistic and replaces the kinetic energy
Bounds on Timing Jitter Estimation in Cooperative Hani Mehrpouyan and Steven Blostein
Blostein, Steven D.
Bounds on Timing Jitter Estimation in Cooperative Networks Hani Mehrpouyan and Steven Blostein networks require accurate estimation of multiple timing jitters. When combined with signal processing algorithms the esti- mated timing jitters can be applied to mitigate the resulting inter- symbol interference
Data-Dependent Jitter and Crosstalk-Induced Bounded Uncorrelated Jitter in Copper Interconnects
Hajimiri, Ali
Data-Dependent Jitter and Crosstalk-Induced Bounded Uncorrelated Jitter in Copper Interconnects Abstract -- This paper resolves the jitter impairment of non-return-to-zero data in transmission lines. The limited bandwidth of the transmission line introduces data- dependent jitter. Crosstalk between
Error Bounds from Extra-Precise Iterative JAMES DEMMEL, YOZO HIDA, and WILLIAM KAHAN
Li, Xiaoye Sherry
prevented its adoption in standard subroutine libraries like LAPACK: (1) There was no standard way to access error bound for the computed solution. The completion of the new BLAS Technical Forum Standard has was supported in part by the NSF Cooperative Agreement No. ACI-9619020; NSF Grant Nos. ACI-9813362 and CCF
Two Branch & Bound Methods for a Generalized Class of Location-Allocation
Gugat, Martin
Two Branch & Bound Methods for a Generalized Class of Location-Allocation Problems Martin Bischoff a generalized class of location-allocation problems, in which N new facilities are to be located in the plane with respect to M objects. We assume each object to be associated with a non-negative convex cost function
A Cognitively Bounded Rational Analysis Model of Dual-Task Performance Trade-Offs
Saunders, Mark
A Cognitively Bounded Rational Analysis Model of Dual-Task Performance Trade-Offs Christian P of interleaving two tasks can be described as making trade-offs between performance on each of the tasks. This can. An objective payoff function was used to describe how participants should trade-off performance between
Nicchitta, Chris
Termination of Protein Synthesis* Received for publication, March 15, 2002, and in revised form, April 18 pathway and dissociation occurring upon the termination of protein synthesis. Recent stud- ies indicate, however, that ribosomal subunits remain membrane-bound following the termination of protein synthesis
Bounds for the Distance Dependence of Correlation Functions of Entangled Photons in Waveguides
Andrei Khrennikov; Borje Nilsson; Sven Nordebo; Igor Volovich
2011-05-30T23:59:59.000Z
The distance dependence of the probability of observing two photons in a waveguide is investigated. The Glauber correlation functions of the entangled photons in waveguides are considered and the spatial and temporal dependence of the correlation functions is evaluated. We derive upper bounds to the distance dependence of the probability of observing two photons. These inequalities should be possible to observe in experiments.
A baby steps/giant steps probabilistic algorithm for computing roadmaps in smooth bounded real
Safey El Din, Mohab
A baby steps/giant steps probabilistic algorithm for computing roadmaps in smooth bounded real of constructing roadmaps of real algebraic sets. This problem was introduced by Canny to answer connectivity, with an algorithm of deterministic cost sd+1 DO(n2) for the more general problem of computing roadmaps of a semi
STEPHENS, L.S.
2003-03-21T23:59:59.000Z
This analysis calculates the offsite radiological consequence of the bounding unplanned excavation/drilling of 200 Area soils accident. The US. Department of Energy (DOE) standard DOE-STD-3009-94, ''Preparation Guide for U.S. Department of Energy Nonreactor Nuclear Facility Documented Safety Analyses'', requires the formal quantification of a limited subset of accidents representing a complete set of bounding conditions. The results of these analyses are then evaluated to determine if they challenge the DOE-STD-3009-94 Appendix A, ''Evaluation Guideline,'' of 25 rem total effective dose equivalent to identify and evaluate safety-class structures, systems, and components. This document supports the development of the unplanned excavation/drilling of 200 Area soils accident in the tank farm documented safety analysis. Consequently, it: (1) Provides a comprehensive review of potential unplanned excavation scenarios (i.e., backhoe, buried pressurized line ruptures, drilling, Guzzler vacuum) to determine the representative activity that would bound unmitigated, unplanned, or inadvertent excavations of 200 Area soils. (2) Evaluates radiological isotope inventories of all current Tank Farm Contractor (TFC) liquid waste disposal sites [i.e., cribs, ditches, and ponds (including French drains)], and isotope inventories of unplanned release sites (UPR) and plume columns. (3) Establishes the radiological consequences to the maximum offsite individual (MOI) from an unplanned/inadvertent 200 Area soil disturbance based on bounding site development and representative accident determination.
Variational representations for the Parisi functional and the two-dimensional Guerra-Talagrand bound
Wei-Kuo Chen
2015-01-27T23:59:59.000Z
The validity of the Parisi formula in the Sherrington-Kirkpatrick (SK) model was initially proved by Talagrand [12]. The central argument relied on a careful study of the coupled free energy using the Guerra-Talagrand (GT) replica symmetry breaking bound. It is believed that this bound is highly related to the conjectures of chaos and ultrametricity in the SK model, but a completely investigation is still far from been reached. Motivated by the theory of optimal stochastic control, we present a new approach to analysing the Parisi functional and the two-dimensional GT bound in the mixed p-spin model. We first compute the directional derivative of the Parisi functional and obtain equivalent criteria for the Parisi measure. Next we demonstrate how our approach provides an efficient control for the GT bound and yield several results on the positivity of the overlap and disorder chaos problem. In particular, these include new examples of the models containing odd p-spin interactions.
Newtonian systems, bounded in space, time, mass and energy can compute all functions1
Martin, Ralph R.
Newtonian systems, bounded in space, time, mass and energy can compute all functions1 E.J. Beggs2 a theoretical analysis of computation by physical systems. We focus on the role of simple examples in space, time, mass and energy can compute all possible functions on discrete data. The system is a form
Boyer, Edmond
strategies based on anaerobic energy and variations of velocity J. Fr´ed´eric Bonnans Inria-Saclay and CMAP of running strategies hal-01024231,version1-15Jul2014 #12;Keller's model Variable energy recreation Bounding.F. Bonnans, Optimization of running strategies based on anaerobic energy and variations of velocity. SIAM J
The static electric polarizability of a particle bound by a finite potential well
M. A. Maize; M. A. Antonacci
2010-02-23T23:59:59.000Z
In this paper we derive an expression for the static electric polarizability of a particle bound by a finite potential well without the explicit use of the continuum states in our calculations. This will be accomplished by employing the elegant Dalgarno-Lewis perturbative technique.
Acidity and catalytic activity of zeolite catalysts bound with silica and alumina
Wu, Xianchun
2004-09-30T23:59:59.000Z
-framework alumina in zeolites to form a new protonic acid. SiO2-bound catalysts have less strong acidity, Bronsted acidity and Lewis acidity than the zeolite powder. Also, the strength of strong acid sites of the zeolites is reduced when silica is embedded...
Tartakovsky, Daniel M.
soils Zhiming Lu and Shlomo P. Neuman Department of Hydrology and Water Resources, University of Arizona 26 April 2002. [1] We consider steady state unsaturated flow in bounded, randomly heterogeneous soils that the solution may remain asymptotic for values of sY 2 as large as 2. INDEX TERMS: 1866 Hydrology: Soil moisture
Resource-bounded Continuity and Sequentiality for Type-two Functionals
Kapron, Bruce
Resource-bounded Continuity and Sequentiality for Type-two Functionals SAMUEL R. BUSS University powerful then sequentiality when the quantitative consideration of Samuel R. Buss, Department Transactions on Computational Logic, Vol. TBD, No. TBD, TBD 20TBD, Pages 1{15. #12; 2 #1; S.R. Buss and B
Folding minimal sequences: the lower bound for sequence complexity of globular proteins
Obradovic, Zoran
Folding minimal sequences: the lower bound for sequence complexity of globular proteins Pedro of sequence complexity, are herein applied to two prior studies on the folding of minimal proteins.9. These values are therefore suggested to be necessary and sufficient for folding into globular proteins having
THE LIMITS OF BUFFERING: A TIGHT LOWER BOUND FOR DYNAMIC MEMBERSHIP IN THE EXTERNAL MEMORY MODEL
Zhang, Qin
. Our result holds even when the updates and queries are chosen uniformly at random and there are no deletions; it holds for randomized data structures, holds when the universe size is O(n), and does not make any restrictive assumptions such as indivisibility. All of the lower bounds we prove hold regardless
A new interpretation of the proton-neutron bound state. The calculation of the binding energy
N. B. Mandache
1996-12-01T23:59:59.000Z
We treat the old problem of the proton-neutron bound state (the deuteron). Using a new concept of incomplete (partial) annihilation process we derive a formula for the binding energy of the deuteron, which does not contain any new constant. Some implications of this new approach are discussed.
SMT-Based Bounded Model Checking for Embedded ANSI-C Software
1 SMT-Based Bounded Model Checking for Embedded ANSI-C Software Lucas Cordeiro, Bernd Fischer software written in ANSI-C in order to improve scalability and precision in a completely automatic way. We was provided for ANSI-C [5] constructs such as bit-level operations, fixed- point arithmetic, pointers (i
SMT-Based Bounded Model Checking for Embedded ANSI-C Software Lucas Cordeiro
SMT-Based Bounded Model Checking for Embedded ANSI-C Software Lucas Cordeiro University to the verification of embedded soft- ware written in ANSI-C. We have extended the encod- ings from previous SMT and linear arithmetic were considered, but no encoding was provided for ANSI-C [6] constructs such as bit
Free Will and the Bounds of the Self1 [Forthcoming in Robert Kane, ed. Oxford Handbook
Knobe, Joshua
1 Free Will and the Bounds of the Self1 [Forthcoming in Robert Kane, ed. Oxford Handbook of Free of Arizona If you start taking courses in contemporary cognitive science, you will soon encounter is fundamentally confused or wrongheaded. They think that the confusion here can be cleared up just by saying
A General Result on the Stabilization of Linear Systems Using Bounded Controls1
Sontag, Eduardo
A General Result on the Stabilization of Linear Systems Using Bounded Controls1 HÂ´ector J. Sussmann that globally stabilize linear systems subject to control saturation. We allow essentially arbitrary saturation- braic) linear control theory, but are ubiquitous in control applications. To quote the recent textbook
Optimal control of constrained, piecewise affine systems with bounded disturbances1
Cambridge, University of
on the robust optimal control of linear systems to the class of piecewise affine systems. The ex- tensionOptimal control of constrained, piecewise affine systems with bounded disturbances1 Eric C stabilising. Key words: piecewise linear, constraints, optimal control, receding horizon control, model
The Speed Bounds on Event Reporting in Mobile Sensor Networks with Energy Constraints
Wang, Wenye
The Speed Bounds on Event Reporting in Mobile Sensor Networks with Energy Constraints Yi Xu network response delay. However, due to the sensor mobility and the energy limitation, fast report and Wenye Wang Department of Electrical and Computer Engineering North Carolina State University Raleigh, NC
Bound Together: Masters and Slaves on the Kansas-Missouri Border, 1825-1865
Epps, Kristen Kimberly
2010-04-20T23:59:59.000Z
“Bound Together” chronicles the rise and fall of the slave system on the Kansas-Missouri border from the earliest years of American settlement in the 1820s to the end of the Civil War. This work uses nineteen counties along ...
Lower Bounds on the Communication Complexity of Shifting Marco D. Adelfio
in Computer Science Dartmouth College June 2, 2005 #12;Contents 1 Introduction 1 1.1 Communication Complexity bits of communication for an input of size n bits and this protocol can be applied to any function. SoLower Bounds on the Communication Complexity of Shifting Marco D. Adelfio Advisor: Amit Chakrabarti
Lower Bounds on the Communication Complexity of Shifting Marco D. Adelfio
Chakrabarti, Amit
in Computer Science Dartmouth College June 2, 2005 #12; Contents 1 Introduction 1 1.1 Communication Complexity requires n bits of communication for an input of size n bits and this protocol can be applied to anyLower Bounds on the Communication Complexity of Shifting Marco D. Adelfio Advisor: Amit Chakrabarti
Detection of Design Flaws in the Android Permission Protocol through Bounded
Jackson, Daniel
Detection of Design Flaws in the Android Permission Protocol through Bounded Verification Hamid of the permission protocol implemented in Android, a popular OS for smartphones. We propose a formal model of the Android permission protocol in Alloy, and describe a fully automatic analysis that identifies potential
A Branch-and-Bound Algorithm for the Quadratic Assignment Problem Based on the Hungarian Method
the Linear Assignment Problem. Our DP solves the QAP in certain cases, i.e., for some small problems (N Assignment Problem, Branch-and-bound, Quadratic Programming, Integer Programming, Mathematical Programming, which has roots in the Hungarian algorithm (see Munkres [21]) which solves the linear assignment problem
Bound on Bell Inequalities by Fraction of Determinism and Reverse Triangle Inequality
P. Joshi; K. Horodecki; M. Horodecki; P. Horodecki; R. Horodecki; Ben Li; S. J. Szarek; T. Szarek
2015-02-10T23:59:59.000Z
It is an established fact that entanglement is a resource. Sharing an entangled state leads to non-local correlations and to violations of Bell inequalities. Such non-local correlations illustrate the advantage of quantum resources over classical resources. Here, we study quantitatively Bell inequalities with $2\\times n$ inputs. As found in [N. Gisin et al., Int. J. Q. Inf. 5, 525 (2007)] quantum mechanical correlations cannot reach the algebraic bound for such inequalities. In this paper, we uncover the heart of this effect which we call the {\\it fraction of determinism}. We show that any quantum statistics with two parties and $2 \\times n$ inputs exhibits nonzero fraction of determinism, and we supply a quantitative bound for it. We then apply it to provide an explicit {\\it universal upper bound} for Bell inequalities with $2\\times n$ inputs. As our main mathematical tool we introduce and prove a {\\it reverse triangle inequality}, stating in a quantitative way that if some states are far away from a given state, then their mixture is also. The inequality is crucial in deriving the lower bound for the fraction of determinism, but is also of interest on its own.
Big Bang Nucleosynthesis with Bound States of Long-lived Charged Particles
Manoj Kaplinghat; Arvind Rajaraman
2007-01-18T23:59:59.000Z
Charged particles (X) decaying after primordial nucleosynthesis are constrained by the requirement that their decay products should not change the light element abundances drastically. If the decaying particle is negatively charged (X-) then it will bind to the nuclei. We consider the effects of the decay of X when bound to Helium-4 and show that this will modify the Lithium abundances.
Capacity-Achieving Accumulate-Repeat-Accumulate Codes for the BEC with Bounded Complexity
Sason, Igal
Capacity-Achieving Accumulate-Repeat-Accumulate Codes for the BEC with Bounded Complexity Igal-Achieving Codes and Complexity 2 Accumulate-Repeat-Accumulate Codes 3 Simulations 4 Symmetry, Duality, and New Transmission Rates Cheaper Systems Why Accumulate-Repeat-Accumulate (ARA) Codes ? They can provide better
Two definitions of the electric polarizability of a bound system in relativistic quantum theory
F. A. B. Coutinho; Y. Nogami; Lauro Tomio
1998-12-24T23:59:59.000Z
For the electric polarizability of a bound system in relativistic quantum theory, there are two definitions that have appeared in the literature. They differ depending on whether or not the vacuum background is included in the system. A recent confusion in this connection is clarified.
Lyapunov Exponents of Brownian Motion: Decay Rates for Scaled Poissonian Potentials and Bounds
Ould Ahmedou, Mohameden
Lyapunov Exponents of Brownian Motion: Decay Rates for Scaled Poissonian Potentials and Bounds Johannes Rueß Universit¨at T¨ubingen Abstract: We investigate Lyapunov exponents of Brownian motion in a nonnegative Poissonian potential V . The Lyapunov exponent depends on the potential V and our interest lies
Coding for Wireless Relay Networks Alphabet Soups and the Network Cutlet Bound
California at San Diego, University of
Coding for Wireless Relay Networks Alphabet Soups and the Network Cutlet Bound Young-Han Kim, 2015 #12;Theorem 1 history of communication = history of wireless #12;Japanese scientists dug 50 meters ago had cellular telephones. #12;Theorem 2 history of wireless = history of relaying #12;#12;#12;#12
California at San Diego, University of
orbital angular momentum J, and zero net spin i.e., it is a singlet state 2 . Furthermore a positronMagnetically bound states of electronic and positronic hydrogen ions: The case of zero orbital in a uniform magnetic field B, concentrating on states with zero orbital angular momentum J. It is shown
Grid Monitoring: Bounds on Performances of Sensor Placement Algorithms Muhammad Uddin
Kavcic, Aleksandar
matrix, we use a linear minimum mean squared error estimator as the state estimator to formulate the PMU test systems, showing that the proposed bounds provide a valid basis for determining the quality iterative algorithms [3]. The PMUs, on the other hand, can directly measure the states at the PMU
Minimum Buffered Routing with Bounded Capacitive Load for Slew Rate and Reliability Control
Zelikovsky, Alexander
reliability with respect to hotcarrier oxide breakdown and AC selfheating in interconnects, and guarantees electrons) [10], [12] and AC selfheating in interconnects [20], and facilitate technology migration since capacitance at gate outputs is a wellknown part of today's electrical correctness methodologies. Bounds
Bounds on codes from smooth toric threefolds with rank(pic(x)) = 2
Kimball, James Lee
2009-05-15T23:59:59.000Z
corresponding to smooth toric surfaces with rank(Pic(X)) = 2 and rank(Pic(X)) = 3. Additionally, they gave upper and lower bounds on the minimum distance of an arbitrary toric code CP by finding a subpolygon of P with a maximal, nontrivial Minkowski sum...
GURUSWAMI, H ASTAD, SUDAN, AND ZUCKERMAN 1 Combinatorial Bounds for List Decoding
Sudan, Madhu
GURUSWAMI, H Â°ASTAD, SUDAN, AND ZUCKERMAN 1 Combinatorial Bounds for List Decoding Venkatesan Guruswami Johan HÂ°astad Madhu Sudan David Zuckerman Abstract--Informally, an error-correcting code has "nice. Madhu Sudan's address is Laboratory for Computer Science, 200 Tech- nology Square, Cambridge, MA 02139
GURUSWAMI, H ASTAD, SUDAN, AND ZUCKERMAN 1 Combinatorial Bounds for List Decoding
HÃ¥stad, Johan
GURUSWAMI, H Â°ASTAD, SUDAN, AND ZUCKERMAN 1 Combinatorial Bounds for List Decoding Venkatesan Guruswami Johan HÂ°astad Madhu Sudan David Zuckerman Abstract-- Informally, an error-correcting code has. Madhu Sudan's address is Laboratory for Computer Science, 200 Technology Square, Cambridge, MA 02139
Information Theoretic Bounds on Authentication Systems in Query Reihaneh Safavi-Naini Peter Wild
International Association for Cryptologic Research (IACR)
Information Theoretic Bounds on Authentication Systems in Query Model Reihaneh Safavi-Naini Peter Wild School of IT and CS Information Security Group University of Wollongong Royal Holloway University Authentication codes provide message integrity guarantees in an information theoretic sense within a symmetric
Information Theoretic Bounds on Authentication Systems in Query Reihaneh SafaviNaini Peter Wild
International Association for Cryptologic Research (IACR)
Information Theoretic Bounds on Authentication Systems in Query Model Reihaneh SafaviNaini Peter Wild School of IT and CS Information Security Group University of Wollongong Royal Holloway University Authentication codes provide message integrity guarantees in an information theoretic sense within a symmetric
The Upper Bound of Capacity for A Concurrent-transmission-based Ad-hoc Network
Tseng, Yu-Chee
1 The Upper Bound of Capacity for A Concurrent-transmission-based Ad-hoc Network with Single National Chiao-Tung University, Hsin-Chu, 30010 Taiwan Department of Communication Engineering National Chiao-Tung University, Hsin-Chu, 30010 Taiwan Department of Information and Computer Engineering Chung
Proton transfer from the bulk to the bound ubiquinone QB of the reaction center in
Steinhoff, Heinz-Jürgen
Proton transfer from the bulk to the bound ubiquinone QB of the reaction center in chromatophores, 1999) The mechanism of proton transfer from the bulk into the mem- brane protein interior was studied is accompanied by proton trapping. We used kinetic spec- troscopy to measure (i) the electron transfer to QB (at
Mechanism Design for Resource Bounded Noa E. KfirDahav Dov Monderer Moshe Tennenholtz
Sandholm, Tuomas W.
Mechanism Design for Resource Bounded Agents Noa E. KfirÂDahav Dov Monderer Moshe Tennenholtz, Israel January 19, 1999 Abstract The theory of mechanism design deals with the design of protoÂ cols that will maximize the social welfare of the agents. An ideal mechanism will optimize social welfare
Mechanism Design for Resource Bounded International Conference on Multi-Agent Systems, ICMAS 2000
Monderer, Dov
Mechanism Design for Resource Bounded Agents International Conference on Multi-Agent Systems, ICMAS of mechanism design deals with the design of proto- cols for non-cooperative multi-agent systems. A major task of this theory is the design of protocols that will maximize the social welfare of the agents. An ideal mechanism
Handling parameter ranking, equalities and bounds in adaptive control of blending
be formulated in various applications where non- reactive components are blended and linearly impactHandling parameter ranking, equalities and bounds in adaptive control of blending systems Mériam in the production of com- mercial fuels by blending. The control problem under consideration is a multi
BIG: A ResourceBounded Information Gathering and Decision Support Agent \\Lambday
Zhang, Xiaoqin
BIG: A ResourceBounded Information Gathering and Decision Support Agent \\Lambday Victor Lesser an invaluable information resource but the explosion of available information has made web search a time of accessibility, reliability and associated costs present a complex information gathering coordination problem
BIG: A Resource-Bounded Information Gathering and Decision Support Agent y
Massachusetts at Amherst, University of
BIG: A Resource-Bounded Information Gathering and Decision Support Agent y Victor Lesser Bryan an invaluable information resource but the explosion of available information has made web search a time of accessibility, reliability and associated costs present a complex information gathering coordination problem
BIG: A Resource-Bounded Information Gathering and Decision Support Agent
Raja, Anita
BIG: A Resource-Bounded Information Gathering and Decision Support Agent ¡ Victor Lesser Bryan an invaluable information resource but the explosion of available information has made web search a time of accessibility, reliability and associated costs present a complex information gathering coordination problem
Sharp Uniform Bounds for Steady Potential Fluid-Poisson Systems Irene M. Gamba1
, for the potential hydrodynamic{Poisson systems, cavitation speed is a function that depends on the potential ow consider steady potential hydrodynamic-Poisson system with a dissipation term (viscosity) proportional is bounded pointwise, at points x0 in the interior of the ow domain, by cavitation speed (given by Bernoulli
Acidity and catalytic activity of zeolite catalysts bound with silica and alumina
Wu, Xianchun
2004-09-30T23:59:59.000Z
. Micropore surface area and micropore volume are reduced by about 19% and 18%, respectively, indicating some micropores of ZSM-5 are blocked on binding with silica. SiO2-bound ZSM-5 catalysts have less catalytic activity for butane transformation (cracking...
Improvements on Taylor's Upper Bound for Rigid/Plastic Composites \\Lambda
Olson, Tamara
Improvements on Taylor's Upper Bound for Rigid/Plastic Composites \\Lambda Tamara Olson y Brigham of a mixture composed of anisotropic rigid/plastic materials. It is assumed that the only mechanism for deformation is plastic deformation of individual grains and that the set of stresses causing plastic flow (the
Improved Bounds on the Effective Yield Surface of Inhomogeneous Rigid/Plastic Materials
Olson, Tamara
Improved Bounds on the Effective Yield Surface of Inhomogeneous Rigid/Plastic Materials Tamara January 1993 Abstract The yield surface of a mixture of rigid/perfectlyplastic materials is examined plasticity under suffi ciently large stress. The set of stresses at which the deformation changes from
Scheduling Algorithms and Bounds for Rateless Data Dissemination in Dense Wireless Networks
Starobinski, David
Scheduling Algorithms and Bounds for Rateless Data Dissemination in Dense Wireless Networks Kan Lin, Germany Email: ska@alum.bu.edu Abstract--Many applications in wireless cellular networks rely dissemination in dense multi-channel wireless cellular networks, using rateless coding transmission. We begin
Approximation Methods for Pricing Problems under the Nested Logit Model with Price Bounds
Rusmevichientong, Paat
Approximation Methods for Pricing Problems under the Nested Logit Model with Price Bounds W@orie.cornell.edu September 5, 2013 Abstract We consider two variants of a pricing problem under the nested logit model. In the first variant, the set of products offered to customers is fixed and we want to determine the prices
Grigoriev, Dima
Nash resolution for binomial varieties as Euclidean division. Apriori termination bound, polynomial of the normalizations with Nash blowings up, albeit that only for affine binomial varieties of (essential) dimen- sion 2, the equivalence of the Nash algorithm to a com- binatorial algorithm that resembles Euclidean division in dimen
Bound State Transfer Matrix for AdS5 x S5 Superstring
Gleb Arutyunov; Marius de Leeuw; Ryo Suzuki; Alessandro Torrielli
2009-09-17T23:59:59.000Z
We apply the algebraic Bethe ansatz technique to compute the eigenvalues of the transfer matrix constructed from the general bound state S-matrix of the light-cone AdS5 x S5 superstring. This allows us to verify certain conjectures on the quantum characteristic function, and to extend them to the general case.
Bounded rationality in problem solving: Guiding search with domain-independent heuristics
Langley, Pat
Bounded rationality in problem solving: Guiding search with domain-independent heuristics Pat the remarkable ability to solve complex, multi-step problems despite their limited capacity for search. We review the standard theory of problem solving, which posits that heuristic guidance makes this possible, but we also
Proton radius, bound state QED and the nonlocality of the electromagnetic interaction
Renat Kh. Gainutdinov
2011-03-21T23:59:59.000Z
The result of a recent measurement of the size of the proton [R. Pohl et al., Nature 466, 213] performed on the base of the muonic hydrogen spectroscopy turned out to be significantly different, by five standard deviations, from the results derived from the atomic hydrogen spectroscopy. This large discrepancy could come from the calculations of the Lamb shift in atomic hydrogen and muonic hydrogen. Here we show that there is a gap in the standard bound-state QED that may be the source of the discrepancy. This gap originates in the fact that within the framework of this theory the QED corrections are described in terms of the respective Green functions. The character of the time evolution of a system which should manifest itself in the general definition of bound states as stationary states of the system cannot be described in terms of the Green functions. We present a consistent way of solving the bound-state problem in QED starting from the condition of stationarity of the bound states. Formulae for the energies and the vectors of the states of one-electron (muon) atoms derived in this way indicate that the standard bound-state QED does not obey the exact description of the atomic states and, as a result, the Lamb shift obtained in its framework should be supplemented by an additional "dynamical" energy shift. It is shown that in this shift natural nonlocality of the electromagnetic interaction that in describing the S matrix and the Green functions is hidden in the renormalization procedure manifest itself explicitly.
Example USFS Preliminary Section 4(e) Report | Open Energy Information
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousPlasmaP aCentrothermDepew, New York:Essex County, New York: EnergyEvansEverguard SolarEwa
for classes Go to http://www.usf.edu
Meyers, Steven D.
taken care of your holds, you can begin your class schedule search. #12;Select appropriate term Use this if searching for an online class Choose your campus Start by selecting the appropriate term and campus from when searching for a class. Choose a subject (Ex: ENC) Enter a course # (Ex: 1102) #12;The "Status
USFS West Wide Programmatic Environmental Impact Statement Record of
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onsource History View NewUS National Fuel Cell Research Center NFCRC Jump to: navigation, search Name:USAIDUSDOIDecision |
USFS-Climate Change Resource Center | Open Energy Information
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousPlasmaP a g eWorks -09-0018-CXNuonYuchengRichlands,project activities |US DOE 20% Wind| OpenUSAIDUSFS-Climate
677http://health.usf.edu/nocms/nursing/ SECTION 20
Meyers, Steven D.
Health Nursing (NAH) to AdultGerontology Primary Care Nursing (NAH) Occup. Hlth Nursing (NOH) to Pediatric Health Nursing (NCH) Adult & Occup. Health Nursing (NAO) Dual to AdultGeron. Primary Care AdultGerontology Primary Care Dual Oncology/AdultGerontology Primary Care Family Health Pediatric
Schmidt, Douglas C.
Time-bounded Adaptation for Automotive System Software Serena Fritsch, Aline Senart Douglas C. This paper provides three contributions to the study of time-bounded adaptation for automotive system software. First, we categorise automotive systems with respect to re- quirements for dynamic software
Propagation of surface waves on a semi-bounded quantum magnetized collisional plasma
Niknam, A. R. [Laser and Plasma Research Institute, Shahid Beheshti University, G.C., Tehran (Iran, Islamic Republic of)] [Laser and Plasma Research Institute, Shahid Beheshti University, G.C., Tehran (Iran, Islamic Republic of); Taheri Boroujeni, S.; Khorashadizadeh, S. M. [Physics Department, University of Birjand, Birjand (Iran, Islamic Republic of)] [Physics Department, University of Birjand, Birjand (Iran, Islamic Republic of)
2013-12-15T23:59:59.000Z
The propagation of surface waves on a semi-bounded quantum plasma in the presence of the external magnetic field and collisional effects is investigated by using quantum magnetohydrodynamics model. A general analytical expression for the dispersion relation of surface waves is obtained by considering the boundary conditions. It is shown that, in some special cases, the obtained dispersion relation reduces to the results reported in previous works. It is also indicated that the quantum, external magnetic field and collisional effects can facilitate the propagation of surface waves on a semi-bounded plasma. In addition, it is found that the growth rate of the surface wave instability is enhanced by increasing the collision frequency and plasmonic parameter.
The Road From Classical to Quantum Codes: A Hashing Bound Approaching Design Procedure
Zunaira Babar; Panagiotis Botsinis; Dimitrios Alanis; Soon Xin Ng; Lajos Hanzo
2015-03-09T23:59:59.000Z
Powerful Quantum Error Correction Codes (QECCs) are required for stabilizing and protecting fragile qubits against the undesirable effects of quantum decoherence. Similar to classical codes, hashing bound approaching QECCs may be designed by exploiting a concatenated code structure, which invokes iterative decoding. Therefore, in this paper we provide an extensive step-by-step tutorial for designing EXtrinsic Information Transfer (EXIT) chart aided concatenated quantum codes based on the underlying quantum-to-classical isomorphism. These design lessons are then exemplified in the context of our proposed Quantum Irregular Convolutional Code (QIRCC), which constitutes the outer component of a concatenated quantum code. The proposed QIRCC can be dynamically adapted to match any given inner code using EXIT charts, hence achieving a performance close to the hashing bound. It is demonstrated that our QIRCC-based optimized design is capable of operating within 0.4 dB of the noise limit.
Fast multiscale Gaussian beam methods for wave equations in bounded convex domains
Bao, Gang, E-mail: bao@math.msu.edu [Department of Mathematics, Zhejiang University, Hangzhou 310027 (China) [Department of Mathematics, Zhejiang University, Hangzhou 310027 (China); Department of Mathematics, Michigan State University, East Lansing, MI 48824 (United States); Lai, Jun, E-mail: laijun@msu.edu [Department of Mathematics, Michigan State University, East Lansing, MI 48824 (United States)] [Department of Mathematics, Michigan State University, East Lansing, MI 48824 (United States); Qian, Jianliang, E-mail: qian@math.msu.edu [Department of Mathematics, Michigan State University, East Lansing, MI 48824 (United States)] [Department of Mathematics, Michigan State University, East Lansing, MI 48824 (United States)
2014-03-15T23:59:59.000Z
Motivated by fast multiscale Gaussian wavepacket transforms and multiscale Gaussian beam methods which were originally designed for pure initial-value problems of wave equations, we develop fast multiscale Gaussian beam methods for initial boundary value problems of wave equations in bounded convex domains in the high frequency regime. To compute the wave propagation in bounded convex domains, we have to take into account reflecting multiscale Gaussian beams, which are accomplished by enforcing reflecting boundary conditions during beam propagation and carrying out suitable reflecting beam summation. To propagate multiscale beams efficiently, we prove that the ratio of the squared magnitude of beam amplitude and the beam width is roughly conserved, and accordingly we propose an effective indicator to identify significant beams. We also prove that the resulting multiscale Gaussian beam methods converge asymptotically. Numerical examples demonstrate the accuracy and efficiency of the method.
Effects of a potential fourth fermion generation on the Higgs boson mass bounds
P. Gerhold; K. Jansen; J. Kallarackal
2010-10-29T23:59:59.000Z
We study the effect of a potential fourth fermion generation on the upper and lower Higgs boson mass bounds. This investigation is based on the numerical evaluation of a chirally invariant lattice Higgs-Yukawa model emulating the same Higgs-fermion coupling structure as in the Higgs sector of the electroweak Standard Model. In particular, the considered model obeys a Ginsparg-Wilson version of the underlying $SU(2)_L\\times U(1)_Y$ symmetry, being a global symmetry here due to the neglection of gauge fields in this model. We present our results on the modification of the upper and lower Higgs boson mass bounds induced by the presence of a hypothetical very heavy fourth quark doublet. Finally, we compare these findings to the standard scenario of three fermion generations.
Effects of a potential fourth fermion generation on the upper and lower Higgs boson mass bounds
Philipp Gerhold; Karl Jansen; Jim Kallarackal
2010-10-28T23:59:59.000Z
We study the effect of a potential fourth fermion generation on the upper and lower Higgs boson mass bounds. This investigation is based on the numerical evaluation of a chirally invariant lattice Higgs-Yukawa model emulating the same Higgs-fermion coupling structure as in the Higgs sector of the electroweak Standard Model. In particular, the considered model obeys a Ginsparg-Wilson version of the underlying ${SU}(2)_L\\times {U}(1)_Y$ symmetry, being a global symmetry here due to the neglection of gauge fields in this model. We present our results on the modification of the upper and lower Higgs boson mass bounds induced by the presence of a hypothetical very heavy fourth quark doublet. Finally, we compare these findings to the standard scenario of three fermion generations.
An Empirical Approach to Bounding the Axial Reactivity Effects of PWR Spent Nuclear Fuel
P. M. O'Leary; J. M. Scaglione
2001-04-04T23:59:59.000Z
One of the significant issues yet to be resolved for using burnup credit (BUC) for spent nuclear fuel (SNF) is establishing a set of depletion parameters that produce an adequately conservative representation of the fuel's isotopic inventory. Depletion parameters (such as local power, fuel temperature, moderator temperature, burnable poison rod history, and soluble boron concentration) affect the isotopic inventory of fuel that is depleted in a pressurized water reactor (PWR). However, obtaining the detailed operating histories needed to model all PWR fuel assemblies to which BUC would be applied is an onerous and costly task. Simplifications therefore have been suggested that could lead to using ''bounding'' depletion parameters that could be broadly applied to different fuel assemblies. This paper presents a method for determining a set of bounding depletion parameters for use in criticality analyses for SNF.
SMT-Based Bounded Model Checking for Embedded ANSI-C Software
Cordeiro, Lucas; Marques-Silva, Joao
2009-01-01T23:59:59.000Z
Propositional bounded model checking has been applied successfully to verify embedded software but is limited by the increasing propositional formula size and the loss of structure during the translation. These limitations can be reduced by encoding word-level information in theories richer than propositional logic and using SMT solvers for the generated verification conditions. Here, we investigate the application of different SMT solvers to the verification of embedded software written in ANSI-C. We have extended the encodings from previous SMT-based bounded model checkers to provide more accurate support for finite variables, bit-vector operations, arrays, structures, unions and pointers. We have integrated the CVC3, Boolector, and Z3 solvers with the CBMC front-end and evaluated them using both standard software model checking benchmarks and typical embedded applications from telecommunications, control systems and medical devices. The experiments show that our approach can analyze larger problems and sub...
One-way quantum key distribution: Simple upper bound on the secret key rate
Moroder, Tobias; Luetkenhaus, Norbert [Institute of Theoretical Physics I and Max-Planck Research Group, Institute of Optics, Information and Photonics, University Erlangen-Nuremberg, Staudtstrasse 7, 91058 Erlangen (Germany); Institute for Quantum Computing, University of Waterloo, 200 University Avenue West, Waterloo, Ontario, N2L 3G1 (Canada); Curty, Marcos [Institute of Theoretical Physics I and Max-Planck Research Group, Institute of Optics, Information and Photonics, University Erlangen-Nuremberg, Staudtstrasse 7, 91058 Erlangen (Germany)
2006-11-15T23:59:59.000Z
We present a simple method to obtain an upper bound on the achievable secret key rate in quantum key distribution (QKD) protocols that use only unidirectional classical communication during the public-discussion phase. This method is based on a necessary precondition for one-way secret key distillation; the legitimate users need to prove that there exists no quantum state having a symmetric extension that is compatible with the available measurements results. The main advantage of the obtained upper bound is that it can be formulated as a semidefinite program, which can be efficiently solved. We illustrate our results by analyzing two well-known qubit-based QKD protocols: the four-state protocol and the six-state protocol.
Crystal structure of a p53 core tetramer bound to DNA
Malecka, K.A.; Ho, W.C.; Marmorstein, R.; (Penn)
2009-09-02T23:59:59.000Z
The tumor suppressor p53 regulates downstream genes in response to many cellular stresses and is frequently mutated in human cancers. Here, we report the use of a crosslinking strategy to trap a tetrameric p53 DNA-binding domain (p53DBD) bound to DNA and the X-ray crystal structure of the protein/DNA complex. The structure reveals that two p53DBD dimers bind to B form DNA with no relative twist and that a p53 tetramer can bind to DNA without introducing significant DNA bending. The numerous dimer-dimer interactions involve several strictly conserved residues, thus suggesting a molecular basis for p53DBD-DNA binding cooperativity. Surface residue conservation of the p53DBD tetramer bound to DNA highlights possible regions of other p53 domain or p53 cofactor interactions.
Bound States for Magic State Distillation in Fault-Tolerant Quantum Computation
Earl T. Campbell; Dan E. Browne
2010-02-01T23:59:59.000Z
Magic state distillation is an important primitive in fault-tolerant quantum computation. The magic states are pure non-stabilizer states which can be distilled from certain mixed non-stabilizer states via Clifford group operations alone. Because of the Gottesman-Knill theorem, mixtures of Pauli eigenstates are not expected to be magic state distillable, but it has been an open question whether all mixed states outside this set may be distilled. In this Letter we show that, when resources are finitely limited, non-distillable states exist outside the stabilizer octahedron. In analogy with the bound entangled states, which arise in entanglement theory, we call such states bound states for magic state distillation.
Moen, Kabe
2009-04-27T23:59:59.000Z
+jT gj jT(l f)j = jljjT fj: Given two Lebesgue spaces Lp(X;m) and Lq(Y;n) we say a linear or sublinear operator T is bounded from Lp(X;m) to Lq(Y;n), if there exists a constant C =Cp;q such that for 15 all functions f 2Lp(X;m) we have kT fkLq(Y;n) Ckfk... T is bounded from Lp(X;m) to Lq;?(Y;n) if kT fkLq;?(Y;n) CkfkLp(X;m): In this case we will say T is weak (p;q) and write T : Lp(X;m)!Lq;?(Y;n). We will also consider the operator norm of weak (p;q) operators defined by kTkLp(X;m)!Lq;?(Y;n) = supkT fk...
Stationary bound states of spin-half particles in the Reissner-Nordstroem gravitational field
M. V. Gorbatenko; V. P. Neznamov
2013-07-19T23:59:59.000Z
We prove the possibility of existence of stationary bound states of spin-half particles in the Reissner-Nordstroem gravitational field using a self-conjugate Hamiltonian with a flat scalar product of wave functions. Bound states of Dirac particles with a real discrete energy spectrum can exist both for particles above the external "event horizon", and for particles under the internal "event horizon", or the Cauchy horizon. The Hilbert condition g_{00}>0 leads to a boundary condition such that components of the vector of current density of Dirac particles are zero near the "event horizons". Based on the results of this study, we can assume that there exists a new type of charged collapsars, for which the Hawking radiation is not present. The results of this study can lead to a revision of some concepts of the standard cosmological model related to the evolution of the universe and interaction of charged collapsars with surrounding matter.
Higgs boson mass bounds in the presence of a very heavy fourth quark generation
P. Gerhold; K. Jansen; J. Kallarackal
2010-11-07T23:59:59.000Z
We study the effect of a potential fourth quark generation on the upper and lower Higgs boson mass bounds. This investigation is based on the numerical evaluation of a chirally invariant lattice Higgs-Yukawa model emulating the same Higgs-fermion coupling structure as in the Higgs sector of the electroweak Standard Model. In particular, the considered model obeys a Ginsparg-Wilson version of the underlying ${SU}(2)_L\\times {U}(1)_Y$ symmetry, being a global symmetry here due to the neglection of gauge fields in this model. We present our results on the modification of the upper and lower Higgs boson mass bounds induced by the presence of a hypothetical very heavy fourth quark doublet. Finally, we compare these findings to the standard scenario of three fermion generations.
Bounds on neutrino masses from leptogenesis in type-II seesaw models
Sahu, Narendra; Sankar, S. Uma [Department of Physics, Indian Institute of Technology, Bombay, Mumbai 400076 (India)
2005-01-01T23:59:59.000Z
The presence of the triplet {delta}{sub L} in left-right symmetric theories leads to type-II seesaw mechanism for the neutrino masses. In these models, assuming a normal mass hierarchy for the heavy Majorana neutrinos, we derive a lower bound on the mass of the lightest of heavy Majorana neutrinos from the leptogenesis constraint. From this bound we establish a consistent picture for the hierarchy of heavy Majorana neutrinos in a class of left-right symmetric models in which we identify the neutrino Dirac mass matrix with that of Fritzsch type charged lepton mass matrix. It is shown that these values are compatible with the current neutrino oscillation data.
Energy-time uncertainty principle and lower bounds on sojourn time
Joachim Asch; Olivier Bourget; Victor Cortes; Claudio Fernandez
2015-07-23T23:59:59.000Z
One manifestation of quantum resonances is a large sojourn time, or autocorrelation, of states which are initially localized. We elaborate on Lavine's time-energy uncertainty principle and give an estimate on the sojourn time. The bound involves Fermi's Golden Rule for the case of perturbed embedded eigenstates. Only very mild regularity is required. We illustrate the theory by applications to resonances for time dependent- and multistate systems .
Efficient bounds on quantum-communication rates via their reduced variants
Nowakowski, Marcin L.; Horodecki, Pawel [Faculty of Applied Physics and Mathematics, Gdansk University of Technology, PL-80-952 Gdansk, Poland and National Quantum Information Centre of Gdansk, Andersa 27, PL-81-824 Sopot (Poland)
2010-10-15T23:59:59.000Z
We investigate one-way communication scenarios where Bob operating on his component can transfer some subsystem to the environment. We define reduced versions of quantum-communication rates and, further, prove upper bounds on a one-way quantum secret key, distillable entanglement, and quantum-channel capacity by means of their reduced versions. It is shown that in some cases they drastically improve their estimation.
Bounds on the kdimension of products of special posets Michael Baym # Douglas B. West +
West, Douglas B.
Trotter conjectured that dim P Ã? Q # dimP + dimQ - 2 for all posets P and Q. To shed light on this, we) the concatenation of the images of p and q under these embeddings shows that P Ã? Q embeds in R s+t , and hence dim(P Ã? Q) # dim(P ) + dim(Q). Since P and Q both appear in P Ã? Q, the trivial lower bound is max