National Library of Energy BETA

Sample records for annual inflation interest

  1. Decreasing Utility Contract Interest through Annual Payments...

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

    total interest paid. Annual payments allow Federal agencies to pay for an entire fiscal year (12 months) of payments in advance. This method is attractive to finance companies...

  2. Saving & Storing Annual Evaluations & Conflict of Interest/Compensated Outside Activity Forms

    E-Print Network [OSTI]

    Walker, Lawrence R.

    Saving & Storing Annual Evaluations & Conflict of Interest/Compensated Outside Activity Forms....................................................................................................................................................7 NOTE: Accessing the folders to save Annual Evaluations and Conflict of Interest

  3. Monetary Policy, Nominal Interest Rates, and Long-horizon Inflation Uncertainty

    E-Print Network [OSTI]

    Wright, Stephen M

    2004-06-16

    of the countries examined in this paper (the United2 Kingdom and Canada) and only in the latter part of the historical period I examine. seem clear that the nature of the market imperfections will affect the nature of the objective. Price, and possibly inflation... at similar times in the early and late 1970s, and downward shocks in the mid-1980s. This is of course unsurprising given what we know about the history of oil and other commodity prices. (iii) Whilst the impulses were similar in all countries, the responses...

  4. Unwinding inflation

    SciTech Connect (OSTI)

    D'Amico, Guido; Gobbetti, Roberto; Kleban, Matthew; Schillo, Marjorie, E-mail: gda2@nyu.edu, E-mail: rg1509@nyu.edu, E-mail: mk161@nyu.edu, E-mail: mls604@nyu.edu [Center for Cosmology and Particle Physics, New York University, 4 Washington Place, New York, NY (United States)

    2013-03-01

    Higher-form flux that extends in all 3+1 dimensions of spacetime is a source of positive vacuum energy that can drive meta-stable eternal inflation. If the flux also threads compact extra dimensions, the spontaneous nucleation of a bubble of brane charged under the flux can trigger a classical cascade that steadily unwinds many units of flux, gradually decreasing the vacuum energy while inflating the bubble, until the cascade ends in the self-annihilation of the brane into radiation. With an initial number of flux quanta Q{sub 0}?>N, this can result in N efolds of inflationary expansion while producing a scale-invariant spectrum of adiabatic density perturbations with amplitude and tilt consistent with observation. The power spectrum has an oscillatory component that does not decay away during inflation, relatively large tensor power, and interesting non-Gaussianities. Unwinding inflation fits naturally into the string landscape, and our preliminary conclusion is that consistency with observation can be attained without fine-tuning the string parameters. The initial conditions necessary for the unwinding phase are produced automatically by bubble formation, so long as the critical radius of the bubble is smaller than at least one of the compact dimensions threaded by flux.

  5. Eternal Inflation, past and future

    E-Print Network [OSTI]

    Anthony Aguirre

    2007-12-04

    Cosmological inflation, if it occurred, radically alters the picture of the `big bang', which would merely point to reheating at the end of inflation. Moreover, this reheating may be only local, so that inflation continues elsewhere and forever, continually spawning big-bang-like regions. This chapter reviews this idea of `eternal inflation', then focuses on what this may mean for the ultimate beginning of the universe. In particular, I will argue that given eternal inflation, the universe may be free of a cosmological initial singularity, might be eternal (and eternally inflating) to the past, and might obey an interesting sort of cosmological time-symmetry.

  6. Shaft Inflation

    E-Print Network [OSTI]

    Dimopoulos, Konstantinos

    2014-01-01

    A new family of inflation models is introduced and studied. The models are characterised by a scalar potential which, far from the origin, approximates an inflationary plateau, while near the origin becomes monomial, as in chaotic inflation. The models are obtained in the context of global supersymmetry starting with a superpotential, which interpolates from a generalised monomial to an O'Raifearteagh form for small to large values of the inflaton field respectively. It is demonstrated that the observables obtained, such as the scalar spectral index and the tensor to scalar ratio, are in excellent agreement with the latest Planck satellite observations. Some discussion on initial conditions and eternal inflation is included.

  7. Shaft Inflation

    E-Print Network [OSTI]

    Konstantinos Dimopoulos

    2014-06-11

    A new family of inflation models is introduced and studied. The models are characterised by a scalar potential which, far from the origin, approximates an inflationary plateau, while near the origin becomes monomial, as in chaotic inflation. The models are obtained in the context of global supersymmetry starting with a superpotential, which interpolates from a generalised monomial to an O'Raifearteagh form for small to large values of the inflaton field respectively. It is demonstrated that the observables obtained, such as the scalar spectral index and the tensor to scalar ratio, are in excellent agreement with the latest observations. Some discussion of initial conditions and eternal inflation is included.

  8. Polymer inflation

    E-Print Network [OSTI]

    Syed Moeez Hassan; Viqar Husain; Sanjeev S. Seahra

    2015-03-05

    We consider the semi-classical dynamics of a free massive scalar field in a homogeneous and isotropic cosmological spacetime. The scalar field is quantized using the polymer quantization method assuming that it is described by a gaussian coherent state. For quadratic potentials, the semi-classical equations of motion yield a universe that has an early "polymer inflation" phase which is generic and almost exactly de Sitter, followed by a epoch of slow-roll inflation. We compute polymer corrections to the slow roll formalism, and discuss the probability of inflation in this model using a physical Hamiltonian arising from time gauge fixing. We also show how in this model, it is possible to obtain a significant amount of slow-roll inflation from sub-Planckain initial data, hence circumventing some of the criticisms of standard scenarios. These results show the extent to which a quantum gravity motivated quantization method affects early universe dynamics.

  9. Kähler potentials for Planck inflation

    SciTech Connect (OSTI)

    Roest, Diederik; Scalisi, Marco; Zavala, Ivonne E-mail: m.scalisi@rug.nl

    2013-11-01

    We assess which Kähler potentials in supergravity lead to viable single-field inflationary models that are consistent with Planck. We highlight the role of symmetries, such as shift, Heisenberg and supersymmetry, in these constructions. Also the connections to string theory are pointed out. Finally, we discuss a supergravity model for arbitrary inflationary potentials that is suitable for open string inflation and generalise it to the case of closed string inflation. Our model includes the recently discussed supergravity reformulation of the Starobinsky model of inflation as well as an interesting alternative with comparable predictions.

  10. Accidental inflation from Kähler uplifting

    SciTech Connect (OSTI)

    Ben-Dayan, Ido; Westphal, Alexander; Wieck, Clemens [Deutsches Elektronen-Synchrotron DESY, Theory Group, Notkestrasse 85, D-22603 Hamburg (Germany); Jing, Shenglin, E-mail: ido.bendayan@desy.de, E-mail: shenglin.jing@utoronto.ca, E-mail: alexander.westphal@desy.de, E-mail: clemens.wieck@desy.de [Canadian Institute for Theoretical Astrophysics, University of Toronto, 60 St.George Street, Toronto, ON, M5S 3H8 (Canada)

    2014-03-01

    We analyze the possibility of realizing inflation with a subsequent dS vacuum in the Käahler uplifting scenario. The inclusion of several quantum corrections to the 4d effective action evades previous no-go theorems and allows for construction of simple and successful models of string inflation. The predictions of several benchmark models are in accord with current observations, i.e., a red spectral index, negligible non-gaussianity, and spectral distortions similar to the simplest models of inflation. A particularly interesting subclass of models are ''left-rolling'' ones, where the overall volume of the compactified dimensions shrinks during inflation. We call this phenomenon ''inflation by deflation'' (IBD), where deflation refers to the internal manifold. This subclass has the appealing features of being insensitive to initial conditions, avoiding the overshooting problem, and allowing for observable running ? ? 0.012 and enhanced tensor-to-scalar ratio r ? 10{sup ?5}. The latter results differ significantly from many string inflation models.

  11. Hybrid and multifield inflation

    E-Print Network [OSTI]

    Sfakianakis, Evangelos I

    2014-01-01

    In this thesis I study the generation of density perturbations in two classes of inflationary models: hybrid inflation and multifield inflation with non-minimal coupling to gravity. In the case of hybrid inflation, we ...

  12. Goldstone Inflation

    E-Print Network [OSTI]

    Djuna Croon; Veronica Sanz; Jack Setford

    2015-09-11

    Identifying the inflaton with a pseudo-Goldstone boson explains the flatness of its potential. Successful Goldstone Inflation should also be robust against UV corrections, such as from quantum gravity: in the language of the effective field theory this implies that all scales are sub-Planckian. In this paper we present scenarios which realise both requirements by examining the structure of Goldstone potentials arising from Coleman-Weinberg contributions. We focus on single-field models, for which we notice that both bosonic and fermionic contributions are required and that spinorial fermion representations can generate the right potential shape. We then evaluate the constraints on non-Gaussianity from higher-derivative interactions, finding that axiomatic constraints on Goldstone boson scattering prevail over the current CMB measurements. The fit to CMB data can be connected to the UV completions for Goldstone Inflation, finding relations in the spectrum of new resonances. Finally, we show how hybrid inflation can be realised in the same context, where both the inflaton and the waterfall fields share a common origin as Goldstones.

  13. Open inflation in the landscape

    E-Print Network [OSTI]

    Daisuke Yamauchi; Andrei Linde; Atsushi Naruko; Misao Sasaki; Takahiro Tanaka

    2011-08-11

    Open inflation scenario is attracting a renewed interest in the context of string landscape. Since there are a large number of metastable de Sitter vacua in string landscape, tunneling transitions to lower metastable vacua through the bubble nucleation occur quite naturally. Although the deviation of Omega_0 from unity is small by the observational bound, we argue that the effect of this small deviation on the large angle CMB anisotropies can be significant for tensor-type perturbation in open inflation scenario. We consider the situation in which there is a large hierarchy between the energy scale of the quantum tunneling and that of the slow-roll inflation in the nucleated bubble. If the potential just after tunneling is steep enough, a rapid-roll phase appears before the slow-roll inflation. In this case the power spectrum is basically determined by the Hubble rate during the slow-roll inflation. If such rapid-roll phase is absent, the power spectrum keeps the memory of the high energy density there in the large angular components. The amplitude of large angular components can be enhanced due to the effects of the wall fluctuation mode if the bubble wall tension is small. Therefore, one can construct some models in which the deviation of Omega_0 from unity is large enough to produce measurable effects. We also consider a more general class of models, where the false vacuum decay may occur due to Hawking-Moss tunneling, as well as the models involving more than one scalar field. We discuss scalar perturbations in these models and point out that a large set of such models is already ruled out by observational data, unless there was a very long stage of slow-roll inflation after the tunneling. These results show that observational data allow us to test various assumptions concerning the structure of the string theory potentials and the duration of the last stage of inflation.

  14. Open inflation in the landscape

    E-Print Network [OSTI]

    Yamauchi, Daisuke; Naruko, Atsushi; Sasaki, Misao; Tanaka, Takahiro

    2011-01-01

    Open inflation scenario is attracting a renewed interest in the context of string landscape. Since there are a large number of metastable de Sitter vacua in string landscape, tunneling transitions to lower metastable vacua through the bubble nucleation occur quite naturally. Although the deviation of Omega_0 from unity is small by the observational bound, we argue that the effect of this small deviation on the large angle CMB anisotropies can be significant for tensor-type perturbation in open inflation scenario. We consider the situation in which there is a large hierarchy between the energy scale of the quantum tunneling and that of the slow-roll inflation in the nucleated bubble. If the potential just after tunneling is steep enough, a rapid-roll phase appears before the slow-roll inflation. In this case the power spectrum is basically determined by the Hubble rate during the slow-roll inflation. If such rapid-roll phase is absent, the power spectrum keeps the memory of the high energy density there in the...

  15. Minimal Inflation

    E-Print Network [OSTI]

    Luis Alvarez-Gaume; Cesar Gomez; Raul Jimenez

    2009-12-30

    Using the universal X superfield that measures in the UV the violation of conformal invariance we build up a model of multifield inflation. The underlying dynamics is the one controlling the natural flow of this field in the IR to the Goldstino superfield once SUSY is broken. We show that flat directions satisfying the slow roll conditions exist only if R-symmetry is broken. Naturalness of our model leads to scales of SUSY breaking of the order of 10^{11-13} Gev, a nearly scale-invariant spectrum of the initial perturbations and negligible gravitational waves. We obtain that the inflaton field is lighter than the gravitino by an amount determined by the slow roll parameter eta. The existence of slow-roll conditions is directly linked to the values of supersymmetry and R-symmetry breaking scales. We make cosmological predictions of our model and compare them to current data.

  16. The expected anisotropy in solid inflation

    E-Print Network [OSTI]

    Nicola Bartolo; Marco Peloso; Angelo Ricciardone; Caner Unal

    2014-07-30

    Solid inflation is an effective field theory of inflation in which isotropy and homogeneity are accomplished via a specific combination of anisotropic sources (three scalar fields that individually break isotropy). This results in specific observational signatures that are not found in standard models of inflation: a non-trivial angular dependence for the squeezed bispectrum, and a possibly long period of anisotropic inflation (to drive inflation, the "solid" must be very insensitive to any deformation, and thus background anisotropies are very slowly erased). In this paper we compute the expected level of statistical anisotropy in the power spectrum of the curvature perturbations of this model. To do so, we account for the classical background values of the three scalar fields that are generated on large (superhorizon) scales during inflation via a random walk sum, as the perturbation modes leave the horizon. Such an anisotropy is unavoidably generated, even starting from perfectly isotropic classical initial conditions. The expected level of anisotropy is related to the duration of inflation and to the amplitude of the squeezed bispectrum. If this amplitude is close to its current observational limit (so that one of the most interesting predictions of the model can be observed in the near future), we find that a level of statistical anisotropy $\\gtrsim 3\\%$ in the power spectrum is to be expected, if inflation lasted $\\gtrsim 20-30$ e-folds more than the final $50-60$ efolds required to generare the CMB modes. We also comment and point out various similarities between solid inflation and models of inflation where a suitable coupling of the inflaton to a vector kinetic term $F^{2}$ gives frozen and scale invariant vector perturbations on superhorizon scales.

  17. The expected anisotropy in solid inflation

    SciTech Connect (OSTI)

    Bartolo, Nicola; Ricciardone, Angelo; Peloso, Marco; Unal, Caner E-mail: peloso@physics.umn.edu E-mail: unal@physics.umn.edu

    2014-11-01

    Solid inflation is an effective field theory of inflation in which isotropy and homogeneity are accomplished via a specific combination of anisotropic sources (three scalar fields that individually break isotropy). This results in specific observational signatures that are not found in standard models of inflation: a non-trivial angular dependence for the squeezed bispectrum, and a possibly long period of anisotropic inflation (to drive inflation, the ''solid'' must be very insensitive to any deformation, and thus background anisotropies are very slowly erased). In this paper we compute the expected level of statistical anisotropy in the power spectrum of the curvature perturbations of this model. To do so, we account for the classical background values of the three scalar fields that are generated on large (superhorizon) scales during inflation via a random walk sum, as the perturbation modes leave the horizon. Such an anisotropy is unavoidably generated, even starting from perfectly isotropic classical initial conditions. The expected level of anisotropy is related to the duration of inflation and to the amplitude of the squeezed bispectrum. If this amplitude is close to its current observational limit (so that one of the most interesting predictions of the model can be observed in the near future), we find that a level of statistical anisotropy F{sup 2} gives frozen and scale invariant vector perturbations on superhorizon scales.

  18. Is Eternal Inflation Eternal?

    E-Print Network [OSTI]

    Laura Mersini-Houghton

    2011-06-17

    In this paper we explore the relationship between the existence of eternal inflation and the initial conditions leading to inflation. We demonstrate that past and future completion of inflation is related, in that past-incomplete inflation can not be future eternal. Bubble universes nucleating close to the initial conditions hypersurface have the largest Lorentz boosts and experience the highest anisotropy. Consequently, their probability to collide upon formation is one. Thus instead of continuing eternally inflation ends soon after it starts. The difficulty in actualizing eternal inflation originates from the breaking of two underlying symmetries: Lorentz invariance and the general covariance of the theory which lead to an inconsistency of Einstein equations. Eternal inflation may not be eternal.

  19. Extended Inflation from Strings

    E-Print Network [OSTI]

    J. Garcia-Bellido; M. quiros

    1991-09-25

    We study the possibility of extended inflation in the effective theory of gravity from strings compactified to four dimensions and find that it strongly depends on the mechanism of supersymmetry breaking. We consider a general class of string--inspired models which are good candidates for successful extended inflation. In particular, the $\\omega$--problem of ordinary extended inflation is automatically solved by the production of only very small bubbles until the end of inflation. We find that the inflaton field could belong either to the untwisted or to the twisted massless sectors of the string spectrum, depending on the supersymmetry breaking superpotential.

  20. Saving Natural Inflation

    E-Print Network [OSTI]

    Djuna Croon; Veronica Sanz

    2015-01-12

    Slow-roll inflation requires the inflaton field to have an exceptionally flat potential, which combined with measurements of the scale of inflation demands some degree of fine-tuning. Alternatively, the flatness of the potential could be due to the inflaton's origin as a pseudo-Goldstone boson, as in Natural Inflation. Alas, consistency with Planck data places the original proposal of Natural Inflation in a tight spot, as it requires a trans-Planckian excursion of the inflaton. Although one can still tune the renormalizable potential to sub-Planckian values, higher order corrections from quantum gravity or sources of breaking of the Goldstone symmetry would ruin the predictivity of the model. In this paper we show how in more realistic models of Natural Inflation one could achieve inflation without a trans-Planckian excursion of the field. We show how a variant of Extra-natural inflation with bulk fermions can achieve the desired goal and discuss its four-dimensional duals. We also present a new type of four dimensional models inspired in Little Higgs and Composite Higgs models which can lead to sub-Planckian values of the inflaton field.

  1. Saving Natural Inflation

    E-Print Network [OSTI]

    Croon, Djuna

    2014-01-01

    Slow-roll inflation requires the inflaton field to have an exceptionally flat potential, which combined with measurements of the scale of inflation demands some degree of fine-tuning. Alternatively, the flatness of the potential could be due to the inflaton's origin as a pseudo-Goldstone boson, as in Natural Inflation. Alas, consistency with Planck data places the original proposal of Natural Inflation in a tight spot, as it requires a trans-Planckian excursion of the inflaton. Although one can still tune the renormalizable potential to sub-Planckian values, higher order corrections from quantum gravity or sources of breaking of the Goldstone symmetry would ruin the predictivity of the model. In this paper we show how in more realistic models of Natural Inflation one could achieve inflation without a trans-Planckian excursion of the field. We show how a variant of Extra-natural inflation with bulk fermions can achieve the desired goal and discuss its four-dimensional duals. We also present a new type of four ...

  2. Nonminimally coupled hybrid inflation

    SciTech Connect (OSTI)

    Koh, Seoktae [Center for Quantum Spacetime, Sogang University, Shinsu-dong 1, Mapo-gu, 121-742, Seoul (Korea, Republic of); Minamitsuji, Masato [Department of Physics, Graduate School of Science and Technology, Kwansei Gakuin University, Sanda 669-1337 (Japan)

    2011-02-15

    We discuss the hybrid inflation model where the inflaton field is nonminimally coupled to gravity. In the Jordan frame, the potential contains {phi}{sup 4} term as well as terms in the original hybrid inflation model. In our model, inflation can be classified into the type (I) and the type (II). In the type (I), inflation is terminated by the tachyonic instability of the waterfall field, while in the type (II) by the violation of slow-roll conditions. In our model, the reheating takes place only at the true minimum and even in the case (II) finally the tachyonic instability occurs after the termination of inflation. For a negative nonminimal coupling, inflation takes place in the vacuum-dominated region, in the large field region, or near the local minimum/maximum. Inflation in the vacuum-dominated region becomes either the type (I) or (II), resulting in a blue or red spectrum of the curvature perturbations, respectively. Inflation around the local maximum can be either the type (I) or the type (II), which results in the red spectrum of the curvature perturbations, while around the local minimum it must be the type (I), which results in the blue spectrum. In the large field region, to terminate inflation, potential in the Einstein frame must be positively tilted, always resulting in the red spectrum. We then numerically solve the equations of motion to investigate the whole dynamics of inflaton and confirm that the spectrum of curvature perturbations changes from red to blue ones as scales become smaller.

  3. Inflation in uplifted Supergravities

    E-Print Network [OSTI]

    B. de Carlos; J. A. Casas; A. Guarino; J. M. Moreno; O. Seto

    2007-02-13

    We present a model of slow-roll inflation in the context of effective Supergravities arising from string theories. The uplifting of the potential (to generate dS or Minkowski vacua) is provided by the D-term associated to an anomalous U(1), in a fully consistent and gauge invariant formulation. We develop a minimal working model which incorporates eternal topological inflation and complies with observational constraints, avoiding the usual obstacles to implement successful inflation ("eta problem" and initial condition problem among others).

  4. Just enough inflation

    E-Print Network [OSTI]

    Dominik J. Schwarz; Erandy Ramirez

    2009-12-22

    We propose a version of chaotic inflation, in which a fundamental scale M, well below the Planck scale M_P, fixes the initial value of the effective potential. If this scale happens to be the scale of grand unified theories, there are just enough e-foldings of inflation. An initial epoch of fast-roll breaks scale-invariance at the largest observable scales.

  5. A Model of Inflation

    E-Print Network [OSTI]

    Jarmo Mäkelä

    2014-08-26

    We consider a novel model of cosmic inflation. In our model one does not need any specific matter field to drive inflation, but inflation stems from the microscopic, Planck scale structure of spacetime, thus being of quantum gravitational origin. At a certain temperature spacetime performs a phase transition, where the cosmological constant drops from a huge, Planck scale value, which is about $10^{87}s^{-2}$ to its present, pretty small value $10^{-35}s^{-2}$. When the cosmological constant is large, the universe goes through a period of very rapid expansion which, however, comes to an abrupt end after the phase transition has been completed. Assuming that the cosmological constant depends on the age of the universe in an appropriate manner during the phase transition one may recover the predictions of the conventional inflationary scenario.

  6. Disformally coupled inflation

    E-Print Network [OSTI]

    van de Bruck, Carsten; Longden, Chris

    2015-01-01

    A disformal coupling between two scalar fields is considered in the context of cosmological inflation. The coupling introduces novel derivative interactions mixing the kinetic terms of the fields but without introducing superluminal or unstable propagation of the two scalar fluctuation modes. Though the typical effect of the disformal coupling is to inhibit one of the fields from inflating the universe, the energy density of the other field can drive viable near Sitter -inflation in the presence of nontrivial disformal dynamics, in particular when one assumes exponential instead of power-law form for the couplings. The linear perturbation equations are written for the two-field system, its canonical degrees of freedom are quantised, their spectra are derived and the inflationary predictions are reported for numerically solved exponential models. A generic prediction is low tensor-to-scalar ratio.

  7. Supersymmetry and Inflation

    E-Print Network [OSTI]

    Ferrara, S

    2015-01-01

    Theories with elementary scalar degrees of freedom seem nowadays required for simple descriptions of the Standard Model and of the Early Universe. It is then natural to embed theories of inflation in supergravity, also in view of their possible ultraviolet completion in String Theory. After some general remarks on inflation in supergravity, we describe examples of minimal inflaton dynamics which are compatible with recent observations, including higher-curvature ones inspired by the Starobinsky model. We also discuss different scenarios for supersymmetry breaking during and after inflation, which include a revived role for non-linear realizations. In this spirit, we conclude with a discussion of the link, in four dimensions, between "brane supersymmetry breaking" and the super--Higgs effect in supergravity.

  8. Holographic Inflation Revised

    E-Print Network [OSTI]

    Tom Banks; Willy Fischler

    2015-01-09

    This paper is a major revision of our previous work on the HST model of inflation. We identify the local fluctuations of the metric with fluctuations of the mass and angular momentum of black holes, and show that the consistency conditions in HST for a single trajectory to see more and more of a homogeneous distribution of black holes, imply that the system outside the horizon is undergoing inflation: small systems of equal entropy, are not in causal contact. Homogeneity then requires that the initial trajectory underwent inflation that expanded the black hole radius into our current horizon. The low entropy of the initial state of the universe is explained by the fact that this is the maximal entropy state, which has long lived localized excitations, and which can form structures more complex than black holes. The number of e-folds, reheat temperature of the universe and size of inflationary fluctuations are calculated in terms of a few parameters.

  9. Asymptotically safe Higgs inflation

    SciTech Connect (OSTI)

    Xianyu, Zhong-Zhi; He, Hong-Jian E-mail: hjhe@tsinghua.edu.cn

    2014-10-01

    We construct a new inflation model in which the standard model Higgs boson couples minimally to gravity and acts as the inflaton. Our construction of Higgs inflation incorporates the standard model with Einstein gravity which exhibits asymptotic safety in the ultraviolet region. The slow roll condition is satisfied at large field value due to the asymptotically safe behavior of Higgs self-coupling at high energies. We find that this minimal construction is highly predictive, and is consistent with both cosmological observations and collider experiments.

  10. Asymptotically Safe Higgs Inflation

    E-Print Network [OSTI]

    Zhong-Zhi Xianyu; Hong-Jian He

    2014-10-09

    We construct a new inflation model in which the standard model Higgs boson couples minimally to gravity and acts as the inflaton. Our construction of Higgs inflation incorporates the standard model with Einstein gravity which exhibits asymptotic safety in the ultraviolet region. The slow roll condition is satisfied at large field value due to the asymptotically safe behavior of Higgs self-coupling at high energies. We find that this minimal construction is highly predictive, and is consistent with both cosmological observations and collider experiments.

  11. dark matter dark energy inflation

    E-Print Network [OSTI]

    Hu, Wayne

    theory dark matter dark energy inflation The National Science Foundation The Kavli Foundation NSF Site Review November 28-29, 2005 #12;dark matter dark energy inflation NSF Site Visit ­ November 28 - 29, 2005The National Science Foundation The Kavli Foundation The Theoretical Web UHE cosmic rays B

  12. The End of Eternal Inflation

    E-Print Network [OSTI]

    Laura Mersini-Houghton; Malcolm J Perry

    2012-11-06

    We propose a new measure for eternal inflation that includes both conditions, large field fluctuations and smooth homogeneous domains, in the self reproducing probability estimate. We show that due to the increasing inhomogeneities in the background spacetime fractal, self-reproduction stops within a finite time t_f, thus inflation can not be eternal.

  13. Quantum black hole inflation

    E-Print Network [OSTI]

    M. B. Altaie

    2001-05-07

    In this paper we follow a new approach for particle creation by a localized strong gravitational field. The approach is based on a definition of the physical vacuum drawn from Heisenberg uncertainty principle. Using the fact that the gravitational field red-shifts the frequency modes of the vacuum, a condition on the minimum stregth of the gravitational field required to achieve real particle creation is derived. Application of this requirement on a Schwartzchid black hole resulted in deducing an upper limit on the region, outside the event horizon, where real particles can be created. Using this regional upper limit, and considering particle creation by black holes as a consequence of the Casimir effect, with the assumption that the created quanta are to be added to the initial energy, we deduce a natural power law for the development of the event horizon, and consequently a logarithmic law for the area spectrum of an inflating black hole. Application of the results on a cosmological model shows that if we start with a Planck-dimensional black hole, then through the process of particle creation we end up with a universe having the presently estimated critical density. Such a universe will be in a state of eternal inflation.

  14. Reheating Closed String Inflation

    E-Print Network [OSTI]

    Daniel Green

    2007-10-02

    Protecting the inflationary potential from quantum corrections typically requires symmetries that constrain the form of couplings of the inflaton to other sectors. We will explore how these restrictions affect reheating in models with UV completions. In particular, we look at how reheating occurs when inflation is governed by closed strings, using N-flation as an example. We find that coupling the inflaton preferentially to the Standard Model is difficult, and hidden sectors are typically reheated. Observational constraints are only met by a fraction of the models. In some working models, relativistic relics in the hidden sector provide dark matter candidates with masses that range from keV to PeV, with lighter masses being preferred.

  15. Inflation, evidence and falsifiability

    E-Print Network [OSTI]

    Giulia Gubitosi; Macarena Lagos; Joao Magueijo; Rupert Allison

    2015-06-30

    In this paper we consider the issue of paradigm evaluation by applying Bayes' theorem along the following nested chain of progressively more complex structures: i) parameter estimation (within a model), ii) model selection and comparison (within a paradigm), iii) paradigm evaluation. In such a chain the Bayesian evidence works both as the posterior's normalization at a given level and as the likelihood function at the next level up. Whilst raising no objections to the standard application of the procedure at the two lowest levels, we argue that it should receive an essential modification when evaluating paradigms, in view of the issue of falsifiability. By considering toy models we illustrate how unfalsifiable models and paradigms are always favoured by the Bayes factor. We argue that the evidence for a paradigm should not only be high for a given dataset, but exceptional with respect to what it would have been, had the data been different. We propose a measure of falsifiability (which we term predictivity), and a prior to be incorporated into the Bayesian framework, suitably penalising unfalsifiability. We apply this measure to inflation seen as a whole, and to a scenario where a specific inflationary model is hypothetically deemed as the only one viable as a result of information alien to cosmology (e.g. Solar System gravity experiments, or particle physics input). We conclude that cosmic inflation is currently difficult to falsify and thus to be construed as a scientific theory, but that this could change were external/additional information to cosmology to select one of its many models. We also compare this state of affairs to bimetric varying speed of light cosmology.

  16. Dark energy from gravitoelectromagnetic inflation?

    E-Print Network [OSTI]

    Federico Agustin Membiela; Mauricio Bellini

    2008-07-29

    Gravitoectromagnetic Inflation (GI) was introduced to describe in an unified manner, electromagnetic, gravitatory and inflaton fields from a 5D vacuum state. On the other hand, the primordial origin and evolution of dark energy is today unknown. In this letter we show using GI that the zero modes of some redefined vector fields $B_i=A_i/a$ produced during inflation, could be the source of dark energy in the universe.

  17. Is the Spectrum of Gravitational Waves the "Holy Grail" of Inflation?

    E-Print Network [OSTI]

    Robert H. Brandenberger

    2011-04-18

    It is often said that detecting a spectrum of primordial gravitational waves via observing B-mode polarization of the Cosmic Microwave Background is the "Holy Grail" of inflation. The purpose of this short note is to point out that it is indeed of immense scientific interest to search for a signal of gravitational waves in B-mode polarization. However, rather than proving that inflation is the right paradigm of early universe cosmology, a positive signal of direct primordial B-mode polarization might well be due to other sources than inflation. In fact, a careful characterization of the spectrum of B-mode polarization might even falsify the inflationary paradigm.

  18. Is the Spectrum of Gravitational Waves the "Holy Grail" of Inflation?

    E-Print Network [OSTI]

    Brandenberger, Robert H

    2011-01-01

    It is often said that detecting a spectrum of primordial gravitational waves via observing B-mode polarization of the Cosmic Microwave Background is the "Holy Grail" of inflation. The purpose of this short note is to point out that it is indeed of immense scientific interest to search for a signal of gravitational waves in B-mode polarization. However, rather than proving that inflation is the right paradigm of early universe cosmology, a positive signal of direct primordial B-mode polarization might well be due to other sources than inflation. In fact, a careful characterization of the spectrum of B-mode polarization might even falsify the inflationary paradigm.

  19. A Minimal Inflation Scenario

    E-Print Network [OSTI]

    Luis Alvarez-Gaume; Cesar Gomez; Raul Jimenez

    2011-10-18

    We elaborate on a minimal inflation scenario based entirely on the general properties of supersymmetry breaking in supergravity models. We identify the inflaton as the scalar component of the Goldstino superfield. We write plausible candidates for the effective action describing this chiral superfield. In particular the theory depends (apart from parameters of O(1)) on a single free parameter: the scale of supersymmetry breaking. This can be fixed using the amplitude of CMB cosmological perturbations and we therefore obtain the scale of supersymmetry breaking to be 10^{12-14} GeV. The model also incorporates explicit R-symmetry breaking in order to satisfy the slow roll conditions. In our model the eta-problem is solved without extra fine-tuning. We try to obtain as much information as possible in a model independent way using general symmetry properties of the theory's effective action, this leads to a new proposal on how to exit the inflationary phase and reheat the Universe.

  20. From Inflation to Dark Energy

    E-Print Network [OSTI]

    Robert Brout

    2005-08-04

    It is proposed that after the macroscopic fluctuation of energy density that is responsible for inflation dies away, a class of microscopic fluctuations, always present, survives to give the present day dark energy. This latter is simply a reinterpretation of the causet mechanism of Ahmed, Dodelson, Green and Sorkin, wherein the emergence of space is dropped but only energy considerations are maintained. At postinflation times, energy is exchanged between the "cisplanckian" cosmos and an unknown foam-like transplanckian reservoir. Whereas during inflation, the energy flows only from the latter to the former after inflation it fluctuates in sign thereby accounting for the tiny effective cosmological constant that seems to account for dark energy.

  1. Completing the FCOI Significant Financial Interest Disclosures Accessing the Portal

    E-Print Network [OSTI]

    Raina, Ramesh

    the Annual Conflict of Interest and Significant Financial Interest disclosures, login to MySlice and use the links in the Employee Services section. · Please begin by completing the University Conflict of Interest (COI) form, by clicking on the Conflict of Interest link. Once your COI is complete, you

  2. 2001 annual report 2001 annual report

    E-Print Network [OSTI]

    New Mexico, University of

    2001 annual report 2001 annual report 2001 annual report 2001 annual report 2001 annual report 2001 annual report 2001 annual report 2001 annual reportelectrical & computer engineering 2001 annual report the university of new mexico department of 2001 annual report 2001 annual report 2001 annual report 2001 annual

  3. Bounce Inflation Cosmology with Standard Model Higgs Boson

    E-Print Network [OSTI]

    Youping Wan; Taotao Qiu; Fa Peng Huang; Yi-Fu Cai; Hong Li; Xinmin Zhang

    2015-10-06

    It is of great interest to connect cosmology in the early universe to the Standard Model of particle physics. In this paper, we try to construct a bounce inflation model with the standard model Higgs boson, where the one loop correction is taken into account in the effective potential of Higgs field. In this model, a Galileon term has been introduced to eliminate the ghost mode when bounce happens. Moreover, due to the fact that the Fermion loop correction can make part of the Higgs potential negative, one naturally obtains a large equation of state(EoS) parameter in the contracting phase, which can eliminate the anisotropy problem. After the bounce, the model can drive the universe into the standard higgs inflation phase, which can generate nearly scale-invariant power spectrum.

  4. Bounce Inflation Cosmology with Standard Model Higgs Boson

    E-Print Network [OSTI]

    Wan, Youping; Huang, Fa Peng; Cai, Yi-Fu; Li, Hong; Zhang, Xinmin

    2015-01-01

    It is of great interest to connect cosmology in the early universe to the Standard Model of particle physics. In this paper, we try to construct a bounce inflation model with the standard model Higgs boson, where the one loop correction is taken into account in the effective potential of Higgs field. In this model, a Galileon term has been introduced to eliminate the ghost mode when bounce happens. Moreover, due to the fact that the Fermion loop correction can make part of the Higgs potential negative, one naturally obtains a large equation of state(EoS) parameter in the contracting phase, which can eliminate the anisotropy problem. After the bounce, the model can drive the universe into the standard higgs inflation phase, which can generate nearly scale-invariant power spectrum.

  5. Bounce Inflation Cosmology with Standard Model Higgs Boson

    E-Print Network [OSTI]

    Youping Wan; Taotao Qiu; Fa Peng Huang; Yi-Fu Cai; Hong Li; Xinmin Zhang

    2015-09-28

    It is of great interest to connect cosmology in the early universe to the Standard Model of particle physics. In this paper, we try to construct a bounce inflation model with the standard model Higgs boson, where the one loop correction is taken into account in the effective potential of Higgs field. In this model, a Galileon term has been introduced to eliminate the ghost mode when bounce happens. Moreover, due to the fact that the Fermion loop correction can make part of the Higgs potential negative, one naturally obtains a large equation of state(EoS) parameter in the contracting phase, which can eliminate the anisotropy problem. After the bounce, the model can drive the universe into the standard higgs inflation phase, which can generate nearly scale-invariant power spectrum.

  6. Hybrid Inflation Exit through Tunneling

    E-Print Network [OSTI]

    Bjorn Garbrecht; Thomas Konstandin

    2006-10-24

    For hybrid inflationary potentials, we derive the tunneling rate from field configurations along the flat direction towards the waterfall regime. This process competes with the classically rolling evolution of the scalar fields and needs to be strongly subdominant for phenomenologically viable models. Tunneling may exclude models with a mass scale below 10^12 GeV, but can be suppressed by small values of the coupling constants. We find that tunneling is negligible for those models, which do not require fine tuning in order to cancel radiative corrections, in particular for GUT-scale SUSY inflation. In contrast, electroweak scale hybrid inflation is not viable, unless the inflaton-waterfall field coupling is smaller than approximately 10^-11.

  7. Policy on Conflict of Interest for Academic Staff

    E-Print Network [OSTI]

    Azevedo, Ricardo

    (continued) · The cornerstone of this policy: o Annual conflict of interest certification and disclosure;Six Basic Steps in the Financial Conflict of Interest Process 1. Complete a Certification · WhoPolicy on Conflict of Interest for Academic Staff Presented by: Penny Maher Office of Research

  8. Strong Dynamics and Inflation: a review

    E-Print Network [OSTI]

    Phongpichit Channuie

    2015-01-12

    In this article, we review how strong dynamics can be efficiently employed as a viable alternative to study the mechanism of cosmic inflation. We examine single-field inflation in which the inflaton emerges as a bound state stemming from various strongly interacting field theories. We constrain the number of e-foldings for composite models of inflation in order to obtain a successful inflation. We study a set of cosmological parameters, e.g., the primordial spectral index $n_{s}$ and tensor-to-scalar ratio $r$, and confront the predicted results with the joint Planck data, and with the recent BICEP2 data.

  9. A Delicate Universe: Compactification Obstacles to D-brane Inflation...

    Office of Scientific and Technical Information (OSTI)

    A Delicate Universe: Compactification Obstacles to D-brane Inflation Citation Details In-Document Search Title: A Delicate Universe: Compactification Obstacles to D-brane Inflation...

  10. Consistent generation of magnetic fields in axion inflation models

    E-Print Network [OSTI]

    Tomohiro Fujita; Ryo Namba; Yuichiro Tada; Naoyuki Takeda; Hiroyuki Tashiro

    2015-04-15

    There has been a growing evidence for the existence of magnetic fields in the extra-galactic regions, while the attempt to associate their origin with the inflationary epoch alone has been found extremely challenging. We therefore take into account the consistent post-inflationary evolution of the magnetic fields that are originated from vacuum fluctuations during inflation. In the model of our interest, the electromagnetic (EM) field is coupled to a pseudo-scalar inflaton $\\phi$ through the characteristic term $\\phi F\\tilde F$, breaking the conformal invariance. This interaction dynamically breaks the parity and enables a continuous production of only one of the polarization states of the EM field through tachyonic instability. The produced magnetic fields are thus helical. We find that the dominant contribution to the observed magnetic fields in this model comes from the modes that leave the horizon near the end of inflation, further enhanced by the tachyonic instability right after the end of inflation. The EM field is subsequently amplified by parametric resonance during the period of inflaton oscillation. Once the thermal plasma is formed (reheating), the produced helical magnetic fields undergo a turbulent process called inverse cascade, which shifts their peak correlation scales from smaller to larger scales. We consistently take all these effects into account within the regime where the perturbation of $\\phi$ is negligible and obtain $B_{\\rm eff} \\sim 10^{-19}$G, indicating the necessity of additional mechanisms to accommodate the observations.

  11. COMMITTEE ON COMMITTEES ANNUAL REPORT

    E-Print Network [OSTI]

    Al Faruque, Mohammad Abdullah

    Interest Survey COC conducted the annual Committee Interest Survey of the Senate faculty and compiled% for all others). This contact served to ascertain a member's interest in and commitment to continuing approved appointee, and establish availability and avoid any potential conflicts. VIII. Nominations

  12. On Singularities in Cosmic Inflation

    E-Print Network [OSTI]

    Ikjyot Singh Kohli

    2015-07-02

    In this paper, we examine a flat FLRW spacetime with a scalar field potential and show by applying Osgood's criterion to the Einstein field equations that all such models, irrespective of the particular choice of potential develop finite-time singularities. That is, we show that solutions to the field equations become singular in finite time, which can have important implications for the role of inflation in cosmological models. We further point out that a possible reason for this behaviour is that the solutions to the field equations in such inflationary scenarios do not obey global existence and uniqueness properties, which is a typical characteristic of solutions that diverge in finite time.

  13. Inflation and Alternatives with Blue Tensor Spectra

    E-Print Network [OSTI]

    Yi Wang; Wei Xue

    2014-10-20

    We study the tilt of the primordial gravitational waves spectrum. A hint of blue tilt is shown from analyzing the BICEP2 and POLARBEAR data. Motivated by this, we explore the possibilities of blue tensor spectra from the very early universe cosmology models, including null energy condition violating inflation, inflation with general initial conditions, and string gas cosmology, etc. For the simplest G-inflation, blue tensor spectrum also implies blue scalar spectrum. In general, the inflation models with blue tensor spectra indicate large non-Gaussianities. On the other hand, string gas cosmology predicts blue tensor spectrum with highly Gaussian fluctuations. If further experiments do confirm the blue tensor spectrum, non-Gaussianity becomes a distinguishing test between inflation and alternatives.

  14. Effects of thermal fluctuations on thermal inflation

    E-Print Network [OSTI]

    Takashi Hiramatsu; Yuhei Miyamoto; Jun'ichi Yokoyama

    2014-12-25

    The mechanism of thermal inflation, a relatively short period of accelerated expansion after primordial inflation, is a desirable ingredient for a certain class of particle physics models if they are not to be in contention with the cosmology of the early Universe. Though thermal inflation is most simply described in terms of a thermal effective potential, a thermal environment also gives rise to thermal fluctuations that must be taken into account. We numerically study the effects of these thermal fluctuations using lattice simulations. We conclude that though they do not ruin the thermal inflation scenario, the phase transition at the end of thermal inflation proceeds through phase mixing and is therefore not accompanied by the formations of bubbles nor appreciable amplitude of gravitational waves.

  15. A numerical study of pseudoscalar inflation

    E-Print Network [OSTI]

    Cheng, Shu-Lin; Ng, Kin-Wang

    2015-01-01

    A numerical study of a pseudoscalar inflation having an axion-photon-like coupling is performed by solving numerically the coupled differential equations of motion for inflaton and photon mode functions from the onset of inflation to the end of reheating. The backreaction due to particle production is also included self-consistently. We find that this particular inflation model realizes the idea of a warm inflation in which a steady thermal bath is established by the particle production. In most cases this thermal bath exceeds the amount of radiation released in the reheating process. In the strong coupling regime, the transition from the inflationary to the radiation-dominated phase does not involve either a preheating or reheating process. In addition, energy density peaks produced near the end of inflation may lead to the formation of primordial black holes.

  16. A numerical study of pseudoscalar inflation

    E-Print Network [OSTI]

    Shu-Lin Cheng; Wolung Lee; Kin-Wang Ng

    2015-08-02

    A numerical study of a pseudoscalar inflation having an axion-photon-like coupling is performed by solving numerically the coupled differential equations of motion for inflaton and photon mode functions from the onset of inflation to the end of reheating. The backreaction due to particle production is also included self-consistently. We find that this particular inflation model realizes the idea of a warm inflation in which a steady thermal bath is established by the particle production. In most cases this thermal bath exceeds the amount of radiation released in the reheating process. In the strong coupling regime, the transition from the inflationary to the radiation-dominated phase does not involve either a preheating or reheating process. In addition, energy density peaks produced near the end of inflation may lead to the formation of primordial black holes.

  17. Inflation and alternatives with blue tensor spectra

    SciTech Connect (OSTI)

    Wang, Yi; Xue, Wei E-mail: wei.xue@sissa.it

    2014-10-01

    We study the tilt of the primordial gravitational waves spectrum. A hint of blue tilt is shown from analyzing the BICEP2 and POLARBEAR data. Motivated by this, we explore the possibilities of blue tensor spectra from the very early universe cosmology models, including null energy condition violating inflation, inflation with general initial conditions, and string gas cosmology, etc. For the simplest G-inflation, blue tensor spectrum also implies blue scalar spectrum. In general, the inflation models with blue tensor spectra indicate large non-Gaussianities. On the other hand, string gas cosmology predicts blue tensor spectrum with highly Gaussian fluctuations. If further experiments do confirm the blue tensor spectrum, non-Gaussianity becomes a distinguishing test between inflation and alternatives.

  18. BPRC Annual Report BPRC Awards Compared to Inflation Since 1980

    E-Print Network [OSTI]

    Howat, Ian M.

    ,810, 5% #12;BPRC Personnel Trends (1987 2006) 40 46 49 52 56 60 56 60 64 63 66 69 66 72 63 11 16 25 22 to BPRC/Geological Sciences/OSU. Library Annex will be renamed for him.BPRC/Geological Sciences/OSU. Library Annex will be renamed for him. #12;StaffStaff Mary DavisMary Davis was the second recipient

  19. Universe Decay, Inflation and the Large Eigenvalue of the Cosmological Constant Seesaw

    E-Print Network [OSTI]

    Michael McGuigan

    2007-02-22

    We discuss implications of the large eigenvalue of the cosmological constant seesaw mechanism extending hep-th/0602112 and hep-th/0604108. While the previous papers focused on the small eigenvalue as a cosmological constant associated with the accelerating Universe, here we draw attention to the physical implications of the large eigenvalue. In particular we find that the large eigenvalue can give rise to a period of inflation terminated by Universe decay. The mechanism involves quantum tunneling and mixing and introduces parameters $\\Gamma$, the decay constant, and $\\theta$, the mixing angle. We discuss the cosmological constant seesaw mechanism in the context of various models of current interest including chain inflation, inflatonless inflation, string theory, Universe entanglement and different approaches to the hierarchy problem.

  20. Primordial anisotropies in gauged hybrid inflation

    SciTech Connect (OSTI)

    Abolhasani, Ali Akbar; Emami, Razieh; Firouzjahi, Hassan E-mail: emami@ipm.ir

    2014-05-01

    We study primordial anisotropies generated in the model of gauged hybrid inflation in which the complex waterfall field is charged under a U(1)gauge field. Primordial anisotropies are generated either actively during inflation or from inhomogeneities modulating the surface of end of inflation during waterfall transition. We present a consistent ?N mechanism to calculate the anisotropic power spectrum and bispectrum. We show that the primordial anisotropies generated at the surface of end of inflation do not depend on the number of e-folds and therefore do not produce dangerously large anisotropies associated with the IR modes. Furthermore, one can find the parameter space that the anisotropies generated from the surface of end of inflation cancel the anisotropies generated during inflation, therefore relaxing the constrains on model parameters imposed from IR anisotropies. We also show that the gauge field fluctuations induce a red-tilted power spectrum so the averaged power spectrum from the gauge field can change the total power spectrum from blue to red. Therefore, hybrid inflation, once gauged under a U(1) field, can be consistent with the cosmological observations.

  1. Web points of interest

    E-Print Network [OSTI]

    Web points of interest ... JUGGLING CLUB; The Lafayette Citizens Band Home Page; Harold Boas' incredible list of math and life resources on the WEB.

  2. TOTAL ANNUAL Rent / Mortgage $

    E-Print Network [OSTI]

    Snider, Barry B.

    etc.) $ Child Care Expenses $ Educational Loans taken out in parent's name $ Other (itemize below): $ $ RESOURCES TOTAL ANNUAL AMOUNT Parent 1 Wages $ Parent 2 Wages $ Interest and/or Dividend Income $ Net Income $ Contributions to tax deferred plans(401K) $ Non Educational Veterans' Benefits $ Unemployment Compensation

  3. D-term Uplifted Racetrack Inflation

    E-Print Network [OSTI]

    Philippe Brax; Anne-Christine Davis; Stephen C. Davis; Rachel Jeannerot; Marieke Postma

    2007-10-25

    It is shown that racetrack inflation can be implemented in a moduli stabilisation scenario with a supersymmetric uplifting D-term. The resulting model is completely described by an effective supergravity theory, in contrast to the original racetrack models. We study the inflationary dynamics and show that the gaugino condensates vary during inflation. The resulting spectral index is n_s = 0.95 as in the original racetrack inflation model. Hence extra fields do not appear to alter the predictions of the model. An equivalent, simplified model with just a single field is presented.

  4. Localization on the Landscape and Eternal Inflation

    E-Print Network [OSTI]

    Laura Mersini-Houghton; Malcolm J. Perry

    2014-04-22

    We investigate the validity of the assertion that eternal inflation populates the landscape of string theory. We verify that bubble solutions do not satisfy the Klein Gordon equation for the landscape potential. Solutions to the landscape potential within the formalism of quantum cosmology are Anderson localized wavefunctions. Those are inconsistent with inflating bubble solutions. The physical reasons behind the failure of a relation between eternal inflation and the landscape are rooted in quantum phenomena such as interference between wavefunction concentrated around the various vacua in the landscape.

  5. Conformal Frame Dependence of Inflation

    E-Print Network [OSTI]

    Guillem Domènech; Misao Sasaki

    2015-10-15

    Physical equivalence between different conformal frames in scalar-tensor theory of gravity is a known fact. However, assuming that matter minimally couples to the metric of a particular frame, which we call the matter Jordan frame, the matter point of view of the universe may vary from frame to frame. Thus, there is a clear distinction between gravitational sector (curvature and scalar field) and matter sector. In this paper, focusing on a simple power-law inflation model in the Einstein frame, two examples are considered; a super-inflationary and a bouncing universe Jordan frames. Then we consider a spectator curvaton minimally coupled to a Jordan frame, and compute its contribution to the curvature perturbation power spectrum. In these specific examples, we find a blue tilt at short scales for the super-inflationary case, and a blue tilt at large scales for the bouncing case.

  6. Inflating with large effective fields

    SciTech Connect (OSTI)

    Burgess, C.P. [PH-TH Division, CERN, CH-1211, Genève 23 (Switzerland); Cicoli, M. [Dipartimento di Fisica e Astronomia, Università di Bologna, Via Irnerio 46, 40126 Bologna (Italy); Quevedo, F. [Abdus Salam ICTP, Strada Costiera 11, Trieste 34014 (Italy); Williams, M., E-mail: cburgess@perimeterinstitute.ca, E-mail: mcicoli@ictp.it, E-mail: f.quevedo@damtp.cam.ac.uk, E-mail: mwilliams@perimeterinsititute.ca [Department of Physics and Astronomy, McMaster University, 1280 Main Street West, Hamilton ON (Canada)

    2014-11-01

    We re-examine large scalar fields within effective field theory, in particular focussing on the issues raised by their use in inflationary models (as suggested by BICEP2 to obtain primordial tensor modes). We argue that when the large-field and low-energy regimes coincide the scalar dynamics is most effectively described in terms of an asymptotic large-field expansion whose form can be dictated by approximate symmetries, which also help control the size of quantum corrections. We discuss several possible symmetries that can achieve this, including pseudo-Goldstone inflatons characterized by a coset G/H (based on abelian and non-abelian, compact and non-compact symmetries), as well as symmetries that are intrinsically higher dimensional. Besides the usual trigonometric potentials of Natural Inflation we also find in this way simple large-field power laws (like V ? ?{sup 2}) and exponential potentials, V(?) = ?{sub k}V{sub x}e{sup ?k?/M}. Both of these can describe the data well and give slow-roll inflation for large fields without the need for a precise balancing of terms in the potential. The exponential potentials achieve large r through the limit |?| || ? and so predict r ? (8/3)(1-n{sub s}); consequently n{sub s} ? 0.96 gives r ? 0.11 but not much larger (and so could be ruled out as measurements on r and n{sub s} improve). We examine the naturalness issues for these models and give simple examples where symmetries protect these forms, using both pseudo-Goldstone inflatons (with non-abelian non-compact shift symmetries following familiar techniques from chiral perturbation theory) and extra-dimensional models.

  7. Inflation in Supergravity with a Single Superfield

    E-Print Network [OSTI]

    Terada, Takahiro

    2015-01-01

    Supergravity is a well-motivated theory beyond the standard model of particle physics, and a suitable arena to study high-energy physics at the early universe including inflation, whose observational evidences are growing more and more. Inflation in supergravity, however, cannot be easily described because of restrictions from supersymmetry (SUSY). The scalar potential has an exponential factor and a large negative term whereas a flat and positive potential is needed to realize inflation. The standard method to obtain such an inflationary scalar potential requires an additional superfield to the one containing inflaton. In this thesis, we propose and develop an alternative method which does not require the additional superfield and thus reduces the necessary degrees of freedom by half. That is, we study inflation in supergravity with only a single chiral superfield which contains inflaton. We accomplish it by introducing a higher dimensional term in the inflaton Kahler potential, which plays an important dual...

  8. First Order Inflation in General Relativity

    E-Print Network [OSTI]

    David Wands

    1994-07-20

    I give a general formulation of the constraints on models of inflation ended by a first order phase transition arising from the requirement that they do not produce too many large (observable) true vacuum voids -- the `big bubble problem'. It is shown that this constraint can be satisfied by a simple model in Einstein gravity -- a variant of `hybrid' or `false vacuum' inflation. (Talk presented at `Birth of the Universe' workshop Rome, May 1994)

  9. The simplest extension of Starobinsky inflation

    E-Print Network [OSTI]

    Carsten van de Bruck; Laura Elena Paduraru

    2015-05-07

    We consider the simplest extension to the Starobinsky model, by allowing an extra scalar field to help drive inflation. We perform our analysis in the Einstein frame and calculate the power spectra at the end of inflation to second order in the slow--roll parameters. We find that the model gives predictions in great agreement with the current Planck data without the need for fine-tuning. Our results encourage current efforts to embed the model in a supergravity setting.

  10. Higgs portal valleys, stability and inflation

    E-Print Network [OSTI]

    Guillermo Ballesteros; Carlos Tamarit

    2015-09-30

    The measured values of the Higgs and top quark masses imply that the Standard Model potential is very likely to be unstable at large Higgs values. This is particularly problematic during inflation, which sources large perturbations of the Higgs. The instability could be cured by a threshold effect induced by a scalar with a large vacuum expectation value and directly connected to the Standard Model through a Higgs portal coupling. However, we find that in a minimal model in which the scalar generates inflation, this mechanism does not stabilize the potential because the mass required for inflation is beyond the instability scale. This conclusion does not change if the Higgs has a direct weak coupling to the scalar curvature. On the other hand, if the potential is absolutely stable, successful inflation in agreement with current CMB data can occur along a valley of the potential with a Mexican hat profile. We revisit the stability conditions, independently of inflation, and clarify that the threshold effect cannot work if the Higgs portal coupling is too small. We also show that inflation in a false Higgs vacuum appearing radiatively for a tuned ratio of the Higgs and top masses leads to an amplitude of primordial gravitational waves that is far too high, ruling out this possibility.

  11. Compound Interest - Purdue

    E-Print Network [OSTI]

    2015-09-03

    In interest theory, the difference between borrowing money and saving money is only in the point of view. ...... How long will it take you to save. $38,000 for your ...

  12. Instant uplifted inflation: A solution for a tension between inflation and SUSY breaking scale

    E-Print Network [OSTI]

    Yusuke Yamada

    2013-06-04

    The Hubble parameter during the inflationary era must be smaller than the gravitino mass if the moduli are stabilized by the Kachru-Kallosh-Linde-Trivedi mechanism. This condition represents the difficulty to combine the low scale SUSY breaking and the high scale inflation. We propose a simple mechanism which can naturally separate the inflation scale from the SUSY breaking scale today.

  13. Inflation driven by q-de Sitter

    E-Print Network [OSTI]

    M. R. Setare; D. Momeni; V. Kamali; R. Myrzakulov

    2015-06-30

    We propose a generalised de Sitter scale factor for the cosmology of early and late time universe, including single scalar field is called as inflaton. This form of scale factor has a free parameter $q$ is called as nonextensivity parameter. When $q=1$, the scale factor is de Sitter. This scale factor is an intermediate form between power-law and de Sitter. We study cosmology of such families. We show that both kinds of dark components, dark energy and dark matter simultaneously are described by this family of solutions. As a motivated idea, we investigate inflation in the framework of $q$-de Sitter. We consider three types of scenarios for inflation. In a single inflation scenario, we observe that, inflation ended without any specific ending inflation $\\phi_{end}$, the spectral index and the associated running of the spectral index are %$ n_\\mathrm{s} - 1 \\sim -2\\epsilon, \\quad \\alpha_\\mathrm{s} \\equiv 0 $. To end the inflation: we should have $q=\\frac{3}{4}$. We deduce that the inflation ends when the evolution of the scale factor is $a (t) =e_ {3/4} (t) $. With this scale factor there is no need to specify $\\phi_{end}$. As an alternative to have inflation with ending point, We will study q-inflation model in the context of warm inflation. We propose two forms of damping term $\\Gamma$. In the first case when $\\Gamma=\\Gamma_0$, we show the scale invariant spectrum, (Harrison-Zeldovich spectrum, i.e. $n_s=1$) may be approximately presented by ($q=\\frac{9}{10},~~N=70$). Also there is a range of values of $R$ and $n_s$ which is compatible with the BICEP2 data where $q=\\frac{9}{10}$. In case $\\Gamma=\\Gamma_1V(\\phi)$, it is observed that small values of a number of e-folds are assured for small values of $q$ parameter. For $q=\\frac{9}{10}$ a range of values of $R$ and $n_s$ is compatible with the BICEP2 data.

  14. Holographic Inflation and the Low Entropy of the Early Universe

    E-Print Network [OSTI]

    Tom Banks

    2015-01-12

    This is a completely rewritten version of the talk I gave at the Philosophy of Cosmology conference in Tenerife, September 2014, which incorporates elements of my IFT Madrid Anthropics Conference talk. The original was too technical. The current version uses intuitive notions from black hole physics to explain the model of inflationary cosmology based on the Holographic Space Time formalism. The reason that the initial state of the universe had low entropy is that more generic states have no localized excitations, since in HST, localized excitations are defined by constraints on the fundamental variables. The only way to obtain a radiation dominated era, is for each time-like geodesic to see an almost uniform gas of small black holes as its horizon expands, such that the holes evaporate into radiation before they collide and coalesce. Comparing the time slicing that follows causal diamonds along a trajectory, with the global FRW slicing, one sees that systems outside the horizon had to undergo inflation, with a number of e-folds fixed by the present and inflationary cosmological constants, and the black hole number density on FRW slices just after inflation ends. These parameters also determine the size of scalar and tensor metric perturbations and the reheat temperature of the universe. I sketch a class of explicit finite quantum mechanical models of cosmology, which have these properties. Physicists interested in the details of those models should consult a recent paper\\cite{holoinflation3}.

  15. Generic inference of inflation models by non-Gaussianity and primordial power spectrum reconstruction

    SciTech Connect (OSTI)

    Dorn, Sebastian; Enßlin, Torsten A.; Ramirez, Erandy; Kunze, Kerstin E.

    2014-06-01

    We present a generic inference method for inflation models from observational data by the usage of higher-order statistics of the curvature perturbation on uniform density hypersurfaces. This method is based on the calculation of the posterior for the primordial non-Gaussianity parameters f{sub NL} and g{sub NL}, which in general depend on specific parameters of inflation and reheating models, and enables to discriminate among the still viable inflation models. To keep analyticity as far as possible to dispense with numerically expensive sampling techniques a saddle-point approximation is introduced, whose precision is validated for a numerical toy example. The mathematical formulation is done in a generic way so that the approach remains applicable to cosmic microwave background data as well as to large scale structure data. Additionally, we review a few currently interesting inflation models and present numerical toy examples thereof in two and three dimensions to demonstrate the efficiency of the higher-order statistics method. A second quantity of interest is the primordial power spectrum. Here, we present two Bayesian methods to infer it from observational data, the so called critical filter and an extension thereof with smoothness prior, both allowing for a non-parametric spectrum reconstruction. These methods are able to reconstruct the spectra of the observed perturbations and the primordial ones of curvature perturbation even in case of non-Gaussianity and partial sky coverage. We argue that observables like T- and B-modes permit to measure both spectra. This also allows to infer the level of non-Gaussianity generated since inflation.

  16. Inflation targeting in emerging countries: the exchange rate issues 

    E-Print Network [OSTI]

    Reyes Altamirano, Javier Arturo

    2004-09-30

    The current discussion of Inflation Targeting (IT) in emerging economies deals with the effects that nominal exchange rate movements have on the overall inflation rate. The literature has focused in the analysis of the ...

  17. RESEARCH STATEMENT Research Interest

    E-Print Network [OSTI]

    Khan, Taufiquar R.

    networks such as the "smart grid," sparse signal representation, and robust signal detection in power the power system network relevant to the "smart grid." I am interested in building a large externally funded the inverse parameter estimation problem requires minimizing an error or a cost functional J(q;z,f). In most

  18. An Interesting Identity

    E-Print Network [OSTI]

    Brett Pansano

    2015-03-13

    This purpose of this paper is to note an interesting identity derived from an integral in Gradshteyn and Ryzhik using techniques from George Boros'(deceased) Ph.D thesis. The idenity equates a sum to a product by evaluating an integral in two different ways. A more general form of the idenity is left for further investigation.

  19. Inflation in Kaluza-Klein cosmology. 2; Freidmann models

    SciTech Connect (OSTI)

    Bleyer, U. ); Schmidt, H.J. )

    1990-12-20

    The conformal relation between scale- invariant fourth-order gravity and Kaluza-Klein models as derived is applied to Friedmann cosmological models. Especially, the results that power-law inflation is an attractor solution can be carried over, but the conformal transformation brings power-law inflation to de Sitter-like exponential inflation, or power-law inflation a {approx} t. This paper reports that results depend essentially on the dimension of the internal space.

  20. Self-Assembled Polymer Membrane Capsules Inflated by Osmotic Pressure

    E-Print Network [OSTI]

    Bausch, Andreas

    Self-Assembled Polymer Membrane Capsules Inflated by Osmotic Pressure Vernita D. Gordon,, Xi Chen stabilized by adsorption to colloids and inflated by osmotic pressure from internal free polyelectrolyte deformation. The osmotic pressure inflating these capsules has the potential to trigger release of contents

  1. Inflation after COBE: Lectures on inflationary cosmology

    SciTech Connect (OSTI)

    Turner, M.S. [Chicago Univ., IL (United States). Enrico Fermi Inst.]|[Fermi National Accelerator Lab., Batavia, IL (United States)

    1992-12-31

    In these lectures I review the standard hot big-bang cosmology, emphasizing its successes, its shortcomings, and its major challenge-a detailed understanding of the formation of structure in the Universe. I then discuss the motivations for and the fundamentals of inflationary cosmology, particularly emphasizing the quantum origin of metric (density and gravity-wave) perturbations. Inflation addresses the shortcomings of the standard cosmology and provides the ``initial data`` for structure formation. I conclude by addressing the implications of inflation for structure formation, evaluating the various cold dark matter models in the light of the recent detection of temperature anisotropies in the cosmic background radiation by COBE. In the near term, the study of structure formation offers a powerful probe of inflation, as well as specific inflationary models.

  2. On Power Law Inflation in DBI Models

    E-Print Network [OSTI]

    Michal Spalinski

    2007-04-26

    Inflationary models in string theory which identify the inflaton with an open string modulus lead to effective field theories with non-canonical kinetic terms: Dirac-Born-Infeld scalar field theories. In the case of a $D$-brane moving in an AdS throat with a quadratic scalar field potential DBI kinetic terms allow a novel realization of power law inflation. This note adresses the question of whether this behaviour is special to this particular choice of throat geometry and potential. The answer is that for any throat geometry one can explicitly find a potential which leads to power law inflation. This generalizes the well known fact that an exponential potential gives power law inflation in the case of canonical kinetic terms.

  3. F-term uplifted racetrack inflation

    E-Print Network [OSTI]

    Marcin Badziak

    2010-05-30

    It is shown that two classes of racetrack inflation models, saddle point and inflection point ones, can be constructed in a fully supersymmetric framework with the matter field F-term as a source of supersymmetry (SUSY) breaking and uplifting. Two models of F-term SUSY breaking are considered: the Polonyi model and the quantum corrected O'Raifeartaigh model. In the former case, both classes of racetrack inflation models differ significantly from the corresponding models with non-SUSY uplifting. The main difference is a quite strong dominance of the inflaton by the matter field. In addition, fine-tuning of the parameters is relaxed as compared to the original racetrack models. In the case of the racetrack inflation models coupled to the O'Raifeartaigh model, the matter field is approximately decoupled from the inflationary dynamics.

  4. The Price of WMAP Inflation in Supergravity

    E-Print Network [OSTI]

    J. Ellis; Z. Lalak; S. Pokorski; K. Turzynski

    2006-06-15

    The three-year data from WMAP are in stunning agreement with the simplest possible quadratic potential for chaotic inflation, as well as with new or symmetry-breaking inflation. We investigate the possibilities for incorporating these potentials within supergravity, particularly of the no-scale type that is motivated by string theory. Models with inflation driven by the matter sector may be constructed in no-scale supergravity, if the moduli are assumed to be stabilised by some higher-scale dynamics and at the expense of some fine-tuning. We discuss specific scenarios for stabilising the moduli via either D- or F-terms in the effective potential, and survey possible inflationary models in the presence of D-term stabilisation.

  5. Observational constraints on braneworld chaotic inflation

    E-Print Network [OSTI]

    Andrew R Liddle; Anthony J Smith

    2003-08-13

    We examine observational constraints on chaotic inflation models in the Randall-Sundrum Type II braneworld. If inflation takes place in the high-energy regime, the perturbations produced by the quadratic potential are further from scale-invariance than in the standard cosmology, in the quartic case more or less unchanged, while for potentials of greater exponent the trend is reversed. We test these predictions against a data compilation including the WMAP measurements of microwave anisotropies and the 2dF galaxy power spectrum. While in the standard cosmology the quartic potential is at the border of what the data allow and all higher powers excluded, we find that in the high-energy regime of braneworld inflation even the quadratic case is under strong observational pressure. We also investigate the intermediate regime where the brane tension is comparable to the inflationary energy scale, where the deviations from scale-invariance prove to be greater.

  6. Inflatable partition for fighting mine fires

    DOE Patents [OSTI]

    Conti, Ronald S. (Pittsburgh, PA); Lazzara, Charles P. (Pittsburgh, PA)

    1995-01-01

    The seal is a lightweight, inflatable, bag which may be inflated by a portable air generator and is used to seal a burning mine passage. A collapsible tube-like aperture extends through the seal and allows passage of high expansion foam through the seal in a feed tube. The foam fills the passageway and extinguishes the fire. In other embodiments, the feed tubes incorporate means to prevent collapse of the aperture. In these embodiments a shroud connects the feed tube to a foam generator. This seal allows creation of a high expansion foam fire fighting barrier even in upward sloping passages.

  7. Inflation models, spectral index and observational constraints

    E-Print Network [OSTI]

    Laura Covi

    2000-03-30

    We have evaluated the observational constraints on the spectral index $n$, in the context of a $\\Lambda$CDM model. For $n$ scale-independent, as predicted by most models of inflation, present data require $n\\simeq 1.0 \\pm 0.1$ at the 2-$\\sigma$ level. We have also studied the two-parameter scale-dependent spectral index, predicted by running-mass inflation models. Present data allow significant variation of $n$ in this case, within the theoretically preferred region of parameter space.

  8. The Wildlife Society (TWS) GIS Annual Remote Sensing Meeting

    E-Print Network [OSTI]

    Dwyer, Chris

    1996-01-01

    Secretary/Treasurer, TWS GIS & Remote Sensing Working Group.The Wildlife Society (TWS) GIS Annual Remote Sensing Meetinghosted a special meeting of GIS and remote sensing interests

  9. Upgraded Coal Interest Group

    SciTech Connect (OSTI)

    Evan Hughes

    2009-01-08

    The Upgraded Coal Interest Group (UCIG) is an EPRI 'users group' that focuses on clean, low-cost options for coal-based power generation. The UCIG covers topics that involve (1) pre-combustion processes, (2) co-firing systems and fuels, and (3) reburn using coal-derived or biomass-derived fuels. The UCIG mission is to preserve and expand the economic use of coal for energy. By reducing the fuel costs and environmental impacts of coal-fired power generation, existing units become more cost effective and thus new units utilizing advanced combustion technologies are more likely to be coal-fired.

  10. Lifetime Ruin Minimization: Should Retirees Hedge Inflation

    E-Print Network [OSTI]

    Huang, Huaxiong

    - conomic inflation rate for the population. For example in the U.S. the Consumer Price Index (CPI) has happy, in the appendix we also solve the model by maximizing utility of lifetime consumption. Either way industry is shifting its attention from wealth accumulation to generating a sustainable retirement income

  11. Chaotic inflation with curvaton induced running

    E-Print Network [OSTI]

    Martin S. Sloth

    2014-09-08

    While dust contamination now appears as a likely explanation of the apparent tension between the recent BICEP2 data and the Planck data, we will here explore the consequences of a large running in the spectral index as suggested by the BICEP2 collaboration as an alternative explanation of the apparent tension, but which would be in conflict with prediction of the simplest model of chaotic inflation. The large field chaotic model is sensitive to UV physics, and the nontrivial running of the spectral index suggested by the BICEP2 collaboration could therefore, if true, be telling us some additional new information about the UV completion of inflation. However, before we would be able to draw such strong conclusions with confidence, we would first have to also carefully exclude all the alternatives. Assuming monomial chaotic inflation is the right theory of inflation, we therefore explore the possibility that the running could be due to some other less UV sensitive degree of freedom. As an example, we ask if it is possible that the curvature perturbation spectrum has a contribution from a curvaton, which makes up for the large running in the spectrum. We find that this effect could mask the information we can extract about the UV physics. We also study different different models, which might lead to a large negative intrinsic running of the curvaton.

  12. CELLULAR ALGEBRAS: INFLATIONS AND MORITA EQUIVALENCES

    E-Print Network [OSTI]

    Xi, Changchang

    CELLULAR ALGEBRAS: INFLATIONS AND MORITA EQUIVALENCES STEFFEN KO$ NIG AND CHANGCHANG XI Dedicated to Professor Helmut Lenzing on the occasion of his 60th birthday 1. Introduction Cellular algebras have make explicit an inductive construction of cellular algebras which has as input data of linear algebra

  13. Phenomenology of the minimal inflation scenario: inflationary trajectories and particle production

    E-Print Network [OSTI]

    Luis Alvarez-Gaume; Cesar Gomez; Raul Jimenez

    2012-03-06

    We discuss the phenomenology of the minimal inflation scenario. We concentrate on two aspects: inflationary trajectories and particle production. Our findings can be summarized in two main results: first, that inflationary trayectories that are very flat and provide enough number of e-foldings are natural in the scenario without fine tunning. We present a general formalism to identify attractors in multi-field inflation regardless of trajectories fulfilling the slow-roll conditions. We then explore particle production in the model and show how the inflaton naturally transmutes into a dark matter particle. One interesting feature of our model is that it provides a novel mechanism to generate particles and entropy in the universe: the filling of the Fermi sphere up to a given momentum p_F due to the sea of goldstinos that are an important part of the matter generated after inflation. With this mechanism in hand we predict that the gravitino should have a mass of > 100-1000 TeV. Another interesting feature of our model is that the predicted level of gravity waves is r=0.1 - 0.001, which is in the range of detectability from Planck and upcoming CMB polarization experiments.

  14. Observational constraints on Tachyon and DBI inflation

    SciTech Connect (OSTI)

    Li, Sheng; Liddle, Andrew R., E-mail: sl277@sussex.ac.uk, E-mail: arl@roe.ac.uk [Astronomy Centre, University of Sussex, Brighton, BN1 9QH (United Kingdom)

    2014-03-01

    We present a systematic method for evaluation of perturbation observables in non-canonical single-field inflation models within the slow-roll approximation, which allied with field redefinitions enables predictions to be established for a wide range of models. We use this to investigate various non-canonical inflation models, including Tachyon inflation and DBI inflation. The Lambert W function will be used extensively in our method for the evaluation of observables. In the Tachyon case, in the slow-roll approximation the model can be approximated by a canonical field with a redefined potential, which yields predictions in better agreement with observations than the canonical equivalents. For DBI inflation models we consider contributions from both the scalar potential and the warp geometry. In the case of a quartic potential, we find a formula for the observables under both non-relativistic (sound speed c{sub s}{sup 2} ? 1) and relativistic behaviour (c{sub s}{sup 2} || 1) of the scalar DBI inflaton. For a quadratic potential we find two branches in the non-relativistic c{sub s}{sup 2} ? 1 case, determined by the competition of model parameters, while for the relativistic case c{sub s}{sup 2} ? 0, we find consistency with results already in the literature. We present a comparison to the latest Planck satellite observations. Most of the non-canonical models we investigate, including the Tachyon, are better fits to data than canonical models with the same potential, but we find that DBI models in the slow-roll regime have difficulty in matching the data.

  15. The effective field theory of inflation models with sharp features

    SciTech Connect (OSTI)

    Bartolo, Nicola; Cannone, Dario; Matarrese, Sabino E-mail: dario.cannone@pd.infn.it

    2013-10-01

    We describe models of single-field inflation with small and sharp step features in the potential (and sound speed) of the inflaton field, in the context of the Effective Field Theory of Inflation. This approach allows us to study the effects of features in the power-spectrum and in the bispectrum of curvature perturbations, from a model-independent point of view, by parametrizing the features directly with modified ''slow-roll'' parameters. We can obtain a self-consistent power-spectrum, together with enhanced non-Gaussianity, which grows with a quantity ? that parametrizes the sharpness of the step. With this treatment it is straightforward to generalize and include features in other coefficients of the effective action of the inflaton field fluctuations. Our conclusion in this case is that, excluding extrinsic curvature terms, the only interesting effects at the level of the bispectrum could arise from features in the first slow-roll parameter ? or in the speed of sound c{sub s}. Finally, we derive an upper bound on the parameter ? from the consistency of the perturbative expansion of the action for inflaton perturbations. This constraint can be used for an estimation of the signal-to-noise ratio, to show that the observable which is most sensitive to features is the power-spectrum. This conclusion would change if we consider the contemporary presence of a feature and a speed of sound c{sub s} < 1, as, in such a case, contributions from an oscillating folded configuration can potentially make the bispectrum the leading observable for feature models.

  16. Hints of Universality from Inflection Point Inflation 

    E-Print Network [OSTI]

    Downes, Sean Donovan

    2013-07-25

    . . . . . . . . . . . . . . . . . 20 III.1 A Vast Solution Space . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 III.2 Kachru-Kallosh-Linde-Trivedi Moduli Stabilization . . . . . . . . . . . . . . . . . . . 21 III.3 The Kallosh-Linde Problem... of quasi-de Sitter expansion [20]. D-brane dynamics, replete with their Dirac-Born-Infeld (DBI) action were used to study inflation in [21]. More exotic scenarios from the kinetic sector were also considered, notably Ghost Infla- tion [22]. Aside from...

  17. International energy annual 1997

    SciTech Connect (OSTI)

    1999-04-01

    The International Energy Annual presents an overview of key international energy trends for production, consumption, imports, and exports of primary energy commodities in over 220 countries, dependencies, and areas of special sovereignty. Also included are population and gross domestic product data, as well as prices for crude oil and petroleum products in selected countries. Renewable energy reported in the International Energy Annual includes hydroelectric power and geothermal, solar, and wind electric power. Also included are biomass electric power for Brazil and the US, and biomass, geothermal, and solar energy produced in the US and not used for electricity generation. This report is published to keep the public and other interested parties fully informed of primary energy supplies on a global basis. The data presented have been largely derived from published sources. The data have been converted to units of measurement and thermal values (Appendices E and F) familiar to the American public. 93 tabs.

  18. Higgs inflation in a radiative seesaw model

    E-Print Network [OSTI]

    Shinya Kanemura; Toshinori Matsui; Takehiro Nabeshima

    2013-04-13

    We investigate a simple model to explain inflation, neutrino masses and dark matter simultaneously. This is based on the so-called radiative seesaw model proposed by Ma in order to explain neutrino masses and dark matter by introducing a $Z_2$-odd isospin doublet scalar field and $Z_2$-odd right-handed neutrinos. We study the possibility that the Higgs boson as well as neutral components of the $Z_2$-odd scalar doublet field can satisfy conditions from slow-roll inflation and vacuum stability up to the inflation scale. We find that a part of parameter regions where these scalar fields can play a role of an inflaton is compatible with the current data from neutrino experiments and those of the dark matter abundance as well as the direct search results. A phenomenological consequence of this scenario results in a specific mass spectrum of scalar bosons, which can be tested at the LHC, the International Linear Collider and the Compact Linear Collider.

  19. Helical Phase Inflation and Monodromy in Supergravity Theory

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Li, Tianjun; Li, Zhijin; Nanopoulos, Dimitri V.

    2015-01-01

    We study helical phase inflation which realizes “monodromy inflation” in supergravity theory. In the model, inflation is driven by the phase component of a complex field whose potential possesses helicoid structure. We construct phase monodromy based on explicitly breaking global U ( 1 ) symmetry in the superpotential. By integrating out heavy fields, the phase monodromy from single complex scalar field is realized and the model fulfills natural inflation. The phase-axion alignment is achieved from explicitly symmetry breaking and gives super-Planckian phase decay constant. The F -term scalarmore »potential provides strong field stabilization for all the scalars except inflaton, which is protected by the approximate global U ( 1 ) symmetry. Besides, we show that helical phase inflation can be naturally realized in no-scale supergravity with S U ( 2,1 ) / S U ( 2 ) × U ( 1 ) symmetry since the supergravity setup needed for phase monodromy is automatically provided in the no-scale Kähler potential. We also demonstrate that helical phase inflation can be reduced to another well-known supergravity inflation model with shift symmetry. Helical phase inflation is free from the UV-sensitivity problem although there is super-Planckian field excursion, and it suggests that inflation can be effectively studied based on supersymmetric field theory while a UV-completed framework is not prerequisite. « less

  20. Winding out of the Swamp: Evading the Weak Gravity Conjecture with F-term Winding Inflation?

    E-Print Network [OSTI]

    Arthur Hebecker; Patrick Mangat; Fabrizio Rompineve; Lukas T. Witkowski

    2015-08-04

    We present a new model of large field inflation along a winding trajectory in the field space of two axionic fields, where the 'axions' originate from the complex structure moduli sector of a Calabi-Yau 3-fold at large complex structure. The winding trajectory arises from fixing one combination of axions by bulk fluxes and allows for a transplanckian effective field range. The inflaton potential arises from small 'instantonic' corrections to the geometry and realises natural inflation. By working in a regime of large complex structure for two complex structure moduli the inflaton potential can be made subdominant without severe tuning. We also discuss the impact of the recent 'no-go theorems' for transplanckian axion periodicities on our work. Interestingly, our setup seems to realise a loophole pointed out in arXiv:1503.00795 and arXiv:1503.04783: our construction is a candidate for a string theory model of large field inflation which is consistent with the mild form of the weak gravity conjecture for axions.

  1. January 2013 Annual Role and Responsibility Survey

    E-Print Network [OSTI]

    entered into a Conflict of Interest Management Plan or who are otherwise required as a condition conflicts of interest. It serves to ensure that the individual and institution are acting with integrityJanuary 2013 Annual Role and Responsibility Survey The State of Colorado, the Board of Governors

  2. Annual Reports

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B L O O D S TAPropaneandAn319 125 U.S.812AnnualFinalAnnual

  3. Annual Report

    Energy Savers [EERE]

    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 DeliciousMathematics And StatisticsProgram ManagerCorridor Designations inEnergy 4 Report AnnualAnnual Planning09

  4. Annual Report

    Broader source: Energy.gov (indexed) [DOE]

    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 Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i n c i p a l De p u t yWaste |4 2014 Annual Planning Summary for the2011 Annual

  5. Inflating a Rubber Balloon 6GEJPKECN 7PKXGTUKV[ $GTNKP )GTOCP[

    E-Print Network [OSTI]

    Struchtrup, Henning

    investigate what happens when a single balloon is inflated, say, by mouth. We simulate that process and show of a balloon by mouth. %! @B78?? represents the muscle forces that push the air into the balloon. #12;INFLATING A RUBBER BALLOON 571 Figure 2

  6. Food price inflation and children's schooling Michael Grimm

    E-Print Network [OSTI]

    Krivobokova, Tatyana

    Food price inflation and children's schooling Michael Grimm Institute of Social Studies, The Hague the impact of food price inflation on parental decisions to send their children to school. Moreover, I use the fact that food crop farmers and cotton farmers were exposed differently to that shock to estimate

  7. Towards the physical vacuum of cosmic inflation

    E-Print Network [OSTI]

    Jiang, Hongliang

    2015-01-01

    There have been long debates about the initial condition of inflationary perturbations. In this work we explicitly show the decay of excited states during inflation via interactions. For this purpose, we note that the folded shape non-Gaussianity can be interpreted as the decay of the non-Bunch-Davies initial condition. The one loop diagrams with non-Bunch-Davies propagators are calculated to uncover the decay of such excited states. The observed smallness of non-Gaussianity keeps the window open for probing inflationary initial conditions and trans-Planckian physics.

  8. Cosmology as Science?: From Inflation to Eternity

    ScienceCinema (OSTI)

    None

    2011-10-06

    The last decade or two have represented the golden age of observational cosmology, producing a revolution in our picture of the Universe on its largest scales, and perhaps also its smallest ones. I will argue that these recent development bring to the forefront some vexing questions about whether various fundamental assumptions about the universe are in fact falsifiable. I will focus on 3 issues: (1) "Proving" Inflation, (2) Dark Energy and Anthropic Arguments, and (3) Cosmology of the far future.Interview with Lawrence M. Krauss

  9. Experimental Modeling of Cosmological Inflation with Metamaterials

    E-Print Network [OSTI]

    Igor I. Smolyaninov; Yu-Ju Hung; Ehren Hwang

    2012-07-23

    Recently we demonstrated that mapping of monochromatic extraordinary light distribution in a hyperbolic metamaterial along some spatial direction may model the flow of time and create an experimental toy model of the big bang. Here we extend this model to emulate cosmological inflation. This idea is illustrated in experiments performed with two-dimensional plasmonic hyperbolic metamaterials. Spatial dispersion which is always present in hyperbolic metamaterials results in scale-dependent (fractal) structure of the inflationary "metamaterial spacetime". This feature of our model replicates hypothesized fractal structure of the real observable universe.

  10. Multi-field inflation from holography

    SciTech Connect (OSTI)

    Garriga, Jaume; Urakawa, Yuko [Departament de Física Fonamental i Institut de Ciències del Cosmos, Universitat de Barcelona, Martí i Franquès 1, 08028 Barcelona (Spain); Skenderis, Kostas, E-mail: jaume.garriga@ub.edu, E-mail: K.Skenderis@soton.ac.uk, E-mail: urakawa.yuko@h.mbox.nagoya-u.ac.jp [STAG Research Centre and Mathematical Sciences, University of Southampton, Southampton SO17 1BJ (United Kingdom)

    2015-01-01

    We initiate the study of multi-field inflation using holography. Bulk light scalar fields correspond to nearly marginal operators in the boundary theory and the dual quantum field theory is a deformation of a CFT by such operators. We compute the power spectra of adiabatic and entropy perturbations in a simple model and find that the adiabatic curvature perturbation is not conserved in the presence of entropy perturbations but becomes conserved when the entropy perturbations are set to zero or the model is effectively a single scalar model, in agreement with expectations from cosmological perturbation theory.

  11. Hamilton-Jacobi Formalism for Tachyon Inflation

    E-Print Network [OSTI]

    A. Aghamohammadi; A. Mohammadi; T. Golanbari; Kh. Saaidi

    2015-02-26

    Tachyon inflation is reconsidered by using the recent observational data obtained from Planck-2013 and BICEP2. The Hamilton-Jacobi formalism is picked out as a desirable approach in this work, which allows one to easily obtain the main parameters of the model. The Hubble parameter is supposed as a power-law and exponential function of the scalar field, and each case is considered separately. The constraints on the model, which come from observational data, are explained during the work. The results show a suitable value for the tensor spectral index and an appropriate form of the potential.

  12. Dissipative effects on reheating after inflation

    SciTech Connect (OSTI)

    Mukaida, Kyohei; Nakayama, Kazunori, E-mail: mukaida@hep-th.phys.s.u-tokyo.ac.jp, E-mail: kazunori@hep-th.phys.s.u-tokyo.ac.jp [Department of Physics, University of Tokyo, Bunkyo-ku, Tokyo 113-0033 (Japan)

    2013-03-01

    The inflaton must convert its energy into radiation after inflation, which, in a conventional scenario, is caused by the perturbative inflaton decay. This reheating process would be much more complicated in some cases: the decay products obtain masses from an oscillating inflaton and thermal environment, and hence the conventional reheating scenario can be modified. We study in detail processes of particle production from the inflaton, their subsequent thermalization and evolution of inflaton/plasma system by taking dissipation of the inflaton in a hot plasma into account. It is shown that the reheating temperature is significantly affected by these effects.

  13. The chaotic regime of D-term inflation

    SciTech Connect (OSTI)

    Buchmüller, W.; Domcke, V.

    2014-11-01

    We consider D-term inflation for small couplings of the inflaton to matter fields. Standard hybrid inflation then ends at a critical value of the inflaton field that exceeds the Planck mass. During the subsequent waterfall transition the inflaton continues its slow-roll motion, whereas the waterfall field rapidly grows by quantum fluctuations. Beyond the decoherence time, the waterfall field becomes classical and approaches a time-dependent minimum, which is determined by the value of the inflaton field and the self-interaction of the waterfall field. During the final stage of inflation, the effective inflaton potential is essentially quadratic, which leads to the standard predictions of chaotic inflation. The model illustrates how the decay of a false vacuum of GUT-scale energy density can end in a period of 'chaotic inflation'.

  14. Strong Planck constraints on braneworld and non-commutative inflation

    SciTech Connect (OSTI)

    Calcagni, Gianluca [Instituto de Estructura de la Materia, CSIC, Serrano 121, 28006 Madrid (Spain); Kuroyanagi, Sachiko; Ohashi, Junko; Tsujikawa, Shinji, E-mail: calcagni@iem.cfmac.csic.es, E-mail: skuro@rs.tus.ac.jp, E-mail: j1211703@ed.tus.ac.jp, E-mail: shinji@rs.kagu.tus.ac.jp [Department of Physics, Faculty of Science, Tokyo University of Science, 1-3, Kagurazaka, Shinjuku-ku, Tokyo 162-8601 (Japan)

    2014-03-01

    We place observational likelihood constraints on braneworld and non-commutative inflation for a number of inflaton potentials, using Planck, WMAP polarization and BAO data. Both braneworld and non-commutative scenarios of the kind considered here are limited by the most recent data even more severely than standard general-relativity models. At more than 95 % confidence level, the monomial potential V(?)??{sup p} is ruled out for p ? 2 in the Randall-Sundrum (RS) braneworld cosmology and, for p > 0, also in the high-curvature limit of the Gauss-Bonnet (GB) braneworld and in the infrared limit of non-commutative inflation, due to a large scalar spectral index. Some parameter values for natural inflation, small-varying inflaton models and Starobinsky inflation are allowed in all scenarios, although some tuning is required for natural inflation in a non-commutative spacetime.

  15. NREL Annual Environmental Performance Reports (Annual Site Environment...

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

    NREL Annual Environmental Performance Reports (Annual Site Environmental Reports) NREL Annual Environmental Performance Reports (Annual Site Environmental Reports) Every year NREL...

  16. The TT, TB, EB and BB correlations in anisotropic inflation

    SciTech Connect (OSTI)

    Chen, Xingang [Department of Physics, The University of Texas at Dallas, Richardson, TX 75083 (United States); Emami, Razieh [School of Physics, Institute for Research in Fundamental Sciences (IPM), P. O. Box 19395-5531, Tehran (Iran, Islamic Republic of); Firouzjahi, Hassan [School of Astronomy, Institute for Research in Fundamental Sciences (IPM), P. O. Box 19395-5531, Tehran (Iran, Islamic Republic of); Wang, Yi, E-mail: Xingang.Chen@utdallas.edu, E-mail: emami@ipm.ir, E-mail: firouz@ipm.ir, E-mail: yw366@cam.ac.uk [Centre for Theoretical Cosmology, DAMTP, University of Cambridge, Cambridge CB3 0WA (United Kingdom)

    2014-08-01

    The ongoing and future experiments will measure the B-mode from different sky coverage and frequency bands, with the potential to reveal non-trivial features in polarization map. In this work we study the TT, TB, EB and BB correlations associated with the B-mode polarization of CMB map in models of charged anisotropic inflation. The model contains a chaotic-type large field complex inflaton which is charged under the U(1) gauge field. We calculate the statistical anisotropies generated in the power spectra of the curvature perturbation, the tensor perturbation and their cross-correlation. It is shown that the asymmetry in tensor power spectrum is a very sensitive probe of the gauge coupling. While the level of statistical anisotropy in temperature power spectrum can be small and satisfy the observational bounds, the interactions from the gauge coupling can induce large directional dependence in tensor modes. This will leave interesting anisotropic fingerprints in various correlations involving the B-mode polarization such as the TB cross-correlation which may be detected in upcoming Planck polarization data. In addition, the TT correlation receives an anisotropic contribution from the tensor sector which naturally decays after l ?> 100. We expect that the mechanism of using tensor sector to induce asymmetry at low l to be generic which can also be applied to address other low l CMB anomalies.

  17. Interested Parties - MEMA | Department of Energy

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

    MEMA Interested Parties - MEMA 08-14-10MEMA.pdf More Documents & Publications Interested Parties - Chrystler Interested Parties - Smith Dawson & Andrews Interested Parties - NYU...

  18. Interests

    E-Print Network [OSTI]

    $author.value

    Resources ... Their "eigenfunctions", called resonant states, however are required to be outgoing, instead of having finite energy. Resonances are complex ...

  19. Higgs inflation in Gauss-Bonnet braneworld

    E-Print Network [OSTI]

    Rong-Gen Cai; Zong-Kuan Guo; Shao-Jiang Wang

    2015-09-12

    The measured masses of the Higgs boson and top quark indicate that the effective potential of the standard model either develops an unstable electroweak vacuum or stands stable all the way up to the Planck scale. In the latter case in which the top quark mass is about $2\\sigma$ below its present central value, the Higgs boson can be the inflaton with the help of a large nonminimal coupling to curvature in four dimensions. We propose a scenario in which the Higgs boson can be the inflaton in a five-dimensional Gauss-Bonnet braneworld model to solve both the unitarity and stability problems which usually plague Higgs inflation. We find that in order for Higgs inflation to happen successfully in the Gauss-Bonnet regime, the extra dimension scale must appear roughly in the range between the TeV scale and the instability scale of standard model. At the tree level, our model can give rise to a naturally small nonminimal coupling $\\xi\\sim\\mathcal{O}(1)$ for the Higgs quartic coupling $\\lambda\\sim\\mathcal{O}(0.1)$ if the extra dimension scale lies at the TeV scale. At the loop level, the inflationary predictions at the tree level are preserved. Our model can be confronted with future experiments and observations from both particle physics and cosmology.

  20. Punctuated inflation and the low CMB multipoles

    SciTech Connect (OSTI)

    Jain, Rajeev Kumar; Sriramkumar, L. [Harish-Chandra Research Institute, Chhatnag Road, Jhunsi, Allahabad 211 019 (India)] [Harish-Chandra Research Institute, Chhatnag Road, Jhunsi, Allahabad 211 019 (India); Chingangbam, Pravabati [Korea Institute for Advanced Study, 207-43 Cheongnyangni 2-dong, Dongdaemun-gu, Seoul 130-722 (Korea, Republic of)] [Korea Institute for Advanced Study, 207-43 Cheongnyangni 2-dong, Dongdaemun-gu, Seoul 130-722 (Korea, Republic of); Gong, Jinn-Ouk [Department of Physics, University of Wisconsin-Madison, 1150 University Avenue, Madison, WI 53706-1390 (United States)] [Department of Physics, University of Wisconsin-Madison, 1150 University Avenue, Madison, WI 53706-1390 (United States); Souradeep, Tarun, E-mail: rajeev@hri.res.in, E-mail: prava@kias.re.kr, E-mail: jgong@hep.wisc.edu, E-mail: sriram@hri.res.in, E-mail: tarun@iucaa.ernet.in [IUCAA, Post Bag 4, Ganeshkhind, Pune 411 007 (India)] [IUCAA, Post Bag 4, Ganeshkhind, Pune 411 007 (India)

    2009-01-15

    We investigate inflationary scenarios driven by a class of potentials which are similar in form to those that arise in certain minimal supersymmetric extensions of the standard model. We find that these potentials allow a brief period of departure from inflation sandwiched between two stages of slow roll inflation. We show that such a background behavior leads to a step like feature in the scalar power spectrum. We set the scales such that the drop in the power spectrum occurs at a length scale that corresponds to the Hubble radius today - a feature that seems necessary to explain the lower power observed in the quadrupole moment of the Cosmic Microwave Background (CMB) anisotropies. We perform a Markov Chain Monte Carlo analysis to determine the values of the model parameters that provide the best fit to the recent WMAP 5-year data for the CMB angular power spectrum. We find that an inflationary spectrum with a suppression of power at large scales that we obtain leads to a much better fit (with just one extra parameter, {chi}{sub eff}{sup 2} improves by 6.62) of the observed data when compared to the best fit reference {Lambda}CDM model with a featureless, power law, primordial spectrum.

  1. Generation of coherent structures after cosmic inflation

    SciTech Connect (OSTI)

    Gleiser, Marcelo; Stamatopoulos, Nikitas [Department of Physics and Astronomy, Dartmouth College, Hanover, New Hampshire 03755 (United States); Graham, Noah [Department of Physics, Middlebury College, Middlebury, Vermont 05753 (United States)

    2011-05-01

    We investigate the nonlinear dynamics of hybrid inflation models, which are characterized by two real scalar fields interacting quadratically. We start by solving numerically the coupled Klein-Gordon equations in static Minkowski spacetime, searching for possible coherent structures. We find long-lived, localized configurations, which we identify as a new kind of oscillon. We demonstrate that these two-field oscillons allow for ''excited'' states with much longer lifetimes than those found in previous studies of single-field oscillons. We then solve the coupled field equations in an expanding Friedmann-Robertson-Walker spacetime, finding that as the field responsible for inflating the Universe rolls down to oscillate about its minimum, it triggers the formation of long-lived two-field oscillons, which can contribute up to 20% of the total energy density of the Universe. We show that these oscillons emerge for a wide range of parameters consistent with WMAP 7-year data. These objects contain total energy of about 25x10{sup 20} GeV, localized in a region of approximate radius 6x10{sup -26} cm. We argue that these structures could have played a key role during the reheating of the Universe.

  2. 2010 ANNUAL RESEARCH REPORT 2010 ANNUAL RESEARCH REPORT 2010 ANNUAL RESEARCH REPORT RESEARCH REPORT2010ANNUAL RESEARCH REPORT2010ANNUAL RESEARCH REPORT

    E-Print Network [OSTI]

    Hill, Jeffrey E.

    2010 ANNUAL RESEARCH REPORT 2010 ANNUAL RESEARCH REPORT 2010 ANNUAL RESEARCH REPORT RESEARCH REPORT2010ANNUAL RESEARCH REPORT2010ANNUAL RESEARCH REPORT 2010 ANNUAL RESEARCH REPORT 2010 ANNUAL RESEARCH REPORT 2010 ANNUAL RESEARCH REPORT RESEARCH REPORT2010ANNUAL RESEARCH REPORT2010ANNUAL RESEARCH REPORT

  3. Power spectrum for inflation models with quantum and thermal noises

    E-Print Network [OSTI]

    Rudnei O. Ramos; L. A. da Silva

    2013-03-25

    We determine the power spectrum for inflation models covering all regimes from cold (isentropic) to warm (nonisentropic) inflation. We work in the context of the stochastic inflation approach, which can nicely describe both types of inflationary regimes concomitantly. A throughout analysis is carried out to determine the allowed parameter space for simple single field polynomial chaotic inflation models that is consistent with the most recent cosmological data from the nine-year Wilkinson Microwave Anisotropy Probe (WMAP) and in conjunction with other observational cosmological sources. We present the results for both the amplitude of the power spectrum, the spectral index and for the tensor to scalar curvature perturbation amplitude ratio. We briefly discuss cases when running is present. Despite single field polynomial-type inflaton potential models be strongly disfavored, or even be already ruled out in their simplest versions in the case of cold inflation, this is not the case for nonisentropic inflation models in general (warm inflation in particular), though higher order polynomial potentials (higher than quartic order) tend to become less favorable also in this case, presenting a much smaller region of parameter space compatible with the recent observational cosmological data. Our findings also remain valid in face of the recently released Planck results.

  4. Power spectrum for inflation models with quantum and thermal noises

    SciTech Connect (OSTI)

    Ramos, Rudnei O.; Silva, L.A. da, E-mail: rudnei@uerj.br, E-mail: las.leandro@gmail.com [Departamento de Física Teórica, Universidade do Estado do Rio de Janeiro, 20550-013 Rio de Janeiro, RJ (Brazil)

    2013-03-01

    We determine the power spectrum for inflation models covering all regimes from cold (isentropic) to warm (nonisentropic) inflation. We work in the context of the stochastic inflation approach, which can nicely describe both types of inflationary regimes concomitantly. A throughout analysis is carried out to determine the allowed parameter space for simple single field polynomial chaotic inflation models that is consistent with the most recent cosmological data from the nine-year Wilkinson Microwave Anisotropy Probe (WMAP) and in conjunction with other observational cosmological sources. We present the results for both the amplitude of the power spectrum, the spectral index and for the tensor to scalar curvature perturbation amplitude ratio. We briefly discuss cases when running is present. Despite single field polynomial-type inflaton potential models be strongly disfavored, or even be already ruled out in their simplest versions in the case of cold inflation, this is not the case for nonisentropic inflation models in general (warm inflation in particular), though higher order polynomial potentials (higher than quartic order) tend to become less favorable also in this case, presenting a much smaller region of parameter space compatible with the recent observational cosmological data.

  5. The Possibility of Inflation in Asymptotically Safe Gravity

    E-Print Network [OSTI]

    Sungwook E. Hong; Young Jae Lee; Heeseung Zoe

    2012-06-13

    We examine the inflationary modes in the cubic curvature theories in the context of asymptotically safe gravity. On the phase space of the Hubble parameter, there exists a critical point which corresponds to the slow-roll inflation in Einstein frame. Most of the e-foldings are attained around the critical point for each inflationary trajectories. If the coupling constants $g_i$ have the parametric relations generated as the power of the relative energy scale of inflation $H_0$ to the ultraviolet cutoff $\\Lambda$, a successful inflation with more than 60 e-foldings occurs near the critical point.

  6. Spectral indices in Eddington-inspired Born-Infeld inflation

    E-Print Network [OSTI]

    Inyong Cho; Jinn-Ouk Gong

    2015-06-23

    We investigate the scalar and the tensor spectral indices of the quadratic inflation model in Eddington-inspired Born-Infeld (EiBI) gravity. We find the EiBI corrections to the spectral indices are of second and first order in the slow-roll approximation for the scalar and the tensor perturbations respectively. This is very promising since the quadratic inflation model in general relativity provides a very nice fit for the spectral indices. Together with the suppression of the tensor-to-scalar ratio EiBI inflation is well along with the observational data.

  7. Statistical anisotropies in gravitational waves in solid inflation

    SciTech Connect (OSTI)

    Akhshik, Mohammad; Emami, Razieh; Firouzjahi, Hassan; Wang, Yi E-mail: emami@ipm.ir E-mail: yw366@cam.ac.uk

    2014-09-01

    Solid inflation can support a long period of anisotropic inflation. We calculate the statistical anisotropies in the scalar and tensor power spectra and their cross-correlation in anisotropic solid inflation. The tensor-scalar cross-correlation can either be positive or negative, which impacts the statistical anisotropies of the TT and TB spectra in CMB map more significantly compared with the tensor self-correlation. The tensor power spectrum contains potentially comparable contributions from quadrupole and octopole angular patterns, which is different from the power spectra of scalar, the cross-correlation or the scalar bispectrum, where the quadrupole type statistical anisotropy dominates over octopole.

  8. Feigning interest in relationship initiation 

    E-Print Network [OSTI]

    Leck, Kira Marie

    1996-01-01

    This study examined the behaviors that people engage in when they attempt to feign romantic interest and noninterest in a potential dating partner. Participants were videotaped as they answered questions posed by an opposite-sex "interviewer...

  9. The full squeezed CMB bispectrum from inflation

    E-Print Network [OSTI]

    Antony Lewis

    2012-06-19

    The small-scale CMB temperature we observe on the sky is modulated by perturbations that were super-horizon at recombination, giving differential focussing and lensing that generate a non-zero bispectrum even for single-field inflation where local physics is identical. Understanding this signal is important for primordial non-Gaussianity studies and also parameter constraints from the CMB lensing bispectrum signal. Because of cancellations individual effects can appear larger or smaller than they are in total, so a full analysis may be required to avoid biases. I relate angular scales on the sky to physical scales at recombination using the optical equations, and give full-sky results for the large-scale adiabatic temperature bispectrum from Ricci focussing (expansion of the ray bundle), Weyl lensing (convergence and shear), and temperature redshift modulations of small-scale power. The delta N expansion of the beam is described by the constant temperature 3-curvature, and gives a nearly-observable version of the consistency relation prediction from single-field inflation. I give approximate arguments to quantify the likely importance of dynamical effects, and argue that they can be neglected for modulation scales l <~ 100, which is sufficient for lensing studies and also allows robust tests of local primordial non-Gaussianity using only the large-scale modulation modes. For accurate numerical results early and late-time ISW effects must be accounted for, though I confirm that the late-time non-linear Rees-Sciama contribution is negligible compared to other more important complications. The total corresponds to f_NL ~ 7 for Planck-like temperature constraints and f_NL ~ 11 for cosmic-variance limited data to lmax=2000. Temperature lensing bispectrum estimates are affected at the 0.2 sigma level by Ricci focussing, and up to 0.5 sigma with polarization.

  10. Annual Report

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B L O O D S TAPropaneandAn319 125 U.S.812Annual ProgressANNUALY

  11. Annual Report

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B L O O D S TAPropaneandAn319 125 U.S.812Annual

  12. Annual Reports

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.Theory of raregovAboutRecovery ActTools to someone by AllocationAnnual Energy

  13. Annual Report

    Broader source: Energy.gov (indexed) [DOE]

    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 Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i n c i p a l De p u t yWaste |4 2014 Annual Planning Summary for the2011

  14. From SupernovaeFrom Supernovae to Inflationto Inflation

    E-Print Network [OSTI]

    Yamamoto, Hirosuke

    From SupernovaeFrom Supernovae to Inflationto Inflation Katsuhiko SatoKatsuhiko Sato 1)Department.4. NucleosynthesisNucleosynthesis in supernovaein supernovae II.II. ParticleParticle cosmologycosmology andand Early

  15. Characterizing and Mitigating Work Time Inflation in Task Parallel Programs

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Olivier, Stephen L.; de Supinski, Bronis R.; Schulz, Martin; Prins, Jan F.

    2013-01-01

    Task parallelism raises the level of abstraction in shared memory parallel programming to simplify the development of complex applications. However, task parallel applications can exhibit poor performance due to thread idleness, scheduling overheads, and work time inflation – additional time spent by threads in a multithreaded computation beyond the time required to perform the same work in a sequential computation. We identify the contributions of each factor to lost efficiency in various task parallel OpenMP applications and diagnose the causes of work time inflation in those applications. Increased data access latency can cause significant work time inflation in NUMAmore »systems. Our locality framework for task parallel OpenMP programs mitigates this cause of work time inflation. Our extensions to the Qthreads library demonstrate that locality-aware scheduling can improve performance up to 3X compared to the Intel OpenMP task scheduler. « less

  16. Cosmological moduli problem in large volume scenario and thermal inflation

    SciTech Connect (OSTI)

    Choi, Kiwoon [Department of Physics, KAIST, Daejeon 305-701 (Korea, Republic of); Park, Wan-Il [School of Physics, KIAS, Seoul 130-722 (Korea, Republic of); Shin, Chang Sub, E-mail: kchoi@kaist.ac.kr, E-mail: wipark@kias.re.kr, E-mail: csshin@apctp.org [APCTP, Pohang, Gyeongbuk 790-784 (Korea, Republic of)

    2013-03-01

    We show that in a large volume scenario of type IIB string or F-theory compactifications, single thermal inflation provides only a partial solution to the cosmological problem of the light volume modulus. We then clarify the conditions for double thermal inflation, being a simple extension of the usual single thermal inflation scenario, to solve the cosmological moduli problem in the case of relatively light moduli masses. Using a specific example, we demonstrate that double thermal inflation can be realized in large volume scenario in a natural manner, and the problem of the light volume modulus can be solved for the whole relevant mass range. We also find that right amount of baryon asymmetry and dark matter can be obtained via a late-time Affleck-Dine mechanism and the decays of the visible sector NLSP to flatino LSP.

  17. Annual Reports | Department of Energy

    Broader source: Energy.gov (indexed) [DOE]

    in PDF and will require Adobe Reader for viewing. Freedom of Information Act Annual Reports Annual Report for 2014 Annual Report for 2013 Annual Report for 2012 Annual Report...

  18. Observable Gravitational Waves From Kinetically Modified Non-Minimal Inflation

    E-Print Network [OSTI]

    C. Pallis

    2015-10-08

    We consider Supersymmetric (SUSY) and non-SUSY models of chaotic inflation based on the simplest power-law potential with exponents n=2 and 4. We propose a convenient non-minimal coupling to gravity and a non-minimal kinetic term which ensure, mainly for n=4, inflationary observables favored by the BICEP2/Keck Array and Planck results. Inflation can be attained for subplanckian inflaton values with the corresponding effective theories retaining the perturbative unitarity up to the Planck scale.

  19. Observable Gravitational Waves From Kinetically Modified Non-Minimal Inflation

    E-Print Network [OSTI]

    Pallis, C

    2015-01-01

    We consider Supersymmetric (SUSY) and non-SUSY models of chaotic inflation based on the simplest power-law potential with exponents n=2 and 4. We propose a convenient non-minimal coupling to gravity and a non-minimal kinetic term which ensure, mainly for n=4, inflationary observables favored by the BICEP2/Keck Array and Planck results. Inflation can be attained for subplanckian inflaton values with the corresponding effective theories retaining the perturbative unitarity up to the Planck scale.

  20. Inflatable containment diaphragm for sealing and removing stacks

    DOE Patents [OSTI]

    Meskanick, G.R.; Rosso, D.T.

    1993-04-13

    A diaphragm with an inflatable torus-shaped perimeter is used to seal at least one end of a stack so that debris that might be hazardous will not be released during removal of the stack. A diaphragm is inserted and inflated in the lower portion of a stack just above where the stack is to be cut such that the perimeter of the diaphragm expands and forms a seal against the interior surface of the stack.

  1. Inflation beyond T-models and primordial B-modes

    E-Print Network [OSTI]

    Yi-Fu Cai; Jinn-Ouk Gong; Shi Pi

    2014-09-30

    We describe extended theories which shares the gauge transformation symmetry of the T-models, and takes the T-models as well as Starobinsky model as special cases. We derive a general relation between the two slow-roll parameters, and find that a large class of models can be embedded. Such models include more general Starobinsky-like inflation as well as the chaotic inflation with a large tensor-to-scalar ratio consistent with the BICEP2 result.

  2. R{sup 2}-inflation with conformal SM Higgs field

    SciTech Connect (OSTI)

    Gorbunov, Dmitry; Tokareva, Anna E-mail: tokareva@ms2.inr.ac.ru

    2013-12-01

    We introduce conformal coupling of the Standard Model Higgs field to gravity and discuss the subsequent modification of R{sup 2}-inflation. The main observation is a lower temperature of reheating which happens mostly through scalaron decays into gluons due to the conformal (trace) anomaly. This modifies all predictions of the original R{sup 2}-inflation. To the next-to-leading order in slow roll parameters we calculate amplitudes and indices of scalar and tensor perturbations produced at inflation. The results are compared to the next-to-leading order predictions of R{sup 2}-inflation with minimally coupled Higgs field and of Higgs-inflation. We discuss additional features in gravity wave signal that may help to distinguish the proposed variant of R{sup 2}-inflation. Remarkably, the features are expected in the region available for study at future experiments like BBO and DECIGO. Finally, we check that (meta)stability of electroweak vacuum in the cosmological model is consistent with recent results of searches for the Higgs boson at LHC.

  3. Folded inflatable protective device and method for making same

    DOE Patents [OSTI]

    Behr, V.L.; Nelsen, J.M.; Gwinn, K.W.

    1998-10-20

    An apparatus and method are disclosed for making an inflatable protective device made of lightweight material that can withstand the initial stress from inflation and enhance radial inflation. The device includes a cushion and an inflator port. The invention further includes several stacks of folded cushion material including a combination of full-width stacks and half-width stacks: a first full-width stack defined by one or more fan folds in a first lateral half of the cushion wherein the folds are substantially centered above a first center line and are substantially over the inflator port; a second full-width stack defined by one or more fan folds in a second lateral half of the cushion wherein the folds are substantially centered above the first center line and substantially over the inflator port in the first full-width stack; a first half-width stack defined by a plurality of fan folds in the bottom of the cushion where neither edge of each fold extends substantially over the second center line; and a second half-width stack defined by a plurality of fan folds in the top of the cushion wherein neither edge of each fold extends substantially over the second center line. 22 figs.

  4. Folded inflatable protective device and method for making same

    DOE Patents [OSTI]

    Behr, Vance L. (Albuquerque, NM); Nelsen, James M. (Albuquerque, NM); Gwinn, Kenneth W. (Cedar Crest, NM)

    1998-01-01

    An apparatus and method for making an inflatable protective device made of lightweight material that can withstand the initial stress from inflation and enhance radial inflation. The device includes a cushion and an inflator port. The invention further includes several stacks of folded cushion material including a combination of full-width stacks and half-width stacks: a first full-width stack defined by one or more fan folds in a first lateral half of the cushion wherein the folds are substantially centered above a first center line and are substantially over the inflator port; a second full-width stack defined by one or more fan folds in a second lateral half of the cushion wherein the folds are substantially centered above the first center line and substantially over the inflator port in the first full-width stack; a first half-width stack defined by a plurality of fan folds in the bottom of the cushion where neither edge of each fold extends substantially over the second center line; and a second half-width stack defined by a plurality of fan folds in the top of the cushion wherein neither edge of each fold extends substantially over the second center line.

  5. Delaying the waterfall transition in warm hybrid inflation

    SciTech Connect (OSTI)

    Bastero-Gil, Mar [Departamento de Física Teórica y del Cosmos, Universidad de Granada, Granada, 18071 (Spain); Berera, Arjun; Metcalf, Thomas P. [SUPA, School of Physics and Astronomy, University of Edinburgh, Mayfield Road, Edinburgh, EH9 3JZ (United Kingdom); Rosa, João G., E-mail: mbg@ugr.es, E-mail: ab@ph.ed.ac.uk, E-mail: t.p.metcalf@ed.ac.uk, E-mail: joao.rosa@ua.pt [Departamento de Física da Universidade de Aveiro and I3N, Campus de Santiago, Aveiro, 3810-183 (Portugal)

    2014-03-01

    We analyze the dynamics and observational predictions of supersymmetric hybrid inflation in the warm regime, where dissipative effects are mediated by the waterfall fields and their subsequent decay into light degrees of freedom. This produces a quasi-thermal radiation bath with a slowly-varying temperature during inflation and further damps the inflaton's motion, thus prolonging inflation. As in the standard supercooled scenario, inflation ends when the waterfall fields become tachyonic and can no longer sustain a nearly constant vacuum energy, but the interaction with the radiation bath makes the waterfall fields effectively heavier and delays the phase transition to the supersymmetric minimum. In this work, we analyze for the first time the effects of finite temperature corrections and SUSY mass splittings on the quantum effective potential and the resulting dissipation coefficient. We show, in particular, that dissipation can significantly delay the onset of the tachyonic instability to yield 50–60 e-folds of inflation and an observationally consistent primordial spectrum, which is not possible in the standard supercooled regime when inflation is driven by radiative corrections.

  6. Interested Parties - Chrystler | Department of Energy

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

    Parties - Chrystler 06-22-10Chrystler.pdf More Documents & Publications Interested Parties - Smith Dawson & Andrews Interested Parties - Myriant Interested Parties - Dow Chemical...

  7. Interests Diffusion in Social Networks

    E-Print Network [OSTI]

    D'Agostino, Gregorio; De Nicola, Antonio; Tucci, Salvatore

    2015-01-01

    Understanding cultural phenomena on Social Networks (SNs) and exploiting the implicit knowledge about their members is attracting the interest of different research communities both from the academic and the business side. The community of complexity science is devoting significant efforts to define laws, models, and theories, which, based on acquired knowledge, are able to predict future observations (e.g. success of a product). In the mean time, the semantic web community aims at engineering a new generation of advanced services by defining constructs, models and methods, adding a semantic layer to SNs. In this context, a leapfrog is expected to come from a hybrid approach merging the disciplines above. Along this line, this work focuses on the propagation of individual interests in social networks. The proposed framework consists of the following main components: a method to gather information about the members of the social networks; methods to perform some semantic analysis of the Domain of Interest; a p...

  8. Modified natural inflation: A small single field model with a large tensor to scalar ratio

    E-Print Network [OSTI]

    Debaprasad Maity; Pankaj Saha

    2015-01-09

    In this paper we explored in detail a phenomenological model of modified single field natural inflation in light of recent cosmological experiments, BICEP2. Our main goal is to construct an inflationary model which not only predicts the important cosmological quantities such as $(n_s, r)$ compatible with experimental observation, but also is consistent with the low energy effective theory framework. Therefore, all the fundamental scale apart from $M_p$ and quantities of our interest should be within the sub-Planckian region. In order to achieve our goal we modify the usual single field natural inflationary model by a specific form of higher derivative kinetic term called kinetic gravity braiding (KGB). One of our guiding principles to construct such a model is the constant shift symmetry of the axion. We have chosen the form of the KGB term in such a way that it predicts the required value of $n_s\\simeq 0.96$ and a large tensor to scalar ratio $r> 0.1$. Importantly for a wide range of parameter space our model has sub-Planckian axion decay constant $f$ and the scale of inflation $\\Lambda$. However, the reheating after the end of inflation limits the value of $f$ so that we are unable to get $f$ to be significantly lower than $M_p$. Furthermore, we find sub-Planckian field excursion for the axion field $\\Delta \\phi \\simeq f$ for the sufficient number of e-folding ${\\cal N} \\gtrsim 50 $. We also discussed in detail about the natural preheating mechanism in our model based on the recently proposed Chern-Simon coupling. We found this gravity mediated preheating is very difficult to achieve in our model. With our general analytic argument, we also would like to emphasize that Chern-Simons mediated preheating is very unlikely to happen in any slow roll inflationary model.

  9. 2008 Annual Report

    SciTech Connect (OSTI)

    none,

    2008-01-01

    This annual report includes: a brief overview of Western; FY 2008 operational highlights; and financial data.

  10. Cascading dust inflation in Born-Infeld gravity

    E-Print Network [OSTI]

    Jose Beltran Jimenez; Lavinia Heisenberg; Gonzalo J. Olmo; Christophe Ringeval

    2015-09-04

    In the framework of Born-Infeld inspired gravity theories, which deviates from General Relativity (GR) in the high curvature regime, we discuss the viability of Cosmic Inflation without scalar fields. For energy densities higher than the new mass scale of the theory, a gravitating dust component is shown to generically induce an accelerated expansion of the Universe. Within such a simple scenario, inflation gracefully exits when the GR regime is recovered, but the Universe would remain matter dominated. In order to implement a reheating era after inflation, we then consider inflation to be driven by a mixture of unstable dust species decaying into radiation. Because the speed of sound gravitates within the Born-Infeld model under consideration, our scenario ends up being predictive on various open questions of the inflationary paradigm. The total number of e-folds of acceleration is given by the lifetime of the unstable dust components and is related to the duration of reheating. As a result, inflation does not last much longer than the number of e-folds of deceleration allowing a small spatial curvature and large scale deviations to isotropy to be observable today. Energy densities are self-regulated as inflation can only start for a total energy density less than a threshold value, again related to the species' lifetime. Above this threshold, the Universe may bounce thereby avoiding a singularity. Another distinctive feature is that the accelerated expansion is of the superinflationary kind, namely the first Hubble flow function is negative. We show however that the tensor modes are never excited and the tensor-to-scalar ratio is always vanishing, independently of the energy scale of inflation.

  11. Uplifting and Inflation with D3 Branes

    E-Print Network [OSTI]

    Cliff P. Burgess; James M. Cline; Keshav Dasgupta; Hassan Firouzjahi

    2006-10-30

    Back-reaction effects can modify the dynamics of mobile D3 branes moving within type IIB vacua, in a way which has recently become calculable. We identify some of the ways these effects can alter inflationary scenarios, with the following three results: (1) By examining how the forces on the brane due to moduli-stabilizing interactions modify the angular motion of D3 branes moving in Klebanov-Strassler type throats, we show how previous slow-roll analyses can remain unchanged for some brane trajectories, while being modified for other trajectories. These forces cause the D3 brane to sink to the bottom of the throat except in a narrow region close to the D7 brane, and do not ameliorate the \\eta-problem of slow roll inflation in these throats; (2) We argue that a recently-proposed back-reaction on the dilaton field can be used to provide an alternative way of uplifting these compactifications to Minkowski or De Sitter vacua, without the need for a supersymmetry-breaking anti-D3 brane; and (3) by including also the D-term forces which arise when supersymmetry-breaking fluxes are included on D7 branes we identify the 4D supergravity interactions which capture the dynamics of D3 motion in D3/D7 inflationary scenarios. The form of these potentials sheds some light on recent discussions of how symmetries constrain D term interactions in the low-energy theory.

  12. Gravitational Waves and the Scale of Inflation

    E-Print Network [OSTI]

    Mehrdad Mirbabayi; Leonardo Senatore; Eva Silverstein; Matias Zaldarriaga

    2015-04-17

    We revisit alternative mechanisms of gravitational wave production during inflation and argue that they generically emit a non-negligible amount of scalar fluctuations. We find the scalar power is larger than the tensor power by a factor of order $1/\\epsilon^2$. For an appreciable tensor contribution the associated scalar emission completely dominates the zero-point fluctuations of inflaton, resulting in a tensor-to-scalar ratio $r\\sim \\epsilon^2$. A more quantitative result can be obtained if one further assumes that gravitational waves are emitted by localized sub-horizon processes, giving $r_{\\rm max} \\simeq 0.3 \\epsilon^2$. However, $\\epsilon$ is generally time dependent, and this result for $r$ depends on its instantaneous value during the production of the sources, rather than just its average value, somewhat relaxing constraints from the tilt $n_s$. We calculate the scalar 3-point correlation function in the same class of models and show that non-Gaussianity cannot be made arbitrarily small, i.e. $f_{NL} \\geq 1$, independently of the value of $r$. Possible exceptions in multi-field scenarios are discussed.

  13. Holographic Theories of Inflation and Fluctuations

    E-Print Network [OSTI]

    Tom Banks; Willy Fischler

    2011-12-06

    The theory of holographic space-time (HST) generalizes both string theory and quantum field theory. It provides a geometric rationale for supersymmetry (SUSY) and a formalism in which super-Poincare invariance follows from Poincare invariance. HST unifies particles and black holes, realizing both as excitations of non-commutative geometrical variables on a holographic screen. Compact extra dimensions are interpreted as finite dimensional unitary representations of super- algebras, and have no moduli. Full field theoretic Fock spaces, and continuous moduli are both emergent phenomena of super-Poincare invariant limits in which the number of holographic degrees of freedom goes to infinity. Finite radius de Sitter (dS) spaces have no moduli, and break SUSY with a gravitino mass scaling like $\\Lambda^{1/4}$. We present a holographic theory of inflation and fluctuations. The inflaton field is an emergent concept, describing the geometry of an underlying HST model, rather than "a field associated with a microscopic string theory". We argue that the phrase in quotes is meaningless in the HST formalism.

  14. Earth Sciences Division. Annual report 1979

    SciTech Connect (OSTI)

    Not Available

    1980-07-01

    This annual report contains articles describing the research programs conducted during the year. Major areas of interest include geothermal exploration technology, geothermal energy conversion technology, reservoir engineering, geothermal environmental research, basic geosciences studies, applied geosciences studies, nuclear waste isolation, and marine sciences. (ACR)

  15. Inflation, Symmetry, and B-Modes

    E-Print Network [OSTI]

    Mark P. Hertzberg

    2015-07-27

    We examine the role of using symmetry and effective field theory in inflationary model building. We describe the standard formulation of starting with an approximate shift symmetry for a scalar field, and then introducing corrections systematically in order to maintain control over the inflationary potential. We find that this leads to models in good agreement with recent data. On the other hand, there are attempts in the literature to deviate from this paradigm by invoking other symmetries and corrections. In particular: in a suite of recent papers, several authors have made the claim that standard Einstein gravity with a cosmological constant and a massless scalar carries conformal symmetry. They further claim that such a theory carries another hidden symmetry; a global SO(1,1) symmetry. By deforming around the global SO(1,1) symmetry, they are able to produce a range of inflationary models with asymptotically flat potentials, whose flatness is claimed to be protected by these symmetries. These models tend to give rise to B-modes with small amplitude. Here we explain that these authors are merely introducing a redundancy into the description, not an actual conformal symmetry. Furthermore, we explain that the only real (global) symmetry in these models is not at all hidden, but is completely manifest when expressed in the Einstein frame; it is in fact the shift symmetry of a scalar field. When analyzed systematically as an effective field theory, deformations do not generally produce asymptotically flat potentials and small B-modes, but other types of potentials with B-modes of appreciable amplitude. Such simple models typically also produce the observed red spectral index, Gaussian fluctuations, etc. In short: simple models of inflation, organized by expanding around a shift symmetry, are in excellent agreement with recent data.

  16. Modeling Animal-Vehicle Collisions Using Diagonal Inflated Bivariate Poisson Regression

    E-Print Network [OSTI]

    Washington at Seattle, University of

    1 Modeling Animal-Vehicle Collisions Using Diagonal Inflated Bivariate Poisson Regression of highway AVCs, this study adopts a diagonal inflated bivariate Poisson regression method, an inflated version of bivariate Poisson regression model, to fit the reported AVC and carcass removal data sets

  17. The physics of business cycles and inflation Hans G. Danielmeyer and Thomas Martinetz

    E-Print Network [OSTI]

    of the inflation rate are due to 3 crude oil price shocks. Natural damping prohibits cycles (dashed envelope lines show the increase of inflation due to the crude oil price shocks of the Jan Kippur Embargo consecutive cycles observed in the USA for employment and inflation. They are driven by three oil price shocks

  18. Generalized Uncertainty Principle and Recent Cosmic Inflation Observations

    E-Print Network [OSTI]

    Abdel Nasser Tawfik; Abdel Magied Diab

    2014-10-29

    The recent background imaging of cosmic extragalactic polarization (BICEP2) observations are believed as an evidence for the cosmic inflation. BICEP2 provided a first direct evidence for the inflation, determined its energy scale and debriefed witnesses for the quantum gravitational processes. The ratio of scalar-to-tensor fluctuations $r$ which is the canonical measurement of the gravitational waves, was estimated as $r=0.2_{-0.05}^{+0.07}$. Apparently, this value agrees well with the upper bound value corresponding to PLANCK $r\\leq 0.012$ and to WMAP9 experiment $r=0.2$. It is believed that the existence of a minimal length is one of the greatest predictions leading to modifications in the Heisenberg uncertainty principle or a GUP at the Planck scale. In the present work, we investigate the possibility of interpreting recent BICEP2 observations through quantum gravity or GUP. We estimate the slow-roll parameters, the tensorial and the scalar density fluctuations which are characterized by the scalar field $\\phi$. Taking into account the background (matter and radiation) energy density, $\\phi$ is assumed to interact with the gravity and with itself. We first review the Friedmann-Lemaitre-Robertson-Walker (FLRW) Universe and then suggest modification in the Friedmann equation due to GUP. By using a single potential for a chaotic inflation model, various inflationary parameters are estimated and compared with the PLANCK and BICEP2 observations. While GUP is conjectured to break down the expansion of the early Universe (Hubble parameter and scale factor), two inflation potentials based on certain minimal supersymmetric extension of the standard model result in $r$ and spectral index matching well with the observations. Corresponding to BICEP2 observations, our estimation for $r$ depends on the inflation potential and the scalar field. A power-law inflation potential does not.

  19. Annual Report School of Engineering

    E-Print Network [OSTI]

    Alpay, S. Pamir

    Annual Report 1999-2000 School of Engineering University of Connecticut #12;#12;University of Connecticut School of Engineering Annual Report 1999-2000 Table of Contents School of Engineering Annual Departments Chemical Engineering Annual Report Summary

  20. Nontrivial Dynamics in the Early Stages of Inflation

    E-Print Network [OSTI]

    E. Calzetta; C. El Hasi

    1994-08-05

    Inflationary cosmologies, regarded as dynamical systems, have rather simple asymptotic behavior, insofar as the cosmic baldness principle holds. Nevertheless, in the early stages of an inflationary process, the dynamical behavior may be very complex. In this paper, we show how even a simple inflationary scenario, based on Linde's ``chaotic inflation'' proposal, manifests nontrivial dynamical effects such as the breakup of invariant tori, formation of cantori and Arnol'd's diffusion. The relevance of such effects is highlighted by the fact that even the occurrence or not of inflation in a given Universe is dependent upon them.

  1. Can Higgs Inflation be Saved with High-scale Supersymmetry ?

    E-Print Network [OSTI]

    Sibo Zheng

    2015-04-30

    It is shown whether Higgs inflation can be saved with high-scale supersymmetry critically depends on the magnitude of non-minimal coupling constant $\\xi$. For small $\\xi \\leq 500$, the threshold correction at scale $M_{P}/\\xi$ is constrained in high precision.Its magnitude is in the narrow range of $(-0.03, -0.02)$ and $(-0.05, -0.04)$ for the wino and higgsino/singlino dark matter, respectively. While in the large $\\xi$-region with $\\xi \\geq 10^{4}$, such high-scale supersymmetry is excluded by too large threshold correction as required by Higgs inflation.

  2. Can Higgs Inflation be Saved with High-scale Supersymmetry ?

    E-Print Network [OSTI]

    Zheng, Sibo

    2015-01-01

    It is shown whether Higgs inflation can be saved with high-scale supersymmetry critically depends on the magnitude of non-minimal coupling constant $\\xi$. For small $\\xi \\leq 500$, the threshold correction at scale $M_{P}/\\xi$ is constrained in high precision.Its magnitude is in the narrow range of $(-0.03, -0.02)$ and $(-0.05, -0.04)$ for the wino and higgsino/singlino dark matter, respectively. While in the large $\\xi$-region with $\\xi \\geq 10^{4}$, such high-scale supersymmetry is excluded by too large threshold correction as required by Higgs inflation.

  3. Position space CMB anomalies from multi-stream inflation

    SciTech Connect (OSTI)

    Wang, Yi, E-mail: yi.wang@ipmu.jp [Kavli Institute for the Physics and Mathematics of the Universe (WPI), Todai Institutes for Advanced Study, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8583 (Japan)

    2013-10-01

    Temporary domain walls are produced during the bifurcation era of multi-stream inflation. The observational effects from such a domain wall to spectator field perturbations are calculated, and we expect the inflationary perturbations share similarities with the case of spectator field. A domain wall induces a preferred direction in the sky, affecting the angular distribution of perturbations. A correlated suppression of multipoles together with an alignment of multipole moments on the preferred direction are generated. Other observational aspects of multi-stream inflation, including hemispherical asymmetry and cold spot are also briefly reviewed.

  4. Can Higgs Inflation be Saved with High-scale Supersymmetry ?

    E-Print Network [OSTI]

    Sibo Zheng

    2015-10-07

    It is shown whether Higgs inflation can be saved with high-scale supersymmetry critically depends on the magnitude of non-minimal coupling constant $\\xi$. For small $\\xi \\leq 500$, the threshold correction at scale $M_{P}/\\xi$ is constrained in high precision.Its magnitude is in the narrow range of $(-0.03, -0.02)$ and $(-0.05, -0.04)$ for the wino and higgsino/singlino dark matter, respectively. While in the large $\\xi$-region with $\\xi \\geq 10^{4}$, such high-scale supersymmetry is excluded by too large threshold correction as required by Higgs inflation.

  5. 2011 ANNUAL SITE ENVIRONMENTAL REPORT

    SciTech Connect (OSTI)

    Meyer, A.; Eddy, T.; Jannik, T.; Terry, B.; Cauthen, K.; Coward, L.; Dunaway-Ackerman, J.; Wilson, M.; Hutchison, J.; O'Quinn, S.

    2012-10-01

    The Savannah River Site Environmental Report for 2011 (SRNS-STI-2012-00200) is prepared for the U.S. Department of Energy (DOE) according to requirements of DOE Order 231.1 B, “Environment, Safety and Health Reporting." The annual SRS Environmental Report has been produced for more than 50 years. Several hundred copies are and interested individuals. The report’s purpose is to: present summary environmental data that characterize site environmental management performance; describe compliance status with respect to environmental standards and requirements; highlight significant programs and efforts.

  6. Annual Energy Review 1999

    SciTech Connect (OSTI)

    Seiferlein, Katherine E.

    2000-07-01

    A generation ago the Ford Foundation convened a group of experts to explore and assess the Nation’s energy future, and published their conclusions in A Time To Choose: America’s Energy Future (Cambridge, MA: Ballinger, 1974). The Energy Policy Project developed scenarios of U.S. potential energy use in 1985 and 2000. Now, with 1985 well behind us and 2000 nearly on the record books, it may be of interest to take a look back to see what actually happened and consider what it means for our future. The study group sketched three primary scenarios with differing assumptions about the growth of energy use. The Historical Growth scenario assumed that U.S. energy consumption would continue to expand by 3.4 percent per year, the average rate from 1950 to 1970. This scenario assumed no intentional efforts to change the pattern of consumption, only efforts to encourage development of our energy supply. The Technical Fix scenario anticipated a “conscious national effort to use energy more efficiently through engineering know-how." The Zero Energy Growth scenario, while not clamping down on the economy or calling for austerity, incorporated the Technical Fix efficiencies plus additional efficiencies. This third path anticipated that economic growth would depend less on energy-intensive industries and more on those that require less energy, i.e., the service sector. In 2000, total energy consumption was projected to be 187 quadrillion British thermal units (Btu) in the Historical Growth case, 124 quadrillion Btu in the Technical Fix case, and 100 quadrillion Btu in the Zero Energy Growth case. The Annual Energy Review 1999 reports a preliminary total consumption for 1999 of 97 quadrillion Btu (see Table 1.1), and the Energy Information Administration’s Short-Term Energy Outlook (April 2000) forecasts total energy consumption of 98 quadrillion Btu in 2000. What energy consumption path did the United States actually travel to get from 1974, when the scenarios were drawn, to the end of the century? What happened to the relationship between growth and energy consumption? How did the fuel mix change over this period? What are the effects of energy usage on our environment? What level of consumption will the United States—and the world—record in the Annual Energy Review 2025? We present this edition of the Annual Energy Review to help investigate these important questions and to stimulate and inform our thinking about what the future holds.

  7. G-Bounce Inflation: Towards Nonsingular Inflation Cosmology with Galileon Field

    E-Print Network [OSTI]

    Taotao Qiu; Yu-Tong Wang

    2015-04-29

    We study a nonsingular bounce inflation model, which can drive the early universe from a contracting phase, bounce into an ordinary inflationary phase, followed by the reheating process. Besides the bounce that avoided the Big-Bang singularity which appears in the standard cosmological scenario, we make use of the Horndesky theory and design the kinetic and potential forms of the lagrangian, so that neither of the two big problems in bouncing cosmology, namely the ghost and the anisotropy problems, will appear. The cosmological perturbations can be generated either in the contracting phase or in the inflationary phase, where in the latter the power spectrum will be scale-invariant and fit the observational data, while in the former the perturbations will have nontrivial features that will be tested by the large scale structure experiments. We also fit our model to the CMB TT power spectrum.

  8. Annual Report 2001 Annual Report 2001

    E-Print Network [OSTI]

    Habib, Ayman

    The Arctic Institute of North America Annual Report 2001 The Arctic Institute of North America Annual Report 2001 #12;2000 Board of Directors · James Raffan,Seeley's Bay,Ontario (Chair until September 2001) · Murray B. Todd, Calgary,Alberta (Chair as of September 2001) · Luc Bouthillier,Québec City

  9. Library Annual Report Library Annual Report

    E-Print Network [OSTI]

    Tobar, Michael

    Library Annual Report 2007 Library Annual Report 2007 #12;www.library.uwa.edu.au Our mission: By delivering excellent information resources and services the Library is integral to the University's mission of advancing, transmitting and sustaining knowledge. Our vision: The Library will continue to be at the heart

  10. Cosmology as Science: From Inflation to the Future

    ScienceCinema (OSTI)

    Krass, Lawrence [Case Western Reserve

    2010-01-08

    Recent developments in cosmology bring to the forefront fundamental questions about our ability to falsify various fundamental assumptions about the universe.  I will discuss three issues that reflect different aspects of these questions:  (1) "Proving" Inflation (2) Anthropic "Explanations" (3) Cosmology of the far future.

  11. Extending Higgs Inflation with TeV Scale New Physics

    E-Print Network [OSTI]

    Hong-Jian He; Zhong-Zhi Xianyu

    2014-10-09

    Higgs inflation is among the most economical and predictive inflation models, although the original Higgs inflation requires tuning the Higgs or top mass away from its current experimental value by more than $2\\sigma$ deviations, and generally gives a negligible tensor-to-scalar ratio $r \\sim 10^{-3}$ (if away from the vicinity of critical point). In this work, we construct a minimal extension of Higgs inflation, by adding only two new weak-singlet particles at TeV scale, a vector-quark $T$ and a real scalar $S$. The presence of singlets $(T, S)$ significantly impact the renormalization group running of the Higgs boson self-coupling. With this, our model provides a wider range of the tensor-to-scalar ratio $r = O(0.1 - 10^{-3})$, consistent with the favored $r$ values by either BICEP2 or Planck data, while keeping the successful prediction of the spectral index $ n_s \\simeq 0.96 $. It further allows the Higgs and top masses to fully fit the collider measurements. We also discuss implications for searching the predicted TeV-scale vector-quark $T$ and scalar $S$ at the LHC and future high energy pp colliders.

  12. Extending Higgs inflation with TeV scale new physics

    SciTech Connect (OSTI)

    He, Hong-Jian; Xianyu, Zhong-Zhi E-mail: xianyuzhongzhi@gmail.com

    2014-10-01

    Higgs inflation is among the most economical and predictive inflation models, although the original Higgs inflation requires tuning the Higgs or top mass away from its current experimental value by more than 2? deviations, and generally gives a negligible tensor-to-scalar ratio r ? 10{sup -3} (if away from the vicinity of critical point). In this work, we construct a minimal extension of Higgs inflation, by adding only two new weak-singlet particles at TeV scale, a vector-quark T and a real scalar S. The presence of singlets (T, S) significantly impact the renormalization group running of the Higgs boson self-coupling. With this, our model provides a wider range of the tensor-to-scalar ratio r=O(0.1)-O(10{sup -3}), consistent with the favored r values by either BICEP2 or Planck data, while keeping the successful prediction of the spectral index n{sub s} ? 0.96. It allows the Higgs and top masses to fully fit the collider measurements. We also discuss implications for searching the predicted TeV-scale vector-quark T and scalar S at the LHC and future high energy pp colliders.

  13. Gauge - invariant fluctuations of the metric in stochastic inflation

    E-Print Network [OSTI]

    Mauricio Bellini

    2000-01-07

    I derive the stochastic equation for the perturbations of the metric for a gauge - invariant energy - momemtum - tensor (EMT) in stochastic inflation. A quantization for the field that describes the gauge - invariant perturbations for the metric is developed. In a power - law expansion for the universe the amplitude for these perturbations on a background metric could be very important in the infrared sector.

  14. Primordial fluctuations of the metric in the warm inflation scenario

    E-Print Network [OSTI]

    Mauricio Bellini

    2000-05-16

    I consider a semiclassical expansion of the scalar field in the warm inflation scenario. I study the evolution for the fluctuations of the metric around the Friedmann-Robertson-Walker one. The formalism predicts that, in the power-law expansion universe, the fluctuations of the metric decreases with time.

  15. The Effective Planck Mass and the Scale of Inflation

    E-Print Network [OSTI]

    Ignatios Antoniadis; Subodh P. Patil

    2015-04-23

    Observable quantities in cosmology are dimensionless, and therefore independent of the units in which they are measured. This is true of all physical quantities associated with the primordial perturbations that source cosmic microwave background anisotropies such as their amplitude and spectral properties. However, if one were to try and infer an absolute energy scale for inflation-- a priori, one of the more immediate corollaries of detecting primordial tensor modes-- one necessarily makes reference to a particular choice of units, the natural choice for which is Planck units. In this note, we discuss various aspects of how inferring the energy scale of inflation is complicated by the fact that the effective strength of gravity as seen by inflationary quanta necessarily differs from that seen by gravitational experiments at presently accessible scales. The uncertainty in the former relative to the latter has to do with the unknown spectrum of universally coupled particles between laboratory scales and the putative scale of inflation. These intermediate particles could be in hidden as well as visible sectors or could also be associated with Kaluza-Klein resonances associated with a compactification scale below the scale of inflation. We discuss various implications for cosmological observables.

  16. Running of scalar spectral index in multi-field inflation

    E-Print Network [OSTI]

    Jinn-Ouk Gong

    2015-05-20

    We compute the running of the scalar spectral index in general multi-field slow-roll inflation. By incorporating explicit momentum dependence at the moment of horizon crossing, we can find the running straightforwardly. At the same time, we can distinguish the contributions from the quasi de Sitter background and the super-horizon evolution of the field fluctuations.

  17. Oscillations in the CMB from Axion Monodromy Inflation

    SciTech Connect (OSTI)

    Flauger, Raphael; McAllister, Liam; Pajer, Enrico; Westphal, Alexander; Xu, Gang; /Cornell U., Phys. Dept.

    2011-12-01

    We study the CMB observables in axion monodromy inflation. These well-motivated scenarios for inflation in string theory have monomial potentials over super-Planckian field ranges, with superimposed sinusoidal modulations from instanton effects. Such periodic modulations of the potential can drive resonant enhancements of the correlation functions of cosmological perturbations, with characteristic modulations of the amplitude as a function of wavenumber. We give an analytical result for the scalar power spectrum in this class of models, and we determine the limits that present data places on the amplitude and frequency of modulations. Then, incorporating an improved understanding of the realization of axion monodromy inflation in string theory, we perform a careful study of microphysical constraints in this scenario. We find that detectable modulations of the scalar power spectrum are commonplace in well-controlled examples, while resonant contributions to the bispectrum are undetectable in some classes of examples and detectable in others. We conclude that resonant contributions to the spectrum and bispectrum are a characteristic signature of axion monodromy inflation that, in favorable cases, could be detected in near-future experiments.

  18. Inhomogeneous Cosmology, Inflation and Late-Time Accelerating Universe

    E-Print Network [OSTI]

    J. W. Moffat

    2007-05-30

    An exact inhomogeneous solution of Einstein's field equations is shown to be able to inflate in a non-uniform way in the early universe and explain anomalies in the WMAP power spectrum data. It is also possible for the model to explain the accelerated expansion of the universe by late-time inhomogeneous structure.

  19. Graviton Dominated Eras of Universe Evolution, Inflation and Dark Energy

    E-Print Network [OSTI]

    Leonid Marochnik

    2015-10-01

    This review represents an attempt to gather together new and published results of instanton theory of gravitons with an emphasis on their cosmological applications (inflation and dark energy). The empty space (with no matter fields) is not really empty because of natural quantum metric fluctuations, i.e. gravitons. It is shown that in the homogeneous isotropic empty Universe gravitons can be tunneled into Euclidean space of imaginary time through a topologically impenetrable barrier. They are damped there, giving their energy to the formation of the self-consistent de Sitter state, which is invariant with respect to the Wick rotation. The latter suggests that it is formed in real time too, and its appearance there can be considered as tunneling from nothing. The present Universe is already ~70% empty so that the effects associated with the emptiness of space must already be very noticeable, and they are (dark energy). The inflation most likely had to start from the vacuum state also. De Sitter accelerated expansion of the empty Universe naturally explains the origin of dark energy and inflation because at the start (inflation) and by the end (dark energy) of its evolution the Universe is empty. In distinction to scalar field theories, the CMB anisotropy of the order of 10^-5 is produced by fluctuations in the number of gravitons. The existence of a threshold and unique coincidence of topologically impenetrable barriers for tunneling takes place for the matter dominated epoch and De Sitter State only. These facts provide a solution to the coincidence problem. The theoretical prediction that the equation-of-state parameter should be w>-1 for inflation and wenergy is consistent with observational data. The mandatory use of imaginary time (and then back to real time) suggests that time could be a complex variable, and this fact has a deep but still not understood meaning

  20. Annual Energy Review 2002

    SciTech Connect (OSTI)

    Seiferlein, Katherine E.

    2003-10-01

    The Annual Energy Review (AER) presents the Energy Information Administration’s historical energy statistics. For many series, statistics are given for every year from 1949 through 2002. The statistics, expressed in either physical units or British thermal units, cover all major energy activities, including consumption, production, trade, stocks, and prices, for all major energy commodities, including fossil fuels, electricity, and renewable energy sources. Publication of this report is required under Public Law 95–91 (Department of Energy Organization Act), Section 205(c), and is in keeping with responsibilities given to the Energy Information Administration (EIA) under Section 205(a)(2), which states: “The Administrator shall be responsible for carrying out a central, comprehensive, and unified energy data and information program which will collect, evaluate, assemble, analyze, and disseminate data and information....” The AER is intended for use by Members of Congress, Federal and State agencies, energy analysts, and the general public. EIA welcomes suggestions from readers regarding data series in the AER and in other EIA publications. Related Publication: Readers of the AER may also be interested in EIA’s Monthly Energy Review, which presents monthly updates of many of the data in the AER. Contact our National Energy Information Center for more information.

  1. Avoiding the blue spectrum and the fine-tuning of initial conditions in hybrid inflation

    E-Print Network [OSTI]

    Sebastien Clesse; Jonathan Rocher

    2009-04-20

    Hybrid inflation faces two well-known problems: the blue spectrum of the non-supersymmetric version of the model and the fine-tuning of the initial conditions of the fields leading to sufficient inflation to account for the standard cosmological problems. They are investigated by studying the exact two-fields dynamics instead of assuming slow-roll. When the field values are restricted to be less than the reduced Planck mass, a non-negligible part of the initial condition space (around 15% depending on potential parameters) leads to successful inflation. Most of it is located outside the usual inflationary valley and organized in continuous patterns instead of being isolated as previously found. Their existence is explained and their properties are studied. This shows that no excessive fine-tuning is required for successful hybrid inflation. Moreover, by extending the initial condition space to planckian-like or super-planckian values, inflation becomes generically sufficiently long and can produce a red-tilted scalar power spectrum due to slow-roll violations. The robustness of these properties is confirmed by conducting our analysis on three other models of hybrid-type inflation in various framework: "smooth" and "shifted" inflation in SUSY and SUGRA, and "radion assisted" gauge inflation. A high percentage of successful inflation for smooth hybrid inflation (up to 80%) is observed.

  2. Time series analysis is a part of mathematical statistics representing a useful tool for data elaboration in several areas. It has a lot of interesting applications.

    E-Print Network [OSTI]

    Cerveny, Vlastislav

    in business and econo- mics, annual birth or mortality rates in demography, accident rates or unemploy- ment of observations. We can record daily closing stock prices, weekly interest rates or monthly price indices

  3. Issue 5: High Interest in Hybrid Cars

    E-Print Network [OSTI]

    Ong, Paul M.; Haselhoff, Kim

    2005-01-01

    2005). “High Interest in Hybrid Cars. ” SCS Fact Sheet, Vol.May 2005 High Interest in Hybrid Cars I NTRODUCTION PublicThe unique features of a hybrid car mean that it is more

  4. Energy Efficiency Interest Rate Reduction Program

    Broader source: Energy.gov [DOE]

    For new and existing home purchases that are rated 6 Star or 5 Star Plus, applicants are eligible for an interest rate reduction for the first $200,000 of the loan amount, with a blended interest...

  5. Other Purdue Web points of Interest

    E-Print Network [OSTI]

    Other Purdue Web points of interest. Purdue University Home Page --- Schedule of Classes · Graduate School · Agronomy · Computer Science --- CS & E ...

  6. Recommendations: 2007 Annual Plan | Department of Energy

    Energy Savers [EERE]

    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 DeliciousMathematicsEnergyInterested PartiesBuildingBudget ||DepartmentReadoutReview of Lessons7 Annual Plan

  7. Recommendations: 2008 Annual Plan | Department of Energy

    Energy Savers [EERE]

    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 DeliciousMathematicsEnergyInterested PartiesBuildingBudget ||DepartmentReadoutReview of Lessons7 Annual Plan8

  8. Recommendations: 2009 Annual Plan | Department of Energy

    Energy Savers [EERE]

    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 DeliciousMathematicsEnergyInterested PartiesBuildingBudget ||DepartmentReadoutReview of Lessons7 Annual Plan89

  9. Recommendations: 2010 Annual Plan | Department of Energy

    Energy Savers [EERE]

    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 DeliciousMathematicsEnergyInterested PartiesBuildingBudget ||DepartmentReadoutReview of Lessons7 Annual Plan890

  10. Recommendations: 2011 Annual Plan | Department of Energy

    Energy Savers [EERE]

    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 DeliciousMathematicsEnergyInterested PartiesBuildingBudget ||DepartmentReadoutReview of Lessons7 Annual Plan8901

  11. Saddle point inflation from $f(R)$ theory

    E-Print Network [OSTI]

    Michal Artymowski; Zygmunt Lalak; Marek Lewicki

    2015-08-20

    We analyse several saddle point inflationary scenarios based on power-law $f(R)$ models. We investigate inflation resulting from $f(R) = R + \\alpha_n M^{2(1-n)}R^n + \\alpha_{n+1}M^{-2n}R^{n+1}$ and $f(R) = \\sum_n^l \\alpha_n M^{2(1-n)} R^n$ as well as $l\\to\\infty$ limit of the latter. In all cases we have found relation between $\\alpha_n$ coefficients and checked consistency with the PLANCK data as well as constraints coming from the stability of the models in question. Each of the models provides solutions which are both stable and consistent with PLANCK data, however only in parts of the parameter space where inflation starts on the plateau of the potential, some distance from the saddle. And thus all the correct solutions bear some resemblance to the Starobinsky model.

  12. Breaking discrete symmetries in the effective field theory of inflation

    E-Print Network [OSTI]

    Dario Cannone; Jinn-Ouk Gong; Gianmassimo Tasinato

    2015-05-29

    We study the phenomenon of discrete symmetry breaking during the inflationary epoch, using a model-independent approach based on the effective field theory of inflation. We work in a context where both time reparameterization symmetry and spatial diffeomorphism invariance can be broken during inflation. We determine the leading derivative operators in the quadratic action for fluctuations that break parity and time-reversal. Within suitable approximations, we study their consequences for the dynamics of linearized fluctuations. Both in the scalar and tensor sectors, we show that such operators can lead to new direction-dependent phases for the modes involved. They do not affect the power spectra, but can have consequences for higher correlation functions. Moreover, a small quadrupole contribution to the sound speed can be generated.

  13. A new parameter in attractor single-field inflation

    E-Print Network [OSTI]

    Jinn-Ouk Gong; Misao Sasaki

    2015-06-16

    We revisit the notion of slow-roll in the context of general single-field inflation. As a generalization of slow-roll dynamics, we consider an inflaton $\\phi$ in an attractor phase where the time derivative of $\\phi$ is determined by a function of $\\phi$, $\\dot\\phi=\\dot\\phi(\\phi)$. In other words, we consider the case when the number of $e$-folds $N$ counted backward in time from the end of inflation is solely a function of $\\phi$, $N=N(\\phi)$. In this case, it is found that we need a new independent parameter to properly describe the dynamics of the inflaton field in general, in addition to the standard parameters conventionally denoted by $\\epsilon$, $\\eta$, $c_s^2$ and $s$. Two illustrative examples are presented to discuss the non-slow-roll dynamics of the inflaton field consistent with observations.

  14. A new parameter in attractor single-field inflation

    E-Print Network [OSTI]

    Gong, Jinn-Ouk

    2015-01-01

    We revisit the notion of slow-roll in the context of general single-field inflation. As a generalization of slow-roll dynamics, we consider an inflaton $\\phi$ in an attractor phase where the time derivative of $\\phi$ is determined by a function of $\\phi$, $\\dot\\phi=\\dot\\phi(\\phi)$. In other words, we consider the case when the number of $e$-folds $N$ counted backward in time from the end of inflation is solely a function of $\\phi$, $N=N(\\phi)$. In this case, it is found that we need a new independent parameter to properly describe the dynamics of the inflaton field in general, in addition to the standard parameters conventionally denoted by $\\epsilon$, $\\eta$, $c_s^2$ and $s$. Two illustrative examples are presented to discuss the non-slow-roll dynamics of the inflaton field consistent with observations.

  15. Studying Inflation with Future Space-Based Gravitational Wave Detectors

    E-Print Network [OSTI]

    Ryusuke Jinno; Takeo Moroi; Tomo Takahashi

    2014-11-28

    Motivated by recent progress in our understanding of the $B$-mode polarization of cosmic microwave background (CMB), which provides important information about the inflationary gravitational waves (IGWs), we study the possibility to acquire information about the early universe using future space-based gravitational wave (GW) detectors. We perform a detailed statistical analysis to estimate how well we can determine the reheating temperature after inflation as well as the amplitude, the tensor spectral index, and the running of the inflationary gravitational waves. We discuss how the accuracies depend on noise parameters of the detector and the minimum frequency available in the analysis. Implication of such a study on the test of inflation models is also discussed.

  16. Studying inflation with future space-based gravitational wave detectors

    SciTech Connect (OSTI)

    Jinno, Ryusuke; Moroi, Takeo; Takahashi, Tomo E-mail: moroi@phys.s.u-tokyo.ac.jp

    2014-12-01

    Motivated by recent progress in our understanding of the B-mode polarization of cosmic microwave background (CMB), which provides important information about the inflationary gravitational waves (IGWs), we study the possibility to acquire information about the early universe using future space-based gravitational wave (GW) detectors. We perform a detailed statistical analysis to estimate how well we can determine the reheating temperature after inflation as well as the amplitude, the tensor spectral index, and the running of the inflationary gravitational waves. We discuss how the accuracies depend on noise parameters of the detector and the minimum frequency available in the analysis. Implication of such a study on the test of inflation models is also discussed.

  17. Backreaction and Stochastic Effects in Single Field Inflation

    E-Print Network [OSTI]

    Laurence Perreault Levasseur; Evan McDonough

    2015-08-31

    The formalism of stochastic inflation is a powerful tool for analyzing the backreaction of cosmological perturbations, and making precise predictions for inflationary observables. We demonstrate this with the simple $m^2\\phi^2$ model of inflation, wherein we obtain an effective field theory for IR modes of the inflaton, which remains coupled to UV modes through a classical noise. We compute slow-roll corrections to the evolution of UV modes (i.e. quantum fluctuations), and track this effect from the UV theory to the IR theory, where it manifests as a correction to the classical noise. We compute the stochastic correction to the spectral index of primordial perturbations, finding a small effect, and discuss models in which this effect can become large. We extend our analysis to tensor modes, and demonstrate that the stochastic approach allows us to recover the standard tensor tilt $n_T$, plus corrections.

  18. Consistency condition for inflation from (broken) conformal symmetry

    SciTech Connect (OSTI)

    Schalm, Koenraad; Aalst, Ted van der [Instituut-Lorentz for Theoretical Physics, Universiteit Leiden, Niels Bohrweg 2, Leiden (Netherlands); Shiu, Gary, E-mail: kschalm@lorentz.leidenuniv.nl, E-mail: shiu@physics.wisc.edu, E-mail: vdaalst@lorentz.leidenuniv.nl [Department of Physics, University of Wisconsin-Madison, Madison, WI 53706 (United States)

    2013-03-01

    We investigate the symmetry constraints on the bispectrum, i.e. the three-point correlation function of primordial density fluctuations, in slow-roll inflation. It follows from the defining property of slow-roll inflation that primordial correlation functions inherit most of their structure from weakly broken de Sitter symmetries. Using holographic techniques borrowed from the AdS/CFT correspondence, the symmetry constraints on the bispectrum can be mapped to a set of stress-tensor Ward identities in a weakly broken 2+1-dimensional Euclidean CFT. We construct the consistency condition from these Ward identities using conformal perturbation theory. This requires a second order Ward identity and the use of the evolution equation. Our result also illustrates a subtle difference between conformal perturbation theory and the slow-roll expansion.

  19. On the fate of coupled flat directions during inflation

    SciTech Connect (OSTI)

    Sánchez, Juan C. Bueno [Departamento de Física Atómica, Molecular y Nuclear, Universidad Complutense de Madrid, 28040 Madrid (Spain); Enqvist, Kari, E-mail: jcbueno@fis.ucm.es, E-mail: kari.enqvist@helsinki.fi [University of Helsinki and Helsinki Institute of Physics, FIN-00014, University of Helsinki (Finland)

    2013-03-01

    We investigate the stochastic dynamics of the long wavelength modes of a generic light scalar field that during inflation is coupled to another scalar field. The coupling plays an important role for the fluctuation of the field amplitude and may block its initial growth. We find that such a blocking is avoided, albeit only temporarily, if the light scalar has an initial non-vanishing expectation value (?) larger than a certain critical value, for which we provide an estimate. We also show that the field fluctuations will eventually reach an equilibrium amplitude provided inflation is sufficiently long-lasting. We present a novel, general expression for the variance (?{sup 2}) that takes into account the coupling of the massless field and describes the growth during the epoch of quasi-free fluctuations as well as the late-time approach to the equilibrium.

  20. Historical Natural Gas Annual

    U.S. Energy Information Administration (EIA) Indexed Site

    Annual . 1996 Published October 1997 1997 Published October 1998 1998 Published October 1999 1999 Published October 2000 2000 Published December 2001...

  1. OPSI Annual Meeting

    Broader source: Energy.gov [DOE]

    The Organization of PJM States, Inc. (OPSI) is hosting its annual meeting in Chicago, IL, on October 13-14, 2014.

  2. EMSL 2009 Annual Report

    SciTech Connect (OSTI)

    Showalter, Mary Ann; Kathmann, Loel E.; Manke, Kristin L.; Wiley, Julie G.; Reed, Jennifer R.

    2010-02-26

    The EMSL 2009 Annual Report describes the science conducted at EMSL during 2009 as well as outreach activities and awards and honors received by users and staff.

  3. SPEER Third Annual Summit

    Broader source: Energy.gov [DOE]

    The South-Central Partnership for Energy Efficiency as a Resource (SPEER) is hosting their 3rd Annual Summit in Dallas, Texas.

  4. SFU LIBRARY ANNUAL REPORT

    E-Print Network [OSTI]

    SFU LIBRARY ANNUAL REPORT 2006/07 #12;22 TABLE OF CONTENTS Message from the University Librarian................................................... ....................................... 7 WAC Bennett Library.................................................................. ....................................... 8 Samuel and Frances Belzberg Library

  5. Required Annual Notices

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Annual Notices The Women's Health and Cancer Rights Act of 1998 (WHCRA) The medical programs sponsored by LANS will not restrict benefits if you or your dependent receives...

  6. Required Annual Notices

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Required Annual Notices The Women's Health and Cancer Rights Act of 1998 (WHCRA) The medical programs sponsored by LANS will not restrict benefits if you or your dependent...

  7. Warm inflation and scalar perturbations of the metric

    E-Print Network [OSTI]

    Mauricio Bellini

    2001-01-16

    A second-order expansion for the quantum fluctuations of the matter field was considered in the framework of the warm inflation scenario. The friction and Hubble parameters were expended by means of a semiclassical approach. The fluctuations of the Hubble parameter generates fluctuations of the metric. These metric fluctuations produce an effective term of curvature. The power spectrum for the metric fluctuations can be calculated on the infrared sector.

  8. Warm inflation with back - reaction: a stochastic approach

    E-Print Network [OSTI]

    Mauricio Bellini

    1999-10-25

    I study a stochastic approach for warm inflation considering back - reaction of the metric with the fluctuations of matter field. This formalism takes into account the local inhomogeneities fo the spacetime in a globally flat Friedmann - Robertson - Walker metric. The stochastic equations for the fluctuations of the matter field and the metric are obtained. Finally, the dynamics for the amplitude of these fluctuations in a power - law expansion for the universe are examined.

  9. Entropy evolution in warm inflation from a 5D vacuum

    E-Print Network [OSTI]

    Jesus Martin Romero; Mauricio Bellini

    2009-12-15

    Using some ideas of Modern Kaluza-Klein theory, we examine the evolution of entropy on a 4D Friedmann-Robertson-Walker (FRW) brane from a 5D vacuum state, which is defined on a 5D background Riemann-flat metric. We found that entropy production is sufficiently important during inflation: $S > 10^{90}$, for all the initial values of temperature $T_0 < T_{GU}$.

  10. Primordial perturbations in tachyonic power-law inflation

    E-Print Network [OSTI]

    de Souza, Rudinei C

    2013-01-01

    In this work we determine the power spectrum of the gravitational potential of the primordial fluctuations for an inflationary model whose \\emph{inflaton} is a non-canonical scalar field of the tachyon-type. The respective background field equations for an inverse-square potential produce a power-law inflation, and it is explicitly shown that for such a potential the power spectrum tends to be scale-independent for highly accelerated regimes in the inflationary expansion.

  11. Annual Performance Report FY 2004 Annual Performance Plan FY...

    Broader source: Energy.gov (indexed) [DOE]

    I am pleased to present the Office of Inspector General's (OIG's) combined Fiscal Year 2004 Annual Performance Report and Fiscal Year 2005 Annual Performance Plan. In Fiscal Year...

  12. Just enough inflation: power spectrum modifications at large scales

    SciTech Connect (OSTI)

    Cicoli, Michele [Dipartimento di Fisica ed Astronomia, Università di Bologna, via Irnerio 46, 40126 Bologna (Italy); Downes, Sean [Leung Center for Cosmology and Particle Astrophysics, National Taiwan University, No. 1, Section 4, Roosevelt Road, Taipei 10617, Taiwan (China); Dutta, Bhaskar [Mitchell Institute for Fundamental Physics and Astronomy, Department of Physics and Astronomy, Texas A and M University, College Station, TX 77843-4242 (United States); Pedro, Francisco G.; Westphal, Alexander, E-mail: mcicoli@ictp.it, E-mail: ssdownes@phys.ntu.edu.tw, E-mail: dutta@physics.tamu.edu, E-mail: francisco.pedro@desy.de, E-mail: alexander.westphal@desy.de [Deutsches Elektronen-Synchrotron DESY, Theory Group, D-22603 Hamburg (Germany)

    2014-12-01

    We show that models of 'just enough' inflation, where the slow-roll evolution lasted only 50- 60 e-foldings, feature modifications of the CMB power spectrum at large angular scales. We perform a systematic analytic analysis in the limit of a sudden transition between any possible non-slow-roll background evolution and the final stage of slow-roll inflation. We find a high degree of universality since most common backgrounds like fast-roll evolution, matter or radiation-dominance give rise to a power loss at large angular scales and a peak together with an oscillatory behaviour at scales around the value of the Hubble parameter at the beginning of slow-roll inflation. Depending on the value of the equation of state parameter, different pre-inflationary epochs lead instead to an enhancement of power at low ?, and so seem disfavoured by recent observational hints for a lack of CMB power at ??< 40. We also comment on the importance of initial conditions and the possibility to have multiple pre-inflationary stages.

  13. Signs of Analyticity in Single-Field Inflation

    E-Print Network [OSTI]

    Daniel Baumann; Daniel Green; Hayden Lee; Rafael A. Porto

    2015-02-25

    The analyticity of response functions and scattering amplitudes implies powerful relations between low-energy observables and the underlying short-distance dynamics. These 'IR/UV' relations are rooted in basic physical principles, such as causality and unitarity. In this paper, we seek similar connections in inflation, relating cosmological observations to the physics responsible for the accelerated expansion. We assume that the inflationary theory is Lorentz invariant at short distances, but allow for non-relativistic interactions and a non-trivial speed of propagation at low energies. Focusing on forward scattering, we derive a 'sum rule' which equates a combination of low-energy parameters to an integral which is sensitive to the high-energy behavior of the theory. While for relativistic amplitudes unitarity is sufficient to prove positivity of the sum rule, this is not guaranteed in the non-relativistic case. We discuss the conditions under which positivity still applies, and show that they are satisfied by all known UV completions of single-field inflation. In that case, we obtain a consistency condition for primordial non-Gaussianity, which constrains the size and the sign of the equilateral four-point function in terms of the amplitude of the three-point function. The resulting bound rules out about half of the parameter space that is still allowed by current observations. Finding a violation of our consistency condition would point towards less conventional theories of inflation, or violations of basic physical principles.

  14. Signs of Analyticity in Single-Field Inflation

    E-Print Network [OSTI]

    Daniel Baumann; Daniel Green; Hayden Lee; Rafael A. Porto

    2015-12-09

    The analyticity of response functions and scattering amplitudes implies powerful relations between low-energy observables and the underlying short-distance dynamics. These 'IR/UV' relations are rooted in basic physical principles, such as causality and unitarity. In this paper, we seek similar connections in inflation, relating cosmological observations to the physics responsible for the accelerated expansion. We assume that the inflationary theory is Lorentz invariant at short distances, but allow for non-relativistic interactions and a non-trivial speed of propagation at low energies. Focusing on forward scattering, we derive a 'sum rule' which equates a combination of low-energy parameters to an integral which is sensitive to the high-energy behavior of the theory. While for relativistic amplitudes unitarity is sufficient to prove positivity of the sum rule, this is not guaranteed in the non-relativistic case. We discuss the conditions under which positivity still applies, and show that they are satisfied by all known UV completions of single-field inflation. In that case, we obtain a consistency condition for primordial non-Gaussianity, which constrains the size and the sign of the equilateral four-point function in terms of the amplitude of the three-point function. The resulting bound rules out about half of the parameter space that is still allowed by current observations. Finding a violation of our consistency condition would point towards less conventional theories of inflation, or violations of basic physical principles.

  15. On squeezed limits in single-field inflation. Part I

    SciTech Connect (OSTI)

    Flauger, Raphael; Green, Daniel; Porto, Rafael A. E-mail: dgreen@stanford.edu

    2013-08-01

    The n-point correlation functions in single-field inflation obey a set of consistency conditions in the exact squeezed limit which are not present in multi-field models, and thus are powerful tools to distinguish between the two. However, these consistency conditions may be violated for a finite range of scales in single-field models, for example by departures from the Bunch-Davies state. These excited states may be the consequence of interactions during inflation, or may be a remnant of the era that preceded inflation. In this paper we analyze the bispectrum, and show that in the regime of theoretical control the resulting signal in the squeezed limit remains undetectably small in all known models which continuously excite the state. We also show that the signal remains undetectably small if the initial state is related to the Bunch-Davies state by a Bogoliubov transformation and the energy density in the state is small enough so that the usual slow-roll conditions are obeyed. Bogoliubov states that lead to violations of the slow-roll conditions, as well as more general excited states, require more careful treatment and will be discussed in a separate publication.

  16. Gravitoelectromagnetic inflation from a 5D vacuum state: a new formalism

    E-Print Network [OSTI]

    Alfredo Raya; Jose Edgar Madriz Aguilar; Mauricio Bellini

    2007-05-22

    We propose a novel formalism for inflation from a 5D vacuum state which could explain both, seeds of matter and magnetic fields in the early universe.

  17. Forest Research Annual Report

    E-Print Network [OSTI]

    Forest Research Annual Report and Accounts 2005­2006 The research agency of the Forestry Commission #12;Forest Research Annual Report and Accounts I 2005­2006 Together with the Comptroller and Auditor to be printed 24 July 2006 HC 1407 The research agency of the Forestry Commission Edinburgh: The Stationery

  18. Annual Energy Review, 2008

    SciTech Connect (OSTI)

    2009-06-01

    The Annual Energy Review (AER) is the Energy Information Administration's (EIA) primary report of annual historical energy statistics. For many series, data begin with the year 1949. Included are statistics on total energy production, consumption, trade, and energy prices; overviews of petroleum, natural gas, coal, electricity, nuclear energy, renewable energy, and international energy; financial and environment indicators; and data unit conversions.

  19. High Temperature Materials Laboratory User Program: 19th Annual Report, October 1, 2005 - September 30, 2006

    SciTech Connect (OSTI)

    Pasto, Arvid

    2007-08-01

    Annual Report contains overview of the High Temperature Materials Laboratory User Program and includes selected highlights of user activities for FY2006. Report is submitted to individuals within sponsoring DOE agency and to other interested individuals.

  20. DOE Affirms National Interest Electric Transmission Corridor...

    Broader source: Energy.gov (indexed) [DOE]

    requests for rehearing of the Mid-Atlantic and the Southwest Area National Interest Electric Transmission Corridors (National Corridors) designated by DOE in October 2007 as...

  1. Aligning Utility Interests with Energy Efficiency Objectives...

    Open Energy Info (EERE)

    Aligning Utility Interests with Energy Efficiency Objectives: A Review of Recent Efforts at Decoupling and Performance Incentives Jump to: navigation, search Tool Summary LAUNCH...

  2. Scaling behavior in crackle sound during lung inflation Adriano M. Alencar,1,2

    E-Print Network [OSTI]

    Stanley, H. Eugene

    Scaling behavior in crackle sound during lung inflation Adriano M. Alencar,1,2 Zolta´n Hantos,3 received 14 July 1999 During slow inflation of lung lobes, we measure a sequence of short explosive are a consequence of structural heterogeneity in the lung, ii the intermittent behavior is due to the avalanchelike

  3. Mathematical Modeling of the First Inflation of Degassed Lungs BELA SUKI,* JOSE S. ANDRADE, JR.,

    E-Print Network [OSTI]

    Stanley, H. Eugene

    Mathematical Modeling of the First Inflation of Degassed Lungs BE´LA SUKI,* JOSE´ S. ANDRADE, JR--The pressure­volume (P­V) relationship of de- gassed lungs during the first inflation is different from and degassed rabbit lungs. By fitting these data, we found that n 17 5, Plow 23 4 cmH2O

  4. Impedance measurements of ex vivo rat lung at different volumes of inflation

    E-Print Network [OSTI]

    Illinois at Urbana-Champaign, University of

    Impedance measurements of ex vivo rat lung at different volumes of inflation Michael L. Oelze that the occurrence of ultrasonically induced lung hemorrhage in rats was directly correlated to the level of lung inflation. In that study, it was hypothesized that the lung could be modeled as two components consisting

  5. Spectral regularisation: induced gravity and the onset of inflation

    SciTech Connect (OSTI)

    Kurkov, Max A.; Sakellariadou, Mairi E-mail: mairi.sakellariadou@kcl.ac.uk

    2014-01-01

    Using spectral regularisation, we compute the Weyl anomaly and express the anomaly generating functional of the quantum effective action through a collective scalar degree of freedom of all quantum vacuum fluctuations. Such a formulation allows us to describe induced gravity on an equal footing with the anomaly-induced effective action, in a self-consistent way. We then show that requiring stability of the cosmological constant under loop quantum corrections, Sakharov's induced gravity and Starobinsky's anomaly-induced inflation are either both present or both absent, depending on the particle content of the theory.

  6. Chaotic Hybrid Inflation with a Gauged B - L

    E-Print Network [OSTI]

    Linda M. Carpenter; Stuart Raby

    2014-09-03

    In this paper we present a novel formulation of chaotic hybrid inflation in supergravity. The model includes a waterfall field which spontaneously breaks a gauged $U_1(B-L)$ at a GUT scale. This allows for the possibility of future model building which includes the standard formulation of baryogenesis via leptogenesis with the waterfall field decaying into right-handed neutrinos. We have not considered the following issues in this short paper, i.e. supersymmetry breaking, dark matter or the gravitino or moduli problems. Our focus is on showing the compatibility of the present model with Planck, WMAP and Bicep2 data.

  7. Anisotropic cosmology and inflation from tilted Bianchi IX model

    E-Print Network [OSTI]

    Sundell, Peter

    2015-01-01

    The dynamics of the tilted Bianchi IX cosmological models are explored allowing energy flux in the source fluid. The equation of state and the tilt angle of the fluid are the two free parameters and the shear, the vorticity and the curvature of the spacetime span a three-dimensional phase space that contains seven fixed points. One of them is an attractor that inflates the universe anisotropically, thus providing a counter example to the cosmic no-hair conjecture. Also, an example of a realistic though fine-tuned cosmology is presented wherein the rotation can grow significant towards the present epoch but the shear stays within the observational bounds.

  8. Anisotropic cosmology and inflation from tilted Bianchi IX model

    E-Print Network [OSTI]

    Peter Sundell; Tomi Koivisto

    2015-06-15

    The dynamics of the tilted Bianchi IX cosmological models are explored allowing energy flux in the source fluid. The equation of state and the tilt angle of the fluid are the two free parameters and the shear, the vorticity and the curvature of the spacetime span a three-dimensional phase space that contains seven fixed points. One of them is an attractor that inflates the universe anisotropically, thus providing a counter example to the cosmic no-hair conjecture. Also, an example of a realistic though fine-tuned cosmology is presented wherein the rotation can grow significant towards the present epoch but the shear stays within the observational bounds.

  9. Towards general patterns of features in multi-field inflation

    E-Print Network [OSTI]

    Xian Gao; Jinn-Ouk Gong

    2015-06-29

    We investigate the consequences of general curved trajectories in multi-field inflation. After setting up a completely general formalism using the mass basis, which naturally accommodates the notion of light and heavy modes, we study in detail the simple case of two successive turns in two-field system. We find the power spectrum of the curvature perturbation receives corrections that exhibit oscillatory features sinusoidal in the logarithm of the comoving wavenumber without slow-roll suppression. We show that this is because of the resonance of the heavy modes inside and outside the mass horizon.

  10. Anisotropic inflation with non-abelian gauge kinetic function

    SciTech Connect (OSTI)

    Murata, Keiju [DAMTP, University of Cambridge, Centre for Mathematical Sciences, Wilberforce Road, Cambridge CB3 0WA (United Kingdom); Soda, Jiro, E-mail: K.Murata@damtp.cam.ac.uk, E-mail: jiro@tap.scphys.kyoto-u.ac.jp [Department of Physics, Kyoto University, Kyoto, 606-8502 (Japan)

    2011-06-01

    We study an anisotropic inflation model with a gauge kinetic function for a non-abelian gauge field. We find that, in contrast to abelian models, the anisotropy can be either a prolate or an oblate type, which could lead to a different prediction from abelian models for the statistical anisotropy in the power spectrum of cosmological fluctuations. During a reheating phase, we find chaotic behaviour of the non-abelian gauge field which is caused by the nonlinear self-coupling of the gauge field. We compute a Lyapunov exponent of the chaos which turns out to be uncorrelated with the anisotropy.

  11. Envelope inflation in Wolf-Rayet stars and extended supernova shock breakout signals

    E-Print Network [OSTI]

    Sanyal, Debashis; Langer, Norbert

    2015-01-01

    Massive, luminous stars reaching the Eddington limit in their interiors develop very dilute, extended envelopes. This effect is called envelope inflation. If the progenitors of Type Ib/c supernovae, which are believed to be Wolf-Rayet (WR) stars, have inflated envelopes then the shock breakout signals diffuse in them and can extend their rise times significantly. We show that our inflated, hydrogen-free, WR stellar models with a radius of ~Rsun can have shock breakout signals longer than ~60 s. The puzzlingly long shock breakout signal observed in the Type Ib SN 2008D can be explained by an inflated progenitor envelope, and more such events might argue in favour of existence of inflated envelopes in general.

  12. 2010 Annual Report

    SciTech Connect (OSTI)

    none,

    2010-01-01

    This annual report includes: an overview of Western; approaches for future hydropower and transmission service; major achievements in FY 2010; FY 2010 customer Integrated Resource Planning, or IRP, survey; and financial data.

  13. 2009 Annual Report

    SciTech Connect (OSTI)

    none,

    2009-01-01

    This annual report includes: a brief overview of Western; some of our major achievements in FY 2009; FY 2009 customer Integrated Resource Planning, or IRP, survey; and financial data.

  14. NARUC Annual Meeting

    Broader source: Energy.gov [DOE]

    The National Association of Regulatory Utility Commissioneers (NARUC) is hosting its annual meeting in San Fransisco, CA, from Nov. 16-19, 2014. Registration and housing begins Aug. 27. 

  15. JAHRESBERICHT ANNUAL REPORT07

    E-Print Network [OSTI]

    Falge, Eva

    JAHRESBERICHT ANNUAL REPORT07 #12;Forschungsausblick Klaus J. Hopt über Corporate Governance Ferdi Schüth über zukünftige Energiesysteme Axel Ullrich über innovative Krebsmedikamente Research Outlook Klaus J. Hopt about Corporate Governance Ferdi Schüth about Future Energy Systems Axel Ullrich about New

  16. NERI 2004 Annual Report

    SciTech Connect (OSTI)

    None

    2004-01-01

    The United States Department of Energy (DOE) created the Nuclear Energy Research Initiative (NERI) in Fiscal Year (FY) 1999 in response to recommendations provided by the President's Committee of Advisors on Science and Technology. The purpose of NERI is to sponsor research and development (R&D) in the nuclear energy sciences to address the principal barriers to the future use of nuclear energy in the United States. NERI is helping to preserve the nuclear science and engineering infrastructure within the Nation's universities, laboratories, and industry, and is advancing the development of nuclear energy technology, enabling the United States to maintain a competitive position in nuclear science and technology. Research under this initiative also addresses issues associated with the maintenance of existing U.S. nuclear plants. The NERI program is managed and funded by DOE's Office of Nuclear Energy, Science and Technology. ''The Nuclear Energy Research Initiative 2004 Annual Report'' serves to inform interested parties of progress made in NERI on a programmatic level as well as research progress made on individual NERI projects. Section 2 of this report provides background on the creation and implementation of NERI and on the focus areas for NERI research. Section 3 provides a discussion on NERI's mission, goals and objectives, and work scope. Section 4 highlights the major accomplishments of the NERI projects and provides brief summaries of the NERI research efforts that were completed in 2004. Section 5 provides a discussion on the impact NERI has had on U.S. university nuclear programs. Sections 6 through 8 provide project status reports by research area for each of the fiscal year (FY) 2001 and 2002 projects that were active in FY 2004. Research objectives, progress made over the last year, and activities planned for the next year are described for each project. Sections 9 through 11 present each of the newly awarded 2005 NERI projects in their corresponding focus area. Each abstract includes a brief description of the project, its proposed work scope, and its participants. Project numbers are designated by the FY in which the award was made. At the end of the document, there is an Index of NERI Projects grouped by FY and sequentially ordered by project number.

  17. Natural gas annual 1995

    SciTech Connect (OSTI)

    1996-11-01

    The Natural Gas Annual provides information on the supply and disposition of natural gas to a wide audience including industry, consumers, Federal and State agencies, and educational institutions. The 1995 data are presented in a sequence that follows natural gas (including supplemental supplies) from its production to its end use. This is followed by tables summarizing natural gas supply and disposition from 1991 to 1995 for each Census Division and each State. Annual historical data are shown at the national level.

  18. Natural gas annual 1994

    SciTech Connect (OSTI)

    NONE

    1995-11-17

    The Natural Gas Annual provides information on the supply and disposition of natural gas to a wide audience including industry, consumers, Federal and State agencies, and educational institutions. The 1994 data are presented in a sequence that follows natural gas (including supplemental supplies) from its production to its end use. This is followed by tables summarizing natural gas supply and disposition from 1990 to 1994 for each Census Division and each State. Annual historical data are shown at the national level.

  19. Graceful Exit Inflation in $f(T)$ Gravity

    E-Print Network [OSTI]

    G. G. L. Nashed; W. El Hanafy; Sh. Kh. Ibrahim

    2015-04-04

    We apply a quadratic teleparallel torsion scalar of the $f(T)=T+\\alpha T^{2}$ field equations to the spatially flat Friedmann-Robertson-Walker (FRW) model. We assume two perfect fluid components, the matter component has a fixed equation of state (EoS) parameter $\\omega$, while the torsion component has a dynamical EoS. We obtain an effective scale factor allowing a graceful exit inflation model with no need to slow roll technique. We perform a standard cosmological study to examine the cosmic evolution. In addition, the effective EoS shows consistent results confirming a smooth phase transition from inflation to radiation dominant universe. We consider the case when the torsion is made of a scalar field. This treatment enables us to induce a scalar field sensitive to the spacetime symmetry with an effective potential constructed from the quadratic $f(T)$ gravity. The model is parameterized by two parameters ($\\alpha,\\omega$) both derive the universe to exit out of de Sitter expansion. The first is purely gravitational and works effectively at large Hubble regime of the early stage allowing a slow roll potential. The second parameter $\\omega$ is a thermal-like correction coupled to the kinetic term and works effectively at low Hubble regime of late stages. The slow roll analysis of the obtained potential can perform tensor-to-scalar ratio and spectral index parameters consistent with the recent Planck and BICEP2 data. Both cosmological and scalar field analyses show consistent results.

  20. Higgs Inflation, Seesaw Physics and Fermion Dark Matter

    E-Print Network [OSTI]

    Nobuchika Okada; Qaisar Shafi

    2015-01-22

    We present an inflationary model in which the Standard Model Higgs doublet field with non-minimal coupling to gravity drives inflation, and the effective Higgs potential is stabilized by new physics which includes a dark matter particle and right-handed neutrinos for the seesaw mechanism. All of the new particles are fermions, so that the Higgs doublet is the unique inflaton candidate. With central values for the masses of the top quark and the Higgs boson, the renormalization group improved Higgs potential is employed to yield the scalar spectral index $n_s \\simeq 0.968$, the tensor-to-scalar ratio $r \\simeq 0.003$, and the running of the spectral index $\\alpha=dn_s/d \\ln k \\simeq -5.2 \\times 10^{-4}$ for the number of e-folds $N_0=60$ ($n_s \\simeq 0.962$, $r \\simeq 0.004$, and $\\alpha \\simeq -7.5 \\times 10^{-4}$ for $N_0=50$). The fairly low value of $r \\simeq 0.003$ predicted in this class of models means that the ongoing space and land based experiments are not expected to observe gravity waves generated during inflation. [Dedicated to the memory of Dr. Paul Weber (1947 - 2015). Paul was an exceptional human being and a very special friend who will be sorely missed.

  1. Gravity Waves From Non-Minimal Quadratic Inflation

    E-Print Network [OSTI]

    Pallis, Constantinos

    2015-01-01

    We discuss non-minimal quadratic inflation in supersymmetric (SUSY) and non-SUSY models which entails a linear coupling of the inflaton to gravity. Imposing a lower bound on the parameter cR, involved in the coupling between the inflaton and the Ricci scalar curvature, inflation can be attained even for subplanckian values of the inflaton while the corresponding effective theory respects the perturbative unitarity up to the Planck scale. Working in the non-SUSY context we also consider radiative corrections to the inflationary potential due to a possible coupling of the inflaton to bosons or fermions. We find ranges of the parameters, depending mildly on the renormalization scale, with adjustable values of the spectral index ns, tensor-to-scalar ratio r=(2-4)x10^-3, and an inflaton mass close to 3x10^13 GeV. In the SUSY framework we employ two gauge singlet chiral superfields, a logarithmic Kahler potential including all the allowed terms up to fourth order in powers of the various fields, and determine uniqu...

  2. DBI Galileon inflation in the light of Planck 2015

    E-Print Network [OSTI]

    K. Sravan Kumar; Celia Escamilla-Rivera; Juan C. Bueno Sanchez; Paulo Vargas Moniz; Joao Marto

    2015-07-14

    In this work we consider a DBI Galileon (DBIG) inflationary model and constrain its parameter space with the Planck 2015 and BICEP2/Keck array and Planck (BKP) joint analysis data by means of a potential independent analysis. We focus our attention on inflationary solutions characterized by a constant or varying sound speed as well as warp factor. We impose bounds on stringy aspects of the model, such as the warp factor $\\left(f\\right)$ and the induced gravity parameter $\\left(\\tilde{m}\\right)$. We find that inflation happens at the GUT scale with $r=\\mathcal{O}\\left(10^{-3}\\right)$. In addition, we obtain the tilt of the tensor power spectrum and test the standard inflationary consistency relation $\\left(r\\simeq-8n_{t}\\right)$ against the latest bounds from the combined results of BKP+Laser Interferometer Gravitational-Waves Observatory (LIGO), and find that DBIG inflation predicts a red spectral index for the tensor power spectrum.

  3. Higher order corrections in minimal supergravity models of inflation

    SciTech Connect (OSTI)

    Ferrara, Sergio; Kallosh, Renata; Linde, Andrei; Porrati, Massimo E-mail: kallosh@stanford.edu E-mail: massimo.porrati@nyu.edu

    2013-11-01

    We study higher order corrections in new minimal supergravity models of a single scalar field inflation. The gauging in these models leads to a massive vector multiplet and the D-term potential for the inflaton field with a coupling g{sup 2} ? 10{sup ?10}. In the de-Higgsed phase with vanishing g{sup 2}, the chiral and vector multiplets are non-interacting, and the potential vanishes. We present generic manifestly supersymmetric higher order corrections for these models. In particular, for a supersymmetric gravity model ?R+R{sup 2} we derive manifestly supersymmetric corrections corresponding to R{sup n}. The dual version corresponds to a standard supergravity model with a single scalar and a massive vector. It includes, in addition, higher Maxwell curvature/scalar interaction terms of the Born-Infeld type and a modified D-term scalar field potential. We use the dual version of the model to argue that higher order corrections do not affect the last 60 e-foldings of inflation; for example the ?R{sup 4} correction is irrelevant as long as ? < 10{sup 24}.

  4. Non-minimal Higgs inflation and frame dependence in cosmology

    SciTech Connect (OSTI)

    Steinwachs, Christian F.; Kamenshchik, Alexander Yu.

    2013-02-21

    We investigate a very general class of cosmological models with scalar fields non-minimally coupled to gravity. A particular representative in this class is given by the non-minimal Higgs inflation model in which the Standard Model Higgs boson and the inflaton are described by one and the same scalar particle. While the predictions of the non-minimal Higgs inflation scenario come numerically remarkably close to the recently discovered mass of the Higgs boson, there remains a conceptual problem in this model that is associated with the choice of the cosmological frame. While the classical theory is independent of this choice, we find by an explicit calculation that already the first quantum corrections induce a frame dependence. We give a geometrical explanation of this frame dependence by embedding it into a more general field theoretical context. From this analysis, some conceptional points in the long lasting cosmological debate: 'Jordan frame vs. Einstein frame' become more transparent and in principle can be resolved in a natural way.

  5. Cosmological magnetic fields from inflation in extended electromagnetism

    E-Print Network [OSTI]

    Jose Beltran Jimenez; Antonio L. Maroto

    2011-01-10

    In this work we consider an extended electromagnetic theory in which the scalar state which is usually eliminated by means of the Lorenz condition is allowed to propagate. This state has been shown to generate a small cosmological constant in the context of standard inflationary cosmology. Here we show that the usual Lorenz gauge-breaking term now plays the role of an effective electromagnetic current. Such a current is generated during inflation from quantum fluctuations and gives rise to a stochastic effective charge density distribution. Due to the high electric conductivity of the cosmic plasma after inflation, the electric charge density generates currents which give rise to both vorticity and magnetic fields on sub-Hubble scales. Present upper limits on vorticity coming from temperature anisotropies of the CMB are translated into lower limits on the present value of cosmic magnetic fields. We find that, for a nearly scale invariant vorticity spectrum, magnetic fields $B_{\\lambda}> 10^{-12}$ G are typically generated with coherence lengths ranging from sub-galactic scales up to the present Hubble radius. Those fields could act as seeds for a galactic dynamo or even account for observations just by collapse and differential rotation of the protogalactic cloud.

  6. Supersymmetric B – L inflation near the conformal coupling

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Arai, Masato; Kawai, Shinsuke; Okada, Nobuchika

    2014-06-01

    We investigate a novel scenario of cosmological inflation in a gauged B-L extended minimal supersymmetric Standard Model with R-symmetry. We use a noncanonical Kähler potential and a superpotential, both preserving the R-symmetry to construct a model of slow-roll inflation. The model is controlled by two real parameters: the nonminimal coupling ? that originates from the Kähler potential, and the breaking scale v of the U(1)B-L symmetry. We compute the spectrum of the cosmological microwave background radiation and show that the prediction of the model fits well the recent Planck satellite observation for a wide range of the parameter space. Wemore »also find that the typical reheating temperature of the model is low enough to avoid the gravitino problem but nevertheless allows sufficient production of the baryon asymmetry if we take into account the effect of resonance enhancement. The model is free from cosmic strings that impose stringent constraints on generic U(1)B-L based scenarios, as in our scenario the U(1)B-L symmetry is broken from the onset.« less

  7. B-modes and the Nature of Inflation

    E-Print Network [OSTI]

    Daniel Baumann; Daniel Green; Rafael A. Porto

    2015-12-09

    Observations of the cosmic microwave background do not yet determine whether inflation was driven by a slowly-rolling scalar field or involved another physical mechanism. In this paper we discuss the prospects of using the power spectra of scalar and tensor modes to probe the nature of inflation. We focus on the leading modification to the slow-roll dynamics, which entails a sound speed $c_s$ for the scalar fluctuations. We derive analytically a lower bound on $c_s$ in terms of a given tensor-to-scalar ratio $r$, taking into account the difference in the freeze-out times between the scalar and tensor modes. We find that any detection of primordial B-modes with $r > 0.01$ implies a lower bound on $c_s$ that is stronger than the bound derived from the absence of non-Gaussianity in the Planck data. For $r \\gtrsim 0.1$, the bound would be tantalizingly close to a critical value for the sound speed, $(c_s)_\\star = 0.47$ (corresponding to $(f_{\\rm NL}^{\\rm equil})_\\star = -0.93$), which we show serves as a threshold for non-trivial dynamics beyond slow-roll. We also discuss how an order-one level of equilateral non-Gaussianity is a natural observational target for other extensions of the canonical paradigm.

  8. Hot-Jupiter Inflation due to Deep Energy Deposition

    E-Print Network [OSTI]

    Ginzburg, Sivan

    2015-01-01

    Some extrasolar giant planets in close orbits---"hot Jupiters"---exhibit larger radii than that of a passively cooling planet. The extreme irradiation $L_{\\rm eq}$ these hot Jupiters receive from their close in stars creates a thick isothermal layer in their envelopes, which slows down their convective cooling, allowing them to retain their inflated size for longer. This is yet insufficient to explain the observed sizes of the most inflated planets. Some models invoke an additional power source, deposited deep in the planet's envelope. Here we present an analytical model for the cooling of such irradiated, and internally heated gas giants. We show that a power source $L_{\\rm dep}$, deposited at an optical depth $\\tau_{\\rm dep}$, creates an exterior convective region, between optical depths $L_{\\rm eq}/L_{\\rm dep}$ and $\\tau_{\\rm dep}$, beyond which a thicker isothermal layer exists, which in extreme cases may extend to the center of the planet. This convective layer, which occurs only for $L_{\\rm dep}\\tau_{\\r...

  9. Blue tensor spectrum from particle production during inflation

    SciTech Connect (OSTI)

    Mukohyama, Shinji; Namba, Ryo; Peloso, Marco; Shiu, Gary E-mail: ryo.namba@ipmu.jp E-mail: shiu@physics.wisc.edu

    2014-08-01

    We discuss a mechanism of particle production during inflation that can result in a blue gravitational wave (GW) spectrum, compatible with the BICEP2 result and with the r < 0.11 limit on the tensor-to-scalar ratio at the Planck pivot scale. The mechanism is based on the production of vector quanta from a rolling pseudo-scalar field. Both the vector and the pseudo-scalar are only gravitationally coupled to the inflaton, to keep the production of inflaton quanta at an unobservable level (the overproduction of non-gaussian scalar perturbations is a generic difficulty for mechanisms that aim to generate a visible GW signal from particle production during inflation). This mechanism can produce a detectable amount of GWs for any inflationary energy scale. The produced GWs are chiral and non-gaussian; both these aspects can be tested with large-scale polarization data (starting from Planck). We study how to reconstruct the pseudo-scalar potential from the GW spectrum.

  10. Primordial Black Holes Formation from Particle Production during Inflation

    E-Print Network [OSTI]

    Erfani, Encieh

    2015-01-01

    We study the possibility that particle production during inflation can source the required power spectrum for dark matter (DM) primordial black holes (PBH) formation. We consider the scalar and the gauge quanta production in inflation models, where in the latter case, we focus in two sectors: inflaton coupled i) directly and ii) gravitationally to a $U(1)$ gauge field. We do not assume any specific potential for the inflaton field. Hence, in the gauge production case, in a model independent way we show that the non-production of DM PBHs puts stronger upper bound on the particle production parameter. Our analysis show that this bound is more stringent than the bounds from the bispectrum and the tensor-to-scalar ratio derived by gauge production in these models. In the scenario where the inflaton field coupled to a scalar field, we put an upper bound on the amplitude of the generated scalar power spectrum by non-production of PBHs. As a by-product we also show that the required scalar power spectrum for PBHs fo...

  11. Blue Tensor Spectrum from Particle Production during Inflation

    E-Print Network [OSTI]

    Shinji Mukohyama; Ryo Namba; Marco Peloso; Gary Shiu

    2014-07-25

    We discuss a mechanism of particle production during inflation that can result in a blue gravitational wave (GW) spectrum, compatible with the BICEP2 result and with the r < 0.11 limit on the tensor-to-scalar ratio at the Planck pivot scale. The mechanism is based on the production of vector quanta from a rolling pseudo-scalar field. Both the vector and the pseudo-scalar are only gravitationally coupled to the inflaton, to keep the production of inflaton quanta at an unobservable level (the overproduction of non-gaussian scalar perturbations is a generic difficulty for mechanisms that aim to generate a visible GW signal from particle production during inflation). This mechanism can produce a detectable amount of GWs for any inflationary energy scale. The produced GWs are chiral and non-gaussian; both these aspects can be tested with large-scale polarization data (starting from Planck). We study how to reconstruct the pseudo-scalar potential from the GW spectrum.

  12. Observational constraints on an inflation model with a running mass

    E-Print Network [OSTI]

    Laura Covi; David H. Lyth; Leszek Roszkowski

    1998-09-09

    We explore a model of inflation where the inflaton mass-squared is generated at a high scale by gravity-mediated soft supersymmetry breaking, and runs at lower scales to the small value required for slow-roll inflation. The running is supposed to come from the coupling of the inflaton to a non-Abelian gauge field. In contrast with earlier work, we do not constrain the magnitude of the supersymmetry breaking scale, and we find that the model might work even if squark and slepton masses come from gauge-mediated supersymmetry breaking. With the inflaton and gaugino masses in the expected range, and $\\alpha = g^2/4\\pi $ in the range $10^{-2}$ to $10^{-3}$ (all at the high scale) the model can give the observed cosmic microwave anisotropy, and a spectral index in the observed range. The latter has significant variation with scale, which can confirm or rule out the model in the forseeable future.

  13. Martin H. Gutknecht Educational Experience and Interests Educational Experience and Interests

    E-Print Network [OSTI]

    Gutknecht, Martin H.

    Martin H. Gutknecht Educational Experience and Interests Educational Experience and Interests taught by the deceased Prof. Heinz Rutishauser, one of the most outstanding and ingenious numerical and distributing them! Teaching and educational writing in recent years After I became director

  14. Industrial & Systems Engineering Areas of Engineering Interests

    E-Print Network [OSTI]

    Berdichevsky, Victor

    selected in Biomedical, Civil and Environmental, Electrical and Mechanical Engineering are thoseIndustrial & Systems Engineering Areas of Engineering Interests The Department of Industrial and Systems Engineering understands our students may work as Industrial Engineers in other engineering

  15. Interested in Political and Environmental Psychology?

    E-Print Network [OSTI]

    British Columbia, University of

    Interested in Political and Environmental Psychology? The Reactions to be stressful, the REST Lab in the Department of Psychology at UBC continues to do research in three major areas: Political Psychology Ongoing projects are studying

  16. Financial Conflict of Interest Policy A. OVERVIEW

    E-Print Network [OSTI]

    to conducting research in a manner that promotes the integrity of the research and maintains the public trust external commitments or significant financial interests of any person(s) with involvement in the design

  17. CIVIL ENGINEERING AY12 ANNUAL REPORT ANNUAL REPORT

    E-Print Network [OSTI]

    Maxwell, Bruce D.

    CIVIL ENGINEERING AY12 ANNUAL REPORT 201112 ANNUAL REPORT CIVIL ENGINEERING Montana State University Bozeman Bozeman, MT 59717 Brett Gunnink Department Head Offering: Bachelor of Science in Civil Engineering Bachelor

  18. Annual Report GreenTouch 20102011 Annual Report

    E-Print Network [OSTI]

    Lefèvre, Laurent

    2010­2011 Annual Report #12;1 GreenTouch 2010­2011 Annual Report Contents Chairman's Letter............................................................ 30 Service Energy Aware Sustainable Optical Networks (SEASON............................................................................................ 43 Beyond Cellular Green Generation (BCG2

  19. Postdoctoral Research Awards Annual Research Meeting: Joseph...

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

    Joseph Mondloch Postdoctoral Research Awards Annual Research Meeting: Joseph Mondloch Postdoctoral Research Awards Annual Research Meeting: Joseph Mondloch poster presentation....

  20. Summary of Joint Affiliate Annual Disclosure Survey Process Flows for Faculty Members

    E-Print Network [OSTI]

    Chisholm, Rex L.

    conflict of interest survey disclosures and their subsequent review, including measures to address subsequent request), not abiding by a conflict of interest ("COI") management plan, or otherwiseSummary of Joint Affiliate Annual Disclosure Survey Process Flows for Faculty Members March 6, 2014

  1. International energy annual 1996

    SciTech Connect (OSTI)

    1998-02-01

    The International Energy Annual presents an overview of key international energy trends for production, consumption, imports, and exports of primary energy commodities in over 220 countries, dependencies, and areas of special sovereignty. Also included are population and gross domestic product data, as well as prices for crude oil and petroleum products in selected countries. Renewable energy reported in the International Energy Annual includes hydroelectric power, geothermal, solar, and wind electric power, biofuels energy for the US, and biofuels electric power for Brazil. New in the 1996 edition are estimates of carbon dioxide emissions from the consumption of petroleum and coal, and the consumption and flaring of natural gas. 72 tabs.

  2. Natural gas annual 1997

    SciTech Connect (OSTI)

    1998-10-01

    The Natural Gas Annual provides information on the supply and disposition of natural gas to a wide audience including industry, consumers, Federal and State agencies, and educational institutions. The 1997 data are presented in a sequence that follows natural gas (including supplemental supplies) from its production to its end use. This is followed by tables summarizing natural gas supply and disposition from 1993 to 1997 for each Census Division and each State. Annual historical data are shown at the national level. 27 figs., 109 tabs.

  3. Annual Site Environmental Report

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B L O O D S TAPropaneandAn319 125Annual Reports Annual2014

  4. Annual Report 2008.doc

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News Publications TraditionalWith PropaneNaturalTestAnAlexAnnualSRS Cold War FY08 Annual

  5. Annual Reports - Hanford Site

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News Publications TraditionalWith PropaneNaturalTestAnAlexAnnualSRS Cold War FY08Annual

  6. Annual Site Environmental Report

    Broader source: Energy.gov (indexed) [DOE]

    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 Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i n c i p a l De p u t yWaste |4 2014 Annual Planning Summary for the2011Annual

  7. Higgs portal to Inflation and fermionic dark matter

    E-Print Network [OSTI]

    Aditya Aravind; Minglei Xiao; Jiang-Hao Yu

    2015-12-30

    We investigate an inflationary model involving a gauge singlet scalar and fermionic dark matter. The mixing between the singlet scalar and the Higgs boson provides a portal to dark matter. The inflaton could either be the Higgs boson or the singlet scalar, and slow roll inflation is realized via its non-minimal coupling to gravity. In this setup, the effective scalar potential is stabilized by the mixing between two scalars and coupling with dark matter. We study constraints from collider searches, relic density and direct detection, and find that dark matter mass should be around half the mass of either the Higgs boson or singlet scalar. Using the renormalization group equation improved scalar potential and putting all the constraints together, we show that the inflationary observables $n_s-r$ are consistent with current Planck data.

  8. Inflation scenario via the Standard Model Higgs boson and LHC

    E-Print Network [OSTI]

    A. O. Barvinsky; A. Yu. Kamenshchik; A. A. Starobinsky

    2008-09-11

    We consider a quantum corrected inflation scenario driven by a generic GUT or Standard Model type particle model whose scalar field playing the role of an inflaton has a strong non-minimal coupling to gravity. We show that currently widely accepted bounds on the Higgs mass falsify the suggestion of the paper arXiv:0710.3755 (where the role of radiative corrections was underestimated) that the Standard Model Higgs boson can serve as the inflaton. However, if the Higgs mass could be raised to $\\sim 230$ GeV, then the Standard Model could generate an inflationary scenario with the spectral index of the primordial perturbation spectrum $n_s\\simeq 0.935$ (barely matching present observational data) and the very low tensor-to-scalar perturbation ratio $r\\simeq 0.0006$.

  9. Bose-Einstein condensation as an alternative to inflation

    E-Print Network [OSTI]

    Das, Saurya

    2015-01-01

    It was recently shown that gravitons with a very small mass should have formed a Bose-Einstein condensate in the very early Universe, whose density and quantum potential can account for the dark matter and dark energy in the Universe respectively. Here we show that the condensation can also naturally explain the observed large scale homogeneity and isotropy of the Universe. Furthermore gravitons continue to fall into their ground state within the condensate at every epoch, accounting for the observed flatness of space at cosmological distances scales. Finally, we argue that the density perturbations due to quantum fluctuations within the condensate give rise to a scale invariant spectrum. This therefore provides a viable alternative to inflation, which is not associated with the well-known problems associated with the latter.

  10. Non-Gaussian perturbations from multi-field inflation

    E-Print Network [OSTI]

    Laura E. Allen; Sujata Gupta; David Wands

    2005-12-13

    We show how the primordial bispectrum of density perturbations from inflation may be characterised in terms of manifestly gauge-invariant cosmological perturbations at second order. The primordial metric perturbation, zeta, describing the perturbed expansion of uniform-density hypersurfaces on large scales is related to scalar field perturbations on unperturbed (spatially-flat) hypersurfaces at first- and second-order. The bispectrum of the metric perturbation is thus composed of (i) a local contribution due to the second-order gauge-transformation, and (ii) the instrinsic bispectrum of the field perturbations on spatially flat hypersurfaces. We generalise previous results to allow for scale-dependence of the scalar field power spectra and correlations that can develop between fields on super-Hubble scales.

  11. 2010 Quality Council Annual Report

    Broader source: Energy.gov [DOE]

    DEPARTMENT OF ENERGY QUALITY COUNCIL ANNUAL REPORT For Calendar Year 2010 Office of Health Safety and Security

  12. Gravity Waves From Non-Minimal Quadratic Inflation

    E-Print Network [OSTI]

    Constantinos Pallis; Qaisar Shafi

    2015-03-27

    We discuss non-minimal quadratic inflation in supersymmetric (SUSY) and non-SUSY models which entails a linear coupling of the inflaton to gravity. Imposing a lower bound on the parameter cR, involved in the coupling between the inflaton and the Ricci scalar curvature, inflation can be attained even for subplanckian values of the inflaton while the corresponding effective theory respects the perturbative unitarity up to the Planck scale. Working in the non-SUSY context we also consider radiative corrections to the inflationary potential due to a possible coupling of the inflaton to bosons or fermions. We find ranges of the parameters, depending mildly on the renormalization scale, with adjustable values of the spectral index ns, tensor-to-scalar ratio r=(2-4)x10^-3, and an inflaton mass close to 3x10^13 GeV. In the SUSY framework we employ two gauge singlet chiral superfields, a logarithmic Kahler potential including all the allowed terms up to fourth order in powers of the various fields, and determine uniquely the superpotential by applying a continuous R and a global U(1) symmetry. When the Kahler manifold exhibits a no-scale-type symmetry, the model predicts ns=0.963 and r=0.004. Beyond no-scale SUGRA, ns and r depend crucially on the coefficient involved in the fourth order term, which mixes the inflaton with the accompanying non-inflaton field in the Kahler potential, and the prefactor encountered in it. Increasing slightly the latter above (-3), an efficient enhancement of the resulting r can be achieved putting it in the observable range. The inflaton mass in the last case is confined in the range (5-9)x10^13 GeV.

  13. Chaotic inflation from nonlinear sigma models in supergravity

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Hellerman, Simeon; Kehayias, John; Yanagida, Tsutomu T.

    2015-03-01

    We present a common solution to the puzzles of the light Higgs or quark masses and the need for a shift symmetry and large field values in high scale chaotic inflation. One way to protect, for example, the Higgs from a large supersymmetric mass term is if it is the Nambu–Goldstone boson (NGB) of a nonlinear sigma model. However, it is well known that nonlinear sigma models (NLSMs) with nontrivial Kähler transformations are problematic to couple to supergravity. An additional field is necessary to make the Kähler potential of the NLSM invariant in supergravity. This field must have a shiftmore »symmetry — making it a candidate for the inflaton (or axion). We give an explicit example of such a model for the coset space SU(3)/SU(2) × U(1), with the Higgs as the NGB, including breaking the inflaton’s shift symmetry and producing a chaotic inflation potential. This construction can also be applied to other models, such as one based on E?/SO(10) × U(1) × U(1) which incorporates the first two generations of (light) quarks as the Nambu–Goldstone multiplets, and has an axion in addition to the inflaton. Along the way we clarify and connect previous work on understanding NLSMs in supergravity and the origin of the extra field (which is the inflaton here), including a connection to Witten–Bagger quantization. This framework has wide applications to model building; a light particle from a NLSM requires, in supergravity, exactly the structure for chaotic inflaton or an axion« less

  14. Data Management Group Annual Report

    E-Print Network [OSTI]

    Toronto, University of

    Data Management Group Annual Report 1997 #12;Data Management Group Annual Report 1997 A co-operative project that is jointly funded by members of the Toronto Area Transportation Planning Data Collection: (416) 978-3941 #12;Data Management Group 1997 Annual Report Table of Contents 1 INTRODUCTION

  15. Equity Options and Stochastic Interest Rates1

    E-Print Network [OSTI]

    Ouwehand, Peter

    M Acott February 14, 2006 1 The financial assistance of the Department of Labour (DoL) towards risk of equity options except around the Optimal Exercise Boundary of American options, but displays enhanced convexity (i.e. `Gamma'-type risks) over the stochastic interest rate model. #12;Acknowledgements

  16. FACULTY RESEARCH INTERESTS DAVID SOMERS (B)

    E-Print Network [OSTI]

    Rucci, Michele

    functional MRI, psychophysics, and computational modeling to investigate the mechanisms underlying perception in which unconscious thoughts about gender influence our understanding of the world and our assessments Interests of the Bullock lab are focused on the use of integrated computational models of local circuits

  17. MINING TEMPORAL SEQUENCES TO DISCOVER INTERESTING PATTERNS

    E-Print Network [OSTI]

    Holder, Lawrence B.

    MINING TEMPORAL SEQUENCES TO DISCOVER INTERESTING PATTERNS Edwin O. Heierman, III, G. Michael, Texas 76019-0015 {heierman, youngbld, cook@cse.uta.edu ABSTRACT When mining temporal sequences sequences. In this paper, we present a novel data mining technique based on the Minimum Description Length

  18. Technical Report Mining Interesting Sets and Rules

    E-Print Network [OSTI]

    Antwerpen, Universiteit

    Technical Report 09.02 Mining Interesting Sets and Rules in Relational Databases Bart Goethals, Wim Middelheimlaan 1 B-2020 Antwerp ­ Belgium #12;1 Abstract In this paper we propose a new and elegant approach toward the generalization of frequent itemset mining to the multi-relational case. We define relational

  19. Do High Oil Prices Presage Inflation? The Evidence from G-5 Countries

    E-Print Network [OSTI]

    LeBlanc, Michael; Chinn, Menzie David

    2004-01-01

    Do High Oil Prices Presage Inflation? The Evidence from G-5to be more sensitive to oil prices than in the U.S. , isa dollar denominated oil price. References Blanchard O.J.

  20. Integrating Inflation-Linked Instruments in the Asset Liability Management Framework

    E-Print Network [OSTI]

    Bhulai, Sandjai

    Integrating Inflation-Linked Instruments in the Asset Liability Management Framework Angelique Mak.........................................................................................................16 3 Asset and Liability Management ...... University Amsterdam includes a six-month internship. My internship took place at the Group Asset Liability

  1. The relation between aggression and inflated self-concepts in aggressive children: a replication study 

    E-Print Network [OSTI]

    Meehan, Barbara Theresa

    2000-01-01

    This study examined the relation between inflated self-concepts and levels of aggression in a sample of 167 aggressive second- and third-grade students. Variable-oriented data analyses of children's self- and others' reports of competence...

  2. International Energy Annual, 1992

    SciTech Connect (OSTI)

    Not Available

    1994-01-14

    This report is prepared annually and presents the latest information and trends on world energy production and consumption for petroleum, natural gas, coal, and electricity. Trade and reserves are shown for petroleum, natural gas, and coal. Prices are included for selected petroleum products. Production and consumption data are reported in standard units as well as British thermal units (Btu) and joules.

  3. Annual Fire Safety Report

    E-Print Network [OSTI]

    Al Faruque, Mohammad Abdullah

    1 2014 Annual Fire Safety Report University of California Campus Fire Marshals HIGHER EDUCATION to the Fire Safety in Student Housing Buildings of current or perspective students and employees be reported INTRODUCTION Fire Safety is an essential tool in protecting a campus community from injuries, deaths, business

  4. Annual Fire Safety Report

    E-Print Network [OSTI]

    2014 Annual Fire Safety Report University of California, Santa Barbara Fire Marshals) requires that certain information pertaining to the Fire Safety in Student Housing Buildings of current. #12; 2 9/19/14 HIGHER EDUCATION OPPORTUNITY ACT INTRODUCTION Fire Safety is an essential tool

  5. Annual Report and Accounts

    E-Print Network [OSTI]

    ;#12;Forest Research Annual Report and Accounts 2010­2011 Presented to the House of Commons pursuant to Section 7 of The Government Resources and Accounts Act 2000 Ordered by the House of Commons to be printed ...................................................... 12 Centre for Human and Ecological Sciences

  6. International Exeter annual report

    E-Print Network [OSTI]

    Wirosoetisno, Djoko

    to invest in international engagement are having an impact. As we enter the last year of our current Ambassador Diego Gomez-Pickering, the Ambassador of Mexico to the UK, Exeter, September 2014 #12;annual-fee level of 54% in Life and Environmental Sciences; 35% for Humanities; 26% for Social Sciences

  7. Forest Research Annual Report

    E-Print Network [OSTI]

    Forest Research Annual Report and Accounts 2000-2001 An agency of the Forestry Commission #12-SMITH Chief Research Officer Forest Research Members DR A.R. GRIFFIN Renewable Resources Division Shell Research Organisation Spring 2001 Advisory Committee on Forest Research Chief Executive Chief Research

  8. BALTIMORE'S ANNUAL HEALTHY HARBOR

    E-Print Network [OSTI]

    Hilderbrand, Robert H.

    1 BALTIMORE'S ANNUAL 2014 HEALTHY HARBOR REPORT CARD "If I see someone litter I'll ask, `please interceptor located at the end of the Jones Falls in Baltimore's Inner Harbor. The students, members, Baltimore's streams, rivers and Harbor scored between 52% and 61%. While these scores are poor and nearly

  9. NERSC Annual Report 2005

    SciTech Connect (OSTI)

    Hules (Ed.), John

    2006-07-31

    The National Energy Research Scientific Computing Center (NERSC) is the premier computational resource for scientific research funded by the DOE Office of Science. The Annual Report includes summaries of recent significant and representative computational science projects conducted on NERSC systems as well as information about NERSC's current and planned systems and services.

  10. PRI Annual Report 2004

    E-Print Network [OSTI]

    Maynard-Moody, Steven

    2005-04-01

    , and stress. A large section of the survey included PRI 2004 ANNUAL REPORT 8 questions drawn from a variety of different psychological instruments that measure core... years, we have provided financial and institutional support for 8 new faculty hires and 14 junior faculty representing 9 university departments. Assisted the university with faculty retention. PRI works to retain research-active social scientists...

  11. 2016 Annual Merit Review

    Broader source: Energy.gov [DOE]

    At the Annual Merit Review and Peer Evaluation, project investigators present information on their efforts that have been financially supported by the Vehicle Technologies Office in the last year. Expert reviewers then evaluate these projects based on how much they contribute to or advance the Energy Department’s missions and goals.

  12. University Library Annual Report

    E-Print Network [OSTI]

    Brierley, Andrew

    and a recognition of the need to provide zones within the building for different types of library user behaviourUniversity Library Annual Report 2011-2012 #12;Academic Year 2011-12 brought with it another period of turbulent change ­ most of it positive ­ for the University Library. The major and very tangible difference

  13. 2014 Annual AFN Convention

    Office of Energy Efficiency and Renewable Energy (EERE)

    The AFN Convention is the largest representative annual gathering in the United States of any Native peoples. In addition to the memorable keynote speeches, the expert panels and special reports, the Convention features several evenings of cultural performances known as Quyana Alaska.

  14. Warm inflation with coupled thermal quantum fluctuations: a new semiclassical approach

    E-Print Network [OSTI]

    Mauricio Bellini

    2000-10-25

    I consider a new semiclassical expansion for the inflaton field in the framework of warm inflation scenario. The fluctuations of the matter field are considered as thermally coupled with the particles of the thermal bath. This coupling parameter depends on the temperature of the bath. The power spectrum remains invariant under this new semiclassical expansion for the inflaton. However, I find that the thermal component of the amplitude for the primordial field fluctuations should be very small at the end of inflation.

  15. Self-unitarization of New Higgs Inflation and compatibility with Planck and BICEP2 data

    E-Print Network [OSTI]

    Cristiano Germani; Yuki Watanabe; Nico Wintergerst

    2014-12-09

    In this paper we show that the Germani-Kehagias model of Higgs inflation (or New Higgs Inflation), where the Higgs boson is kinetically non-minimally coupled to the Einstein tensor is in perfect compatibility with the latest Planck and BICEP2 data. Moreover, we show that the tension between the Planck and BICEP2 data can be relieved within the New Higgs inflation scenario by a negative running of the spectral index. Regarding the unitarity of the model, we argue that it is unitary throughout the evolution of the Universe. Weak couplings in the Higgs-Higgs and Higgs-graviton sectors are provided by a large background dependent cut-off scale during inflation. In the same regime, the W and Z gauge bosons acquire a very large mass, thus decouple. On the other hand, if they are also non-minimally coupled to the Higgs boson, their effective masses can be enormously reduced. In this case, the W and Z bosons are no longer decoupled. After inflation, the New Higgs model is well approximated by a quartic Galileon with a renormalizable potential. We argue that this can unitarily create the right conditions for inflation to eventually start.

  16. Self-unitarization of New Higgs Inflation and compatibility with Planck and BICEP2 data

    SciTech Connect (OSTI)

    Germani, Cristiano; Wintergerst, Nico; Watanabe, Yuki E-mail: watanabe@resceu.s.u-tokyo.ac.jp

    2014-12-01

    In this paper we show that the Germani-Kehagias model of Higgs inflation (or New Higgs Inflation), where the Higgs boson is kinetically non-minimally coupled to the Einstein tensor is in perfect compatibility with the latest Planck and BICEP2 data. Moreover, we show that the tension between the Planck and BICEP2 data can be relieved within the New Higgs inflation scenario by a negative running of the spectral index. Regarding the unitarity of the model, we argue that it is unitary throughout the evolution of the Universe. Weak couplings in the Higgs-Higgs and Higgs-graviton sectors are provided by a large background dependent cut-off scale during inflation. In the same regime, the W and Z gauge bosons acquire a very large mass, thus decouple. On the other hand, if they are also non-minimally coupled to the Higgs boson, their effective masses can be enormously reduced. In this case, the W and Z bosons are no longer decoupled. After inflation, the New Higgs model is well approximated by a quartic Galileon with a renormalizable potential. We argue that this can unitarily create the right conditions for inflation to eventually start.

  17. Significant Financial Interest Disclosure Form -Page 1 Investigator Financial Conflict of Interest Disclosure Policy

    E-Print Network [OSTI]

    Kunkle, Tom

    freedom and research integrity. The objectivity of investigators is an essential element of scientific, not by other interests that could influence or undermine the scientific integrity of their work. Conflict, legal, or professional duties. The potential for personal gain or the existence of competing interests

  18. Supplier Disclosure of Conflict of Interest -2/2015 MSU Supplier Disclosure of Conflict of Interest

    E-Print Network [OSTI]

    Supplier Disclosure of Conflict of Interest - 2/2015 MSU Supplier Disclosure of Conflict of Interest As a supplier to Michigan State University (MSU), a state university and public institution, any to place either the supplier or employee in jeopardy. Purchasing will advise the employee and/or supplier

  19. Vehicle for carrying an object of interest

    DOE Patents [OSTI]

    Zollinger, W. Thor (Idaho Falls, ID); Ferrante, Todd A. (Westerville, OH)

    1998-01-01

    A vehicle for carrying an object of interest across a supporting surface including a frame having opposite first and second ends; a first pair of wheels fixedly mounted on the first end of the frame; a second pair of wheels pivotally mounted on the second end of the frame; and a pair of motors borne by the frame, each motor disposed in driving relation relative to one of the pairs of wheels, the motors propelling the vehicle across the supporting surface.

  20. Vehicle for carrying an object of interest

    DOE Patents [OSTI]

    Zollinger, W.T.; Ferrante, T.A.

    1998-10-13

    A vehicle for carrying an object of interest across a supporting surface including a frame having opposite first and second ends; a first pair of wheels fixedly mounted on the first end of the frame; a second pair of wheels pivotally mounted on the second end of the frame; and a pair of motors borne by the frame, each motor disposed in driving relation relative to one of the pairs of wheels, the motors propelling the vehicle across the supporting surface. 8 figs.

  1. Petroleum marketing annual 1994

    SciTech Connect (OSTI)

    1995-08-24

    The Petroleum Marketing Annual (PMA) provides information and statistical data on a variety of crude oils and refined petroleum products. The publication presents statistics on crude oil costs and refined petroleum products sales for use by industry, government, private sector analysis, educational institutions, and consumers. Data on crude oil include the domestic first purchase price, the fob and landed cost of imported crude oil, and the refiners` acquisition cost of crude oil. Refined petroleum product sales data include motor gasoline, distillates, residuals, aviation fuels, kerosene, and propane. The Petroleum Marketing Division, Office of Oil and Gas, Energy Information Administration ensures the accuracy, quality, and confidentiality of the published data in the Petroleum Marketing Annual. For this production, all estimates have been recalculated since their earlier publication in the Petroleum Marketing Monthly (PMM). These calculations made use of additional data and corrections that were received after the PMM publication date.

  2. Renewable energy annual 1995

    SciTech Connect (OSTI)

    1995-12-01

    The Renewable Energy Annual 1995 is the first in an expected series of annual reports the Energy Information Administration (EIA) intends to publish to provide a comprehensive assessment of renewable energy. This report presents the following information on the history, status, and prospects of renewable energy data: estimates of renewable resources; characterizations of renewable energy technologies; descriptions of industry infrastructures for individual technologies; evaluations of current market status; and assessments of near-term prospects for market growth. An international section is included, as well as two feature articles that discuss issues of importance for renewable energy as a whole. The report also contains a number of technical appendices and a glossary. The renewable energy sources included are biomass (wood), municipal solid waste, biomass-derived liquid fuels, geothermal, wind, and solar and photovoltaic.

  3. Annual Energy Review 2011

    SciTech Connect (OSTI)

    Fichman, Barbara T.

    2012-09-01

    The Annual Energy Review (AER) is the U.S. Energy Information Administration's (EIA) primary report of annual historical energy statistics. For many series, data begin with the year 1949. Included are statistics on total energy production, consumption, trade, and energy prices; overviews of petroleum, natural gas, coal, electricity, nuclear energy, and renewable energy; financial and environment indicators; and data unit conversions. Publication of this report is required under Public Law 95–91 (Department of Energy Organization Act), Section 205(c), and is in keeping with responsibilities given to the EIA under Section 205(a)(2), which states: “The Administrator shall be responsible for carrying out a central, comprehensive, and unified energy data and information program which will collect, evaluate, assemble, analyze, and disseminate data and information....” The AER is intended for use by Members of Congress, Federal and State agencies, energy analysts, and the general public. EIA welcomes suggestions from readers regarding the content of the AER and other EIA publications.

  4. Annual Energy Review 2007

    SciTech Connect (OSTI)

    Seiferlein, Katherine E.

    2008-06-01

    The Annual Energy Review (AER) is the Energy Information Administration's (EIA) primary report of annual historical energy statistics. For many series, data begin with the year 1949. Included are data on total energy production, consumption, and trade; overviews of petroleum, natural gas, coal, electricity, nuclear energy, renewable energy, international energy, as well as financial and environment indicators; and data unit conversion tables. Publication of this report is required under Public Law 95–91 (Department of Energy Organization Act), Section 205(c), and is in keeping with responsibilities given to the EIA under Section 205(a)(2), which states: “The Administrator shall be responsible for carrying out a central, comprehensive, and unified energy data and information program which will collect, evaluate, assemble, analyze, and disseminate data and information....”

  5. Coal industry annual 1997

    SciTech Connect (OSTI)

    1998-12-01

    Coal Industry Annual 1997 provides comprehensive information about US coal production, number of mines, prices, productivity, employment, productive capacity, and recoverable reserves. US Coal production for 1997 and previous years is based on the annual survey EIA-7A, Coal Production Report. This report presents data on coal consumption, coal distribution, coal stocks, coal prices, and coal quality for Congress, Federal and State agencies, the coal industry, and the general public. Appendix A contains a compilation of coal statistics for the major coal-producing States. This report includes a national total coal consumption for nonutility power producers that are not in the manufacturing, agriculture, mining, construction, or commercial sectors. 14 figs., 145 tabs.

  6. 2008 annual merit review

    SciTech Connect (OSTI)

    None, None

    2009-01-18

    The 2008 DOE Vehicle Technologies Program Annual Merit Review was held February 25-28, 2008 in Bethesda, Maryland. The review encompassed all of the work done by the Vehicle Technologies Program: a total of 280 individual activities were reviewed, by a total of just over 100 reviewers. A total of 1,908 individual review responses were received for the technical reviews, and an additional 29 individual review responses were received for the plenary session review.

  7. NERSC 2001 Annual Report

    SciTech Connect (OSTI)

    Hules, John

    2001-12-12

    The National Energy Research Scientific Computing Center (NERSC) is the primary computational resource for scientific research funded by the DOE Office of Science. The Annual Report for FY2001 includes a summary of recent computational science conducted on NERSC systems (with abstracts of significant and representative projects); information about NERSC's current systems and services; descriptions of Berkeley Lab's current research and development projects in applied mathematics, computer science, and computational science; and a brief summary of NERSC's Strategic Plan for 2002-2005.

  8. NERSC 1998 annual report

    SciTech Connect (OSTI)

    Hules, John (ed.)

    1999-03-01

    This 1998 annual report from the National Scientific Energy Research Computing Center (NERSC) presents the year in review of the following categories: Computational Science; Computer Science and Applied Mathematics; and Systems and Services. Also presented are science highlights in the following categories: Basic Energy Sciences; Biological and Environmental Research; Fusion Energy Sciences; High Energy and Nuclear Physics; and Advanced Scientific Computing Research and Other Projects.

  9. Standard Scenarios Annual Report

    Broader source: Energy.gov [DOE]

    The National Renewable Energy Laboratory is conducting a study sponsored by the U.S. Department of Energy DOE, Office of Energy Efficiency and Renewable Energy (EERE), that aims to document and implement an annual process designed to identify a realistic and timely set of input assumptions (e.g., technology cost and performance, fuel costs), and a diverse set of potential futures (standard scenarios), initially for electric sector analysis.

  10. Chemical and biological nonproliferation program. FY99 annual report

    SciTech Connect (OSTI)

    NONE

    2000-03-01

    This document is the first of what will become an annual report documenting the progress made by the Chemical and Biological Nonproliferation Program (CBNP). It is intended to be a summary of the program's activities that will be of interest to both policy and technical audiences. This report and the annual CBNP Summer Review Meeting are important vehicles for communication with the broader chemical and biological defense and nonproliferation communities. The Chemical and Biological Nonproliferation Program Strategic Plan is also available and provides additional detail on the program's context and goals. The body of the report consists of an overview of the program's philosophy, goals and recent progress in the major program areas. In addition, an appendix is provided with more detailed project summaries that will be of interest to the technical community.

  11. Standard Model with a real singlet scalar and inflation

    SciTech Connect (OSTI)

    Enqvist, Kari; Nurmi, Sami; Tenkanen, Tommi; Tuominen, Kimmo E-mail: sami.nurmi@helsinki.fi E-mail: kimmo.i.tuominen@helsinki.fi

    2014-08-01

    We study the post-inflationary dynamics of the Standard Model Higgs and a real singlet scalar s, coupled together through a renormalizable coupling ?{sub sh}h{sup 2}s{sup 2}, in a Z{sub 2} symmetric model that may explain the observed dark matter abundance and/or the origin of baryon asymmetry. The initial values for the Higgs and s condensates are given by inflationary fluctuations, and we follow their dissipation and relaxation to the low energy vacua. We find that both the lowest order perturbative and the non-perturbative decays are blocked by thermal effects and large background fields and that the condensates decay by two-loop thermal effects. Assuming instant reheating at T=10{sup 16} GeV, the characteristic temperature for the Higgs condensate thermalization is found to be T{sub h} ? 10{sup 14} GeV, whereas s thermalizes typically around T{sub s} ? 10{sup 6} GeV. By that time, the amplitude of the singlet is driven very close to the vacuum value by the expansion of the universe, unless the portal coupling takes a value ?{sub sh}?< 10{sup -7} and the singlet s never thermalizes. With these values of the coupling, it is possible to slowly produce a sizeable fraction of the observed dark matter abundance via singlet condensate fragmentation and thermal Higgs scattering. Physics also below the electroweak scale can therefore be affected by the non-vacuum initial conditions generated by inflation.

  12. Inflation and Dark Energy with a Single Superfield

    E-Print Network [OSTI]

    Linde, Andrei; Scalisi, Marco

    2015-01-01

    We discuss the possibility to construct supergravity models with a single superfield describing inflation as well as the tiny cosmological constant $V \\sim 10^{{-120}}$. One could expect that the simplest way to do it is to study models with a supersymmetric Minkowski vacuum and then slightly uplift them. However, due to the recently proven no-go theorem, such a tiny uplifting cannot be achieved by a small modification of the parameters of the theory. We illustrate this general result by investigation of models with a single chiral superfield recently proposed by Ketov and Terada. We show that the addition of a small constant or a linear term to the superpotential of a model with a stable supersymmetric Minkowski vacuum converts it to an AdS vacuum, which results in a rapid cosmological collapse. One can avoid this problem and uplift a supersymmetric Minkowski vacuum to a dS vacuum with $V_{0}\\sim 10^{-120}$ without violating the no-go theorem by making these extra terms large enough. However, we show that th...

  13. Inflation and Dark Energy with a Single Superfield

    E-Print Network [OSTI]

    Andrei Linde; Diederik Roest; Marco Scalisi

    2015-01-06

    We discuss the possibility to construct supergravity models with a single superfield describing inflation as well as the tiny cosmological constant $V \\sim 10^{{-120}}$. One could expect that the simplest way to do it is to study models with a supersymmetric Minkowski vacuum and then slightly uplift them. However, due to the recently proven no-go theorem, such a tiny uplifting cannot be achieved by a small modification of the parameters of the theory. We illustrate this general result by investigation of models with a single chiral superfield recently proposed by Ketov and Terada. We show that the addition of a small constant or a linear term to the superpotential of a model with a stable supersymmetric Minkowski vacuum converts it to an AdS vacuum, which results in a rapid cosmological collapse. One can avoid this problem and uplift a supersymmetric Minkowski vacuum to a dS vacuum with $V_{0}\\sim 10^{-120}$ without violating the no-go theorem by making these extra terms large enough. However, we show that this leads to a strong supersymmetry breaking in the uplifted vacua.

  14. Power spectrum and non-Gaussianities in anisotropic inflation

    SciTech Connect (OSTI)

    Dey, Anindya; Kovetz, Ely D.; Paban, Sonia E-mail: elykovetz@gmail.com

    2014-06-01

    We study the planar regime of curvature perturbations for single field inflationary models in an axially symmetric Bianchi I background. In a theory with standard scalar field action, the power spectrum for such modes has a pole as the planarity parameter goes to zero. We show that constraints from back reaction lead to a strong lower bound on the planarity parameter for high-momentum planar modes and use this bound to calculate the signal-to-noise ratio of the anisotropic power spectrum in the CMB, which in turn places an upper bound on the Hubble scale during inflation allowed in our model. We find that non-Gaussianities for these planar modes are enhanced for the flattened triangle and the squeezed triangle configurations, but show that the estimated values of the f{sub NL} parameters remain well below the experimental bounds from the CMB for generic planar modes (other, more promising signatures are also discussed). For a standard action, f{sub NL} from the squeezed configuration turns out to be larger compared to that from the flattened triangle configuration in the planar regime. However, in a theory with higher derivative operators, non-Gaussianities from the flattened triangle can become larger than the squeezed configuration in a certain limit of the planarity parameter.

  15. The degeneracy problem in non-canonical inflation

    SciTech Connect (OSTI)

    Easson, Damien A. [Department of Physics and School of Earth and Space Exploration and Beyond Center, Arizona State University, Tempe, AZ 85287-1504 (United States); Powell, Brian A., E-mail: easson@asu.edu, E-mail: brian.powell007@gmail.com [Institute for Defense Analyses, Alexandria, VA 22311 (United States)

    2013-03-01

    While attempting to connect inflationary theories to observational physics, a potential difficulty is the degeneracy problem: a single set of observables maps to a range of different inflaton potentials. Two important classes of models affected by the degeneracy problem are canonical and non-canonical models, the latter marked by the presence of a non-standard kinetic term that generates observables beyond the scalar and tensor two-point functions on CMB scales. The degeneracy problem is manifest when these distinguishing observables go undetected. We quantify the size of the resulting degeneracy in this case by studying the most well-motivated non-canonical theory having Dirac-Born-Infeld Lagrangian. Beyond the scalar and tensor two-point functions on CMB scales, we then consider the possible detection of equilateral non-Gaussianity at Planck-precision and a measurement of primordial gravitational waves from prospective space-based laser interferometers. The former detection breaks the degeneracy with canonical inflation but results in poor reconstruction prospects, while the latter measurement enables a determination of n{sub T} which, while not breaking the degeneracy, can be shown to greatly improve the non-canonical reconstruction.

  16. Nuclear Fusion in the Deuterated cores of inflated hot Jupiters

    E-Print Network [OSTI]

    Ouyed, Rachid

    2015-01-01

    In Ouyed et al. (1998), Deuterium-Deuterium (DD) burning in the deep interior of giant planets (at the core-mantle interface) was proposed as a mechanism to explain their observed heat excess. An issue with such a mechanism is the extreme condition of high interior temperatures (~ 10^5 K) in a concentrated D layer needed to account for the excess heat. In this paper, we show that screened DD fusion in a deuterated core is a more plausible mechanism to explain the excess heat and observed inflated radii of some Jovian exoplanets ("hot Jupiters"). The screening alleviates the extreme temperature constraint and removes the requirement of a stratified D layer, so that DD-fusion is a significant internal energy source (~ 10^(25)-10^(27) erg/s) even within the expected range of core temperature (~ 10^4 K) and density of hot Jupiters. The mechanism is universal, long-lasting (Gigayears), and should be effective as long as the metallicity is not too high and the core has not been significantly eroded away already. Ap...

  17. Recommendations: Draft 2011 Section 999 Annual Plan | Department of Energy

    Energy Savers [EERE]

    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 DeliciousMathematicsEnergyInterested PartiesBuildingBudget ||DepartmentReadoutReview of Lessons7 Annual09

  18. Recommendations: Draft 2013 Annual Plan | Department of Energy

    Energy Savers [EERE]

    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 DeliciousMathematicsEnergyInterested PartiesBuildingBudget ||DepartmentReadoutReview of Lessons7 Annual09Draft

  19. Second Annual Post Competition Accountability Report | Department of Energy

    Energy Savers [EERE]

    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 DeliciousMathematicsEnergyInterestedReplacement-2-AA-1 SECTIONEnergy Scientists AssessSecond Annual Post

  20. Paducah Annual Site Environmental Reports | Department of Energy

    Energy Savers [EERE]

    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 DeliciousMathematicsEnergyInterested PartiesBuilding energy codes havePUBLIC ADMINISTRATION COLORADOPaducah Annual

  1. Recommendations: Draft 2007 Section 999 Annual Plan | Department of Energy

    Energy Savers [EERE]

    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 DeliciousMathematicsEnergyInterested PartiesBuildingBudget ||DepartmentReadoutReview of Lessons7 Annual Plan89017

  2. Recommendations: Draft 2008 Section 999 Annual Plan | Department of Energy

    Energy Savers [EERE]

    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 DeliciousMathematicsEnergyInterested PartiesBuildingBudget ||DepartmentReadoutReview of Lessons7 Annual

  3. Recommendations: Draft 2009 Section 999 Annual Plan | Department of Energy

    Energy Savers [EERE]

    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 DeliciousMathematicsEnergyInterested PartiesBuildingBudget ||DepartmentReadoutReview of Lessons7 Annual09 Section

  4. Fiscal Year 2004 Annual Report

    E-Print Network [OSTI]

    Salvaggio, Carl

    NTID Fiscal Year 2004 Annual Report (Click here to jump to the Table of Contents) #12;#12;-1- FY ................... 17 Assessment Information on Entering Class

  5. Faculty Annual Review Academic Affairs

    E-Print Network [OSTI]

    Jones, Michelle

    .........................................................................................................................................3 2.0 Annual review of probationary faculty (except Fourth-Year Review)..............................................................3 2.1 Fourth-Year Review of probationary faculty

  6. School of Engineering Annual Report

    E-Print Network [OSTI]

    Alpay, S. Pamir

    Activities............................. Civil & Environmental Engineering.......... PROGRAMS Engineering Diversity Program....................................... Environmental EngineeringSchool of Engineering 1 9 9 9 Annual Report #12;University of ConnecticutUniversity of Connecticut

  7. Tanana Chiefs Conference Annual Convention

    Broader source: Energy.gov [DOE]

    The Tanana Chiefs Conference is holding its annual convention to discuss issues in the region, hold elections, and adopt resolutions presented by Tribes.

  8. A minimal sub-Planckian axion inflation model with large tensor-to-scalar ratio

    SciTech Connect (OSTI)

    McDonald, John

    2015-01-01

    We present a minimal axion inflation model which can generate a large tensor-to-scalar ratio while remaining sub-Planckian. The modulus of a complex scalar field ? with a ?|?|{sup 4} potential couples directly to the gauge field of a strongly-coupled sector via a term of the form (|?|/M{sub Pl}){sup m}F F-tilde . This generates a minimum of the potential which is aperiodic in the phase. The resulting inflation model is equivalent to a ?{sup 4/(m+1)} chaotic inflation model. For the natural case of a leading-order portal-like interaction of the form ?{sup †}?F F-tilde , the model is equivalent to a ?{sup 4/3} chaotic inflation model and predicts a tensor-to-scalar ratio r = 16/3N = 0.097 and a scalar spectral index n{sub s} = 1 - 5/3N = 0.970. The value of |?| remains sub-Planckian throughout the observable era of inflation, with |?| ?< 0.01M{sub Pl} for N ?< 60 when ? ? 1.

  9. On the coupled evolution of inflation, wealth and atmospheric concentrations of carbon dioxide

    E-Print Network [OSTI]

    Garrett, Timothy J

    2010-01-01

    In a prior study (Garrett, 2009), a thermodynamically-based economic growth model was introduced that was based on the finding that the rate of consumption of energy by civilization has been related to its historical accumulation of inflation-adjusted Gross World Product (GWP), or its ``wealth'', through a constant value {\\lambda} of 9.7 {\\pm} 0.3 milliwatts per 1990 US dollar. Here, this simple model is extended to describe, first, a thermodynamically-based theory for economic inflation and, second, a prognostic model for the coupled multi-decadal evolution of CO2 concentrations and GWP. Multi-decadal hindcasts of GWP and CO2 concentrations made with this model are shown to be accurate. Applied to coming decades, the model implies that, like a long-term natural disaster, future greenhouse warming will accelerate economic inflation. Such inflation will slow growth of not just inflation-adjusted economic wealth, but also CO2 emission rates because the two are coupled through {\\lambda}. Maintaining atmospheric ...

  10. The Western Water Assessment Annual RISA Report

    E-Print Network [OSTI]

    Neff, Jason

    ;Western Water Assessment 2007 Annual Report 2 Table of Contents I. Areas of FocusThe Western Water Assessment Annual RISA Report Reporting Period: January 2007-December 2007 #12-30 #12;Western Water Assessment 2007 Annual Report 3

  11. Fourth Annual Western Evolutionary Biology Meeting

    E-Print Network [OSTI]

    Rose, Michael R.

    Fourth Annual Western Evolutionary Biology Meeting University of California Presentation of the fourth annual Western Evolutionary Biologist of the Year (WEBEY) Award. 5:00 PM Fourth Annual WEBEY Address, Maureen Stanton, UC Davis 6:00 PM

  12. (Expired) Nationwide Limited Public Interest Waiver for LED Lighting...

    Energy Savers [EERE]

    (Expired) Nationwide Limited Public Interest Waiver for LED Lighting and HVAC Units: February 11, 2010 (Expired) Nationwide Limited Public Interest Waiver for LED Lighting and HVAC...

  13. The Inverse Problem for Derivative Securities of Interest Rate

    E-Print Network [OSTI]

    2008-02-02

    May 26, 2000 ... Market price for risk of interest rate reflects the close relation between risk and yield of securities dependent on interest rate. An inverse problem.

  14. UC Center for Information Technology Research in the Interest...

    Open Energy Info (EERE)

    Center for Information Technology Research in the Interest of Society (CITRIS) Jump to: navigation, search Logo: UC Center for Information Technology Research in the Interest of...

  15. Home Energy Score: Program Update for Interested Stakeholders...

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

    Score: Program Update for Interested Stakeholders Home Energy Score: Program Update for Interested Stakeholders programupdatewebinar7-23-12.pdf More Documents & Publications Home...

  16. National Interest Security Company NISC Formerly Technology Management...

    Open Energy Info (EERE)

    Interest Security Company NISC Formerly Technology Management Services TMS Inc Jump to: navigation, search Name: National Interest Security Company (NISC) (Formerly Technology &...

  17. Updated May 2012 MILITARY ACCESSIONS VITAL TO NATIONAL INTEREST (MAVNI)

    E-Print Network [OSTI]

    Arnold, Jonathan

    Updated May 2012 MILITARY ACCESSIONS VITAL TO NATIONAL INTEREST (MAVNI) RECRUITMENT PILOT are considered to be vital to the national interest. Those holding critical skills ­ physicians, nurses

  18. 2007 TEPP Annual Report

    Office of Environmental Management (EM)

    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 Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirley Ann Jackson About Us ShirleyU.S. DRIVE VehicleNewWidderRulemakings -998U.S.06 Draft2007 Annual

  19. Annual Energy Review 2001

    SciTech Connect (OSTI)

    Seiferlein, Katherine E.

    2002-11-01

    The Annual Energy Review (AER) is a statistical history of energy activities in the United States. It documents trends and milestones in U.S. energy production, trade, storage, pricing, and consumption. Each new year of data that is added to the time series—which now reach into 7 decades—extends the story of how Americans have acquired and used energy. It is a story of continual change as the Nation's economy grew, energy requirements expanded, resource availability shifted, and interdependencies developed among nations.

  20. International energy annual 1995

    SciTech Connect (OSTI)

    1996-12-01

    The International Energy Annual presents information and trends on world energy production and consumption for petroleum, natural gas, coal, and electricity. Production and consumption data are reported in standard units as well as British thermal units (Btu). Trade and reserves are shown for petroleum, natural gas, and coal. Data are provided on crude oil refining capacity and electricity installed capacity by type. Prices are included for selected crude oils and for refined petroleum products in selected countries. Population and Gross Domestic Product data are also provided.

  1. Renewable energy annual 1996

    SciTech Connect (OSTI)

    1997-03-01

    This report presents summary data on renewable energy consumption, the status of each of the primary renewable technologies, a profile of each of the associated industries, an analysis of topical issues related to renewable energy, and information on renewable energy projects worldwide. It is the second in a series of annual reports on renewable energy. The renewable energy resources included in the report are biomass (wood and ethanol); municipal solid waste, including waste-to-energy and landfill gas; geothermal; wind; and solar energy, including solar thermal and photovoltaic. The report also includes various appendices and a glossary.

  2. Annual Energy Review 2010

    SciTech Connect (OSTI)

    2011-10-01

    This twenty-ninth edition of the Annual Energy Review (AER) presents the U.S. Energy Information Administration’s (EIA) most comprehensive look at integrated energy statistics. The summary statistics on the Nation’s energy production, consumption, trade, stocks, and prices cover all major energy commodities and all energy-consuming sectors of the U.S. economy from 1949 through 2010. The AER is EIA’s historical record of energy statistics and, because the coverage spans six decades, the statistics in this report are well-suited to long-term trend analysis.

  3. Annual Environmental Report

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News Publications TraditionalWith PropaneNaturalTestAnAlexAnnual Coal14, 20143Total

  4. NERSC Annual Reports

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass map shines light on77 PAGEMissionStressMoveMuncriefB O N N E V I L LNERSC Annual

  5. Historical Natural Gas Annual

    Gasoline and Diesel Fuel Update (EIA)

    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 Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969CentralWellsMillion Cubic Feet) Havre, MTCitygateYearAnnual .

  6. Required Annual Notices

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMassR&D100 Winners *ReindustrializationEnergyWindNO. DE-SOL-0008418Annual Notices

  7. Annual Reports - SRSCRO

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.Theory of raregovAboutRecovery ActTools to someone by AllocationAnnual Energyreports

  8. 2009 ISCMEM Annual Meeting

    Broader source: Energy.gov (indexed) [DOE]

    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 Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i n c i p a l De p u t y A s s i s t a n t SClean-up ofFourth Annual

  9. How does Inflation Depend Upon the Nature of Fluids Filling Up the Universe in Brane World Scenario

    E-Print Network [OSTI]

    Sudeshna Mukerji; Ritabrata Biswas; Nairwita Mazumder; Subenoy Chakraborty

    2011-04-07

    By constructing different parameters which are able to give us the information about our universe during inflation,(specially at the start and the end of the inflationary universe) a brief idea of brane world inflation is given in this work. What will be the size of the universe at the end of inflation,i.e.,how many times will it grow than today's size is been speculated and analysed thereafter. Different kinds of fluids are taken to be the matter inside the brane. It is observed that in the case of highly positive pressure grower gas like polytropic,the size of the universe at the end of inflation is comparitively smaller. Whereas for negative pressure creators (like chaplygin gas) this size is much bigger. Except thse two cases, inflation has been studied for barotropic fluid and linear redshift parametrization $\\omega(z) = \\omega_{0} + \\omega_{1} z$ too. For them the size of the universe after inflation is much more high. We also have seen that this size does not depend upon the potential energy at the end of the inflation. On the contrary, there is a high impact of the initial potential energy upon the size of inflation.

  10. Inflationary Magnetogenesis in $R^{2}$-Inflation after Planck 2015

    E-Print Network [OSTI]

    Anwar Saleh AlMuhammad

    2015-05-19

    We study the primordial magnetic field generated by the simple model $f^2 FF$ in Starobinsky, $R^2$-inflationary, model. The scale invariant PMF is achieved at relatively high power index of the coupling function, $\\left| \\alpha \\right| \\approx 7.44$. This model does not suffer from the backreaction problem as long as, the rate of inflationary expansion, $H$, is in the order of or less than the upper bound reported by Planck ($\\le 3.6 \\times 10^{-5} M_\\rm{Pl}$) in both de Sitter and power law expansion, which show similar results. We calculate the lower limit of the reheating parameter, $R_\\rm{rad} > 6.888$ in $R^2$-inflation. Based on the upper limit obtained from CMB, we find that the upper limits of magnetic field and reheating energy density as, $\\left(\\rho_{B_\\rm{end}} \\right)_\\rm{CMB} right)_\\rm{CMB} energy density for all possible values of $w _\\rm{reh}$ are respectively constrained as, $T_\\rm{reh} < 4.32 \\times 10^{13} \\rm{GeV}$ and $\\rho_\\rm{reh} < 3.259 \\times 10^{-18} M_\\rm{Pl}^4$ at $n_\\rm{s} \\approx 0.9674$. This value of spectral index is well consistent with Planck, 2015 results. Adopting $T_\\rm{reh}$, enables us to constrain the reheating e-folds number, $N_\\rm{reh}$ on the range $1 < N_\\rm{reh} < 8.3$, for $- 1/3 < w_\\rm{reh} < 1$. By using the scale invariant PMF generated by $f^2 FF$, we find that the upper limit of present magnetic field, $B_0 < 8.058 \\times 10^{-9} \\rm{G}$.

  11. Postdoctoral Research Awards Annual Research Meeting: Brandon...

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

    Brandon Mercado Postdoctoral Research Awards Annual Research Meeting: Brandon Mercado Poster Presentation at 2012 EERE Annual Research Meeting, Postdoctoral Research Awards, from...

  12. Postdoctoral Research Awards Annual Research Meeting: Padmaja...

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

    Padmaja Gunda Postdoctoral Research Awards Annual Research Meeting: Padmaja Gunda Poster Presentation at 2012 EERE Annual Research Meeting, Postdoctoral Research Awards, from the...

  13. Southeastern Power Administration 2012 Annual Report | Department...

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

    Southeastern Power Administration 2012 Annual Report Southeastern Power Administration 2012 Annual Report This report reflects our agency's programs,accomplishments, operational,...

  14. If you are interested in participating in the Imaging and Geospatial Technology Forum (IGTF), I highly recommend that you consider being a Student Assistant or

    E-Print Network [OSTI]

    Mazzotti, Frank

    If you are interested in participating in the Imaging and Geospatial Technology Forum (IGTF), I highly recommend that you consider being a Student Assistant or Volunteer (see email below). I've done 2015 ­ Imaging & Geospatial Technology Forum The NEW ASPRS Annual Conference May 4 ­ 8, 2015 * Tampa

  15. First test of high frequency Gravity Waves from inflation using Advanced LIGO

    SciTech Connect (OSTI)

    Lopez, Alejandro; Freese, Katherine E-mail: ktfreese@umich.edu

    2015-01-01

    Inflation models ending in a first order phase transition produce gravitational waves (GW) via bubble collisions of the true vacuum phase. We demonstrate that these bubble collisions can leave an observable signature in Advanced LIGO, an upcoming ground-based GW experiment. These GW are dependent on two parameters of the inflationary model: ? represents the energy difference between the false vacuum and the true vacuum of the inflaton potential, and ? measures how fast the phase transition ends (? ? the number of e-folds during the actual phase transition). Advanced LIGO will be able to test the validity of single-phase transition models within the parameter space 10{sup 7} GeV?< ?{sup 1/4} ?< 10{sup 10} GeV and 0.19 ?< ? ?< 1. If inflation occurred through a first order phase transition, then Advanced LIGO could be the first to discover high frequency GW from inflation.

  16. Generalized Slow Roll Conditions and the Possibility of Intermediate Scale Inflation in Scalar-Tensor Theory

    E-Print Network [OSTI]

    J. R. Morris

    2001-06-06

    Generalized slow roll conditions and parameters are obtained for a general form of scalar-tensor theory (with no external sources), having arbitrary functions describing a nonminimal gravitational coupling F(\\phi), a Kahler-like kinetic function k(\\phi), and a scalar potential V(\\phi). These results are then used to analyze a simple toy model example of chaotic inflation with a single scalar field \\phi and a standard Higgs potential and a simple gravitational coupling function. In this type of model inflation can occur with inflaton field values at an intermediate scale of roughly 10^{11} GeV when the particle physics symmetry breaking scale is approximately 1 TeV, provided that the theory is realized within the Jordan frame. If the theory is realized in the Einstein frame, however, the intermediate scale inflation does not occur.

  17. Large tensor mode, field range bound and consistency in generalized G-inflation

    E-Print Network [OSTI]

    Kunimitsu, Taro; Watanabe, Yuki; Yokoyama, Jun'ichi

    2015-01-01

    We systematically show that in potential driven generalized G-inflation models, quantum corrections coming from new physics at the strong coupling scale can be avoided, while producing observable tensor modes. The effective action can be approximated by the tree level action, and as a result, these models are internally consistent, despite the fact that we introduced new mass scales below the energy scale of inflation. Although observable tensor modes are produced with sub-strong coupling scale field excursions, this is not an evasion of the Lyth bound, since the models include higher-derivative non-canonical kinetic terms, and effective rescaling of the field would result in super-Planckian field excursions. We argue that the enhanced kinetic term of the inflaton screens the interactions with other fields, keeping the system weakly coupled during inflation.

  18. ANNUAL FIRE SAFETY RESIDENCE HALLS

    E-Print Network [OSTI]

    Fernandez, Eduardo

    1 2013 ANNUAL FIRE SAFETY REPORT FOR RESIDENCE HALLS As Required by the Higher Education Opportunity Act (HEOA) #12;2 INTRODUCTION Contents of this annual fire safety report reflect the requirements outlined in the HEOA, which are included in Florida Atlantic University's (FAU) campus fire safety program

  19. Annual Energy Outlook Retrospective Review

    Reports and Publications (EIA)

    2015-01-01

    The Annual Energy Outlook Retrospective Review provides a yearly comparison between realized energy outcomes and the Reference case projections included in previous Annual Energy Outlooks (AEO) beginning with 1982. This edition of the report adds the AEO 2012 projections and updates the historical data to incorporate the latest data revisions.

  20. ANNUAL REPORT 1998 PHOTOVOLTAICS GROUP

    E-Print Network [OSTI]

    New South Wales, University of

    ANNUAL REPORT 1998 UNSW PHOTOVOLTAICS GROUP ANNUAL REPORT 1998 UNSW PHOTOVOLTAICS GROUP #12;THE UNIVERSITY OF NEW SOUTH WALES THE PHOTOVOLTAICS SPECIAL RESEARCH CENTRE IS A SPECIAL RESEARCH CENTRE OF THE AUSTRALIAN RESEARCH COUNCIL THE KEY CENTRE FOR PHOTOVOLTAIC ENGINEERING IS A KEY CENTRE OF THE AUSTRALIAN

  1. Engineering Faculty's Annual Report 2010

    E-Print Network [OSTI]

    Toronto, University of

    Engineering Faculty's Annual Report 2010: Performance Indicators #12;ii | Table of Contents | Annual Report 2010 | Faculty of Applied Science & Engineering Table of Contents Introduction 2 ­ Message from the Dean ­ 2009­2010 Faculty Leadership ­ Comparison of U of T Engineering with Ontario and Canada

  2. Eighth Annual Risk Management Conference

    E-Print Network [OSTI]

    Chaudhuri, Sanjay

    Eighth Annual Risk Management Conference Risk Management Amidst Global Rebalancing 10 ­ 11 July 2014, Singapore The Risk Management Institute (RMI) at the National University of Singapore invites submissions for its 8th annual conference on risk management in Singapore on 10 and 11 July 2014. We

  3. Data Management Group Annual Report

    E-Print Network [OSTI]

    Toronto, University of

    Data Management Group Annual Report 1999 prepared by: Data Management Group Joint Program APPENDIX A: DATA REQUESTS ..................................... 11 #12;Data Management Group 1999 Annual Report Page 1 of 14 INTRODUCTION The Data Management Group is a research project located at the Joint

  4. Annual Energy Review 2004

    SciTech Connect (OSTI)

    Seiferlein, Katherine E.

    2005-08-01

    The Annual Energy Review (AER) is the Energy Information Administration's (EIA) primary report of annual historical energy statistics. For many series, data begin with the year 1949. Included are data on total energy production, consumption, and trade; overviews of petroleum, natural gas, coal, electricity, nuclear energy, renewable energy, international energy, as well as financial and environment indicators; and data unit conversion tables. Publication of this report is required under Public Law 95–91 (Department of Energy Organization Act), Section 205(c), and is in keeping with responsibilities given to the EIA under Section 205(a)(2), which states: “The Administrator shall be responsible for carrying out a central, comprehensive, and unified energy data and information program which will collect, evaluate, assemble, analyze, and disseminate data and information....” The AER is intended for use by Members of Congress, Federal and State agencies energy analysts, and the general public. EIA welcomes suggestions from readers regarding data series in the AER and in other EIA publications.

  5. Annual Energy Review 1993

    SciTech Connect (OSTI)

    Not Available

    1994-07-14

    This twelfth edition of the Annual Energy Review (AER) presents the Energy Information Administration`s historical energy statistics. For most series, statistics are given for every year from 1949 through 1993. Because coverage spans four and a half decades, the statistics in this report are well-suited to long-term trend analyses. The AER is comprehensive. It covers all major energy activities, including consumption, production, trade, stocks, and prices, for all major energy commodities, including fossil fuels and electricity. The AER also presents Energy Information Administration (EIA) statistics on some renewable energy sources. EIA estimates that its consumption series include about half of the renewable energy used in the United States. For a more complete discussion of EIA`s renewables data, see p. xix, ``Introducing Expanded Coverage of Renewable Energy Data Into the Historical Consumption Series.`` Copies of the 1993 edition of the Annual Energy Review may be obtained by using the order form in the back of this publication. Most of the data in the 1993 edition also are available on personal computer diskette. For more information about the diskettes, see the back of this publication. In addition, the data are available as part of the National Economic, Social, and Environmental Data Bank on a CD-ROM. For more information about the data bank, contact the US Department of Commerce Economics and Statistics Administration, on 202-482-1986.

  6. Annual Energy Review 2005

    SciTech Connect (OSTI)

    Seiferlein, Katherine E.

    2006-07-01

    The Annual Energy Review (AER) is the Energy Information Administration's (EIA) primary report of annual historical energy statistics. For many series, data begin with the year 1949. Included are data on total energy production, consumption, and trade; overviews of petroleum, natural gas, coal, electricity, nuclear energy, renewable energy, international energy, as well as financial and environment indicators; and data unit conversion tables. Publication of this report is required under Public Law 95–91 (Department of Energy Organization Act), Section 205(c), and is in keeping with responsibilities given to the EIA under Section 205(a)(2), which states: “The Administrator shall be responsible for carrying out a central, comprehensive, and unified energy data and information program which will collect, evaluate, assemble, analyze, and disseminate data and information....” The AER is intended for use by Members of Congress, Federal and State agencies, energy analysts, and the general public. EIA welcomes suggestions from readers regarding data series in the AER and in other EIA publications.

  7. Annual Energy Review 2006

    SciTech Connect (OSTI)

    Seiferlein, Katherine E.

    2007-06-01

    The Annual Energy Review (AER) is the Energy Information Administration's (EIA) primary report of annual historical energy statistics. For many series, data begin with the year 1949. Included are data on total energy production, consumption, and trade; overviews of petroleum, natural gas, coal, electricity, nuclear energy, renewable energy, international energy, as well as financial and environment indicators; and data unit conversion tables. Publication of this report is required under Public Law 95–91 (Department of Energy Organization Act), Section 205(c), and is in keeping with responsibilities given to the EIA under Section 205(a)(2), which states: “The Administrator shall be responsible for carrying out a central, comprehensive, and unified energy data and information program which will collect, evaluate, assemble, analyze, and disseminate data and information....” The AER is intended for use by Members of Congress, Federal and State agencies, energy analysts, and the general public. EIA welcomes suggestions from readers regarding data series in the AER and in other EIA publications.

  8. Annual Energy Review 2009

    SciTech Connect (OSTI)

    Fichman, Barbara T.

    2010-08-01

    The Annual Energy Review (AER) is the U.S. Energy Information Administration's (EIA) primary report of annual historical energy statistics. For many series, data begin with the year 1949. Included are statistics on total energy production, consumption, trade, and energy prices; overviews of petroleum, natural gas, coal, electricity, nuclear energy, renewable energy, and international energy; financial and environment indicators; and data unit conversions. Publication of this report is required under Public Law 95–91 (Department of Energy Organization Act), Section 205(c), and is in keeping with responsibilities given to the EIA under Section 205(a)(2), which states: “The Administrator shall be responsible for carrying out a central, comprehensive, and unified energy data and information program which will collect, evaluate, assemble, analyze, and disseminate data and information....” The AER is intended for use by Members of Congress, Federal and State agencies, energy analysts, and the general public. EIA welcomes suggestions from readers regarding the content of the AER and other EIA publications.

  9. Electric power annual 1992

    SciTech Connect (OSTI)

    Not Available

    1994-01-06

    The Electric Power Annual presents a summary of electric utility statistics at national, regional and State levels. The objective of the publication is to provide industry decisionmakers, government policymakers, analysts and the general public with historical data that may be used in understanding US electricity markets. The Electric Power Annual is prepared by the Survey Management Division; Office of Coal, Nuclear, Electric and Alternate Fuels; Energy Information Administration (EIA); US Department of Energy. ``The US Electric Power Industry at a Glance`` section presents a profile of the electric power industry ownership and performance, and a review of key statistics for the year. Subsequent sections present data on generating capability, including proposed capability additions; net generation; fossil-fuel statistics; retail sales; revenue; financial statistics; environmental statistics; electric power transactions; demand-side management; and nonutility power producers. In addition, the appendices provide supplemental data on major disturbances and unusual occurrences in US electricity power systems. Each section contains related text and tables and refers the reader to the appropriate publication that contains more detailed data on the subject matter. Monetary values in this publication are expressed in nominal terms.

  10. Integration of Renewables and Efficiency: Leveraging Interest and Funding

    Broader source: Energy.gov [DOE]

    This webinar covered the integration of energy efficiency and renewable energy and receiving interest or funding.

  11. An Evaluation of Volumetric Interest Points University of Cambridge

    E-Print Network [OSTI]

    Martin, Ralph R.

    An Evaluation of Volumetric Interest Points Tsz-Ho Yu University of Cambridge Cambridge, UK thy23 the first performance eval- uation of interest points on scalar volumetric data. Such data encodes 3D shape detectors of interest points in volumetric data, in terms of repeatability, number and nature of interest

  12. Anisotropic Power-law Inflation: A counter example to the cosmic no-hair conjecture

    E-Print Network [OSTI]

    Jiro Soda

    2014-10-31

    It is widely believed that anisotropy in the expansion of the universe will decay exponentially fast during inflation. This is often referred to as the cosmic no-hair conjecture. However, we find a counter example to the cosmic no-hair conjecture in the context of supergravity. As a demonstration, we present an exact anisotropic power-law inflationary solution which is an attractor in the phase space. We emphasize that anisotropic inflation is quite generic in the presence of anisotropic sources which couple with an inflaton.

  13. On the possibility of blue tensor spectrum within single field inflation

    E-Print Network [OSTI]

    Yi-Fu Cai; Jinn-Ouk Gong; Shi Pi; Emmanuel N. Saridakis; Shang-Yu Wu

    2014-12-23

    We present a series of theoretical constraints on the potentially viable inflation models that might yield a blue spectrum for primordial tensor perturbations. By performing a detailed dynamical analysis we show that, while there exists such possibility, the corresponding phase space is strongly bounded. Our result implies that, in order to achieve a blue tilt for inflationary tensor perturbations, one may either construct a non-canonical inflation model delicately, or study the generation of primordial tensor modes beyond the standard scenario of single slow-roll field.

  14. Sustainability of multi-field inflation and bound on string scale

    E-Print Network [OSTI]

    Jinn-Ouk Gong

    2009-02-11

    We study the effects of the interaction terms between the inflaton fields on the inflationary dynamics in multi-field models. With power law type potential and interactions, the total number of e-folds may get considerably reduced and can lead to unacceptably short period of inflation. Also we point out that this can place a bound on the characteristic scale of the underlying theory such as string theory. Using a simple multi-field chaotic inflation model from string theory, the string scale is constrained to be larger than the scale of grand unified theory.

  15. Power spectrum and anisotropy of super inflation in loop quantum cosmology

    E-Print Network [OSTI]

    Xiao-Jun Yue; Jian-Yang Zhu

    2013-03-25

    We investigate the scalar mode of perturbation of super inflation in the version of loop quantum cosmology in which the gauge invariant holonomy corrections are considered. Given a background solution, we calculate the power spectrum of the perturbation in the classical and LQC conditions. Then we compute the anisotropy originated from the perturbation. It is found that in the presence of the gauge invariant holonomy corrections the power spectrum is exponentially blue and the anisotropy also grows exponentially in the epoch of super inflation.

  16. New Higgs Inflation in a No-Scale Supersymmetric SU(5) GUT

    E-Print Network [OSTI]

    John Ellis; Hong-Jian He; Zhong-Zhi Xianyu

    2014-12-23

    Higgs inflation is attractive because it identifies the inflaton with the electroweak Higgs boson. In this work, we construct a new class of supersymmetric Higgs inflationary models in the no-scale supergravity with an SU(5) GUT group. Extending the no-scale Kahler potential and SU(5) GUT superpotential, we derive a generic potential for Higgs inflation that includes the quadratic monomial potential and a Starobinsky-type potential as special limits. This type of models can accommodate a wide range of the tensor-to-scalar ratio $r = O(10^{-3}-10^{-1})$, as well as a scalar spectral index $n_s \\sim 0.96$.

  17. Boom and Bust Inflation: a Graceful Exit via Compact Extra Dimensions

    E-Print Network [OSTI]

    Adam R. Brown

    2008-07-03

    A model of inflation is proposed in which compact extra dimensions allow a graceful exit without recourse to flat potentials or super-Planckian field values. Though bubbles of true vacuum are too sparse to uniformly reheat the Universe by colliding with each other, a compact dimension enables a single bubble to uniformly reheat by colliding with itself. This mechanism, which generates an approximately scale invariant perturbation spectrum, requires that inflation be driven by a bulk field, that vacuum decay be slow, and that the extra dimension be at least a hundred times larger than the false vacuum Hubble length.

  18. The Flux-Scaling Scenario: De Sitter Uplift and Axion Inflation

    E-Print Network [OSTI]

    Blumenhagen, Ralph; Font, Anamaria; Herschmann, Daniela; Sun, Rui

    2015-01-01

    Non-geometric flux-scaling vacua provide promising starting points to realize axion monodromy inflation via the F-term scalar potential. We show that these vacua can be uplifted to Minkowski and de Sitter by adding an anti D3-brane or a D-term containing geometric and non-geometric fluxes. These uplifted non-supersymmetric models are analyzed with respect to their potential to realize axion monodromy inflation self-consistently. Admitting rational values of the fluxes, we construct examples with the required hierarchy of mass scales.

  19. The Flux-Scaling Scenario: De Sitter Uplift and Axion Inflation

    E-Print Network [OSTI]

    Ralph Blumenhagen; Cesar Damian; Anamaria Font; Daniela Herschmann; Rui Sun

    2015-10-06

    Non-geometric flux-scaling vacua provide promising starting points to realize axion monodromy inflation via the F-term scalar potential. We show that these vacua can be uplifted to Minkowski and de Sitter by adding an anti D3-brane or a D-term containing geometric and non-geometric fluxes. These uplifted non-supersymmetric models are analyzed with respect to their potential to realize axion monodromy inflation self-consistently. Admitting rational values of the fluxes, we construct examples with the required hierarchy of mass scales.

  20. 2011 USGS Annual Ethics Training Ethics training is being provided this year in document format so that certain USGS-specific

    E-Print Network [OSTI]

    INTERESTS CERTIFICATION As part of their entry onto duty process, all USGS employees must sign1 2011 USGS Annual Ethics Training Ethics training is being provided this year in document format@usgs.gov In accordance with Office of Government (OGE) regulations, all annual ethics training must include the 14

  1. Annual Report and Accounts

    E-Print Network [OSTI]

    woodland planting has remained a priority. In support of this, the Cabinet Secretary for Rural Affairs sectors as well as those with an interest in conservation, communities and wider land use ­ and FCS with local communities with the National Forest Land Scheme being extended to allow communities to lease

  2. PRB Coal Users' Group enjoys growing interest in its concerns

    SciTech Connect (OSTI)

    Rahm, R.

    2008-07-15

    A review is given of some of the topics discussed at the PRB Coal Users' Group annual meeting, including combustion dusts and a new session on conveyor belts. 7 figs.

  3. Uranium industry annual 1996

    SciTech Connect (OSTI)

    1997-04-01

    The Uranium Industry Annual 1996 (UIA 1996) provides current statistical data on the US uranium industry`s activities relating to uranium raw materials and uranium marketing. The UIA 1996 is prepared for use by the Congress, Federal and State agencies, the uranium and nuclear electric utility industries, and the public. Data on uranium raw materials activities for 1987 through 1996 including exploration activities and expenditures, EIA-estimated reserves, mine production of uranium, production of uranium concentrate, and industry employment are presented in Chapter 1. Data on uranium marketing activities for 1994 through 2006, including purchases of uranium and enrichment services, enrichment feed deliveries, uranium fuel assemblies, filled and unfilled market requirements, uranium imports and exports, and uranium inventories are shown in Chapter 2. A feature article, The Role of Thorium in Nuclear Energy, is included. 24 figs., 56 tabs.

  4. Annual energy review 1994

    SciTech Connect (OSTI)

    1995-07-01

    This 13th edition presents the Energy Information Administration`s historical energy statistics. For most series, statistics are given for every year from 1949 through 1994; thus, this report is well-suited to long-term trend analyses. It covers all major energy activities, including consumption, production, trade, stocks, and prices for all major energy commodities, including fossil fuels and electricity. Statistics on renewable energy sources are also included: this year, for the first time, usage of renewables by other consumers as well as by electric utilities is included. Also new is a two-part, comprehensive presentation of data on petroleum products supplied by sector for 1949 through 1994. Data from electric utilities and nonutilities are integrated as ``electric power industry`` data; nonutility power gross generation are presented for the first time. One section presents international statistics (for more detail see EIA`s International Energy Annual).

  5. Uranium Industry Annual, 1992

    SciTech Connect (OSTI)

    Not Available

    1993-10-28

    The Uranium Industry Annual provides current statistical data on the US uranium industry for the Congress, Federal and State agencies, the uranium and electric utility industries, and the public. The feature article, ``Decommissioning of US Conventional Uranium Production Centers,`` is included. Data on uranium raw materials activities including exploration activities and expenditures, resources and reserves, mine production of uranium, production of uranium concentrate, and industry employment are presented in Chapter 1. Data on uranium marketing activities including domestic uranium purchases, commitments by utilities, procurement arrangements, uranium imports under purchase contracts and exports, deliveries to enrichment suppliers, inventories, secondary market activities, utility market requirements, and uranium for sale by domestic suppliers are presented in Chapter 2.

  6. Osmoregulation in Methanogens (and Other Interesting Organisms)

    SciTech Connect (OSTI)

    Roberts, Mary Fedarko [Boston College, Chestnut Hill, MA (United States)

    2014-12-03

    Our research has been aimed at (i) identifying, (ii) determining mode of regulation, and (iii) understanding how different classes of compatible solutes (also termed osmolytes) affect macromolecular stability in response to osmotic and thermal stress. For solutes we have identified (e.g., di-inositol-1,1’-phosphate (DIP)), we used NMR to elucidate biosynthetic pathways and then cloned suspected enzymes in the pathway to explore how they are regulated. Compatible solutes are thought to protect proteins from thermal and osmotic stresses by being excluded from the surface, allowing critical water molecules to interact with the protein. This implies there are no specific binding interactions between osmolytes and proteins. However, we and others have often observed very specific solute effects for proteins that suggest a more direct interaction between solute and protein is likely can occur. Measuring such a weak interaction is extremely difficult. We have developed a solution NMR method, high-resolution field cycling relaxometry, that can measure spin-lattice relaxation rates as a function of magnetic field from 11.7 (the field of a 500 MHz spectrometer) to 0.003 T. The methodology is ideal for nuclei in small molecules with moderately long relaxation times at high fields – phosphate groups (31P), enriched carbonyls (13C), or methyl groups (1H). The protein of interest is spin-labeled to introduce a large dipole on it that will dominate the relaxation of nuclei on any small molecules that bind transiently. The key is to measure relaxation below 1-2 T (and extract nuclei-spin label distances in the bound complex) where the small molecule relaxation will be dominated by dipolar mechanisms with a correlation time indicative of the large protein complex. Our explorations of an inositol monophosphatase (the last step in DIP generation) localized four discrete binding sides for the thermoprotectant ?-glutamate. This is a novel approach, and while the work did not fully explain how this solute protected the IMPase from thermal denaturation, it did showcase a new and exciting method to monitor weak binding in biological systems.

  7. Weather, construction inflation could squeeze North American pipelines

    SciTech Connect (OSTI)

    True, W.R.

    1998-08-31

    Major North American interstate and interprovincial pipeline companies appear headed for a squeeze near-term: 1997 earnings from operations were down for the second straight year even as the companies expected new construction to begin this year or later to cost more. The effects of warmer-than-normal weather during 1997 in North America made a showing in annual reports filed by US regulated interstate oil and gas pipeline companies with the US Federal Energy Regulatory Commission (FERC). This paper contains data on the following: pipeline revenues, incomes--1997; North American pipeline costs; North American pipeline costs (estimated vs. actual); North American compressor construction costs; US compressor costs (estimated vs. actual); US interstate mileage; investment in liquids pipelines; 10 years of land construction costs; top 10 interstate liquids lines; top 10 interstate gas lines; liquids pipeline companies; and gas pipeline companies.

  8. 2012 Annual Report Research Reactor Infrastructure Program

    SciTech Connect (OSTI)

    Douglas Morrell

    2012-11-01

    The content of this report is the 2012 Annual Report for the Research Reactor Infrastructure Program.

  9. 1994 MCAP annual report

    SciTech Connect (OSTI)

    Harmony, S.C.; Boyack, B.E.

    1995-04-01

    VELCOR is an integrated, engineering-level computer code that models the progression of severe accidents in light water reactor (LWR) nuclear power plants. The entire spectrum of severe accident phenomena, including reactor coolant system and containment thermal-hydraulic response, core heatup, degradation and relocation, and fission product release and transport is treated in MELCOR in a unified framework for both boiling water reactors (BWRs) and pressurized water reactors (PWRs). Its current uses include the estimation of severe accident source terms and their sensitivities and uncertainties in a variety of applications. Independent assessment efforts have been successfully completed by the US and international MELCOR user communities. Most of these independent assessment efforts have been conducted to support the needs and fulfill the requirements of the individual user organizations. The resources required to perform an extensive set of model and integral code assessments are large. A prudent approach to fostering code development and maturation is to coordinate the individual assessment efforts of the MELCOR user community. While retaining individual control over assessment resources, each organization using the MELCOR code could work with the other users to broaden assessment coverage and minimize duplication. In recognition of these considerations, the US Nuclear Regulatory Commission (US NRC) has initiated the MELCOR Cooperative Assessment Program (MCAP), a vehicle for coordinating and standardizing the assessment practices of the various MELCOR users. In addition, the user community will have a forum to better communicate lessons learned regarding MELCOR applications, capabilities, and user guidelines and limitations and to provide a user community perspective on code development needs and priorities. This second Annual Report builds on the foundation laid with the first Annual Report.

  10. 12010/2011 Annual Report University of Alberta Museums Annual Report,

    E-Print Network [OSTI]

    Machel, Hans

    12010/2011 Annual Report University of Alberta Museums Annual Report, including the report of the University of Alberta Museums Policy and Planning Committee ANNUAL REPORT July 1, 2009 to June 30, 2010 Annual Report July 1, 2010 to June 30, 2011 University of Alberta Museums Annual Report, including

  11. Trajectories with suppressed tensor-to-scalar ratio in Aligned Natural Inflation

    E-Print Network [OSTI]

    Marco Peloso; Caner Unal

    2015-04-10

    In Aligned Natural Inflation, an alignment between different potential terms produces an inflaton excursion greater than the axion scales in the potential. We show that, starting from a general potential of two axions with two aligned potential terms, the effective theory for the resulting light direction is characterized by four parameters: an effective potential scale, an effective axion constant, and two extra parameters (related to ratios of the axion scales and the potential scales in the $2-$field theory). For all choices of these extra parameters, the model can support inflation along valleys (in the $2-$field space) that end in minima of the potential. This leads to a phenomenology similar to that of single field Natural Inflation. For a significant range of the extra two parameters, the model possesses also higher altitude inflationary trajectories passing through saddle points of the $2-$field potential, and disconnected from any minimum. These plateaus end when the heavier direction becomes unstable, and therefore all of inflation takes place close to the saddle point, where - due to the higher altitude - the potential is flatter (smaller $\\epsilon$ parameter). As a consequence, a tensor-to-scalar ratio $r = {\\rm O } \\left( 10^{-4} - 10^{-2} \\right)$ can be easily achieved in the allowed $n_s$ region, well within the latest $1 \\sigma$ CMB contours.

  12. Fluid transport in branched structures with temporary closures: A model for quasistatic lung inflation

    E-Print Network [OSTI]

    Buldyrev, Sergey

    Fluid transport in branched structures with temporary closures: A model for quasistatic lung a model system relevant to the inflation of a mammalian lung, an asymmetric bifurcating structure description of the underlying branching structure of the lung, by analyzing experimental pressure-volume data

  13. Physica A 357 (2005) 1826 Crackles and instabilities during lung inflation

    E-Print Network [OSTI]

    Stanley, H. Eugene

    2005-01-01

    Physica A 357 (2005) 18­26 Crackles and instabilities during lung inflation Adriano M. Alencara, called the ``active surface''. We define the active surface of the lung as the set of airway segments and open regions in a collapsed lung. To study the active surface and the time interval between consecutive

  14. A smooth landscape: ending saddle point inflation requires features to be shallow

    SciTech Connect (OSTI)

    Battefeld, Diana; Battefeld, Thorsten E-mail: tbattefe@astro.physik.uni-goettingen.de

    2013-07-01

    We consider inflation driven near a saddle point in a higher dimensional field space, which is the most likely type of slow roll inflation on the string theoretical landscape; anthropic arguments need to be invoked in order to find a sufficiently flat region. To give all inflatons large masses after inflation and yield a small but positive cosmological constant, the trajectory in field space needs to terminate in a hole on the inflationary plateau, introducing a curved end-of-inflation hypersurface. We compute non-Gaussianities (bi- and tri-spectrum) caused by this curved hyper-surface and find a negative, potentially large, local non-linearity parameter. To be consistent with current observational bounds, the hole needs to be shallow, i.e. considerably wider than deep in natural units. To avoid singling out our vacuum as special (i.e. more special than a positive cosmological constant entails), we deduce that all features on field space should be similarly shallow, severely limiting the type of landscapes one may use for inflationary model building. We justify the use of a truncated Fourier series with random coefficients, which are suppressed the higher the frequency, to model such a smooth landscape by a random potential, as is often done in the literature without a good a priory reason.

  15. Inflation driven by scalar field with non-minimal kinetic coupling with Higgs and quadratic potentials

    SciTech Connect (OSTI)

    Granda, L.N.

    2011-04-01

    We study a scalar field with non-minimal kinetic coupling to itself and to the curvature. The slow rolling conditions allowing an inflationary background have been found. The quadratic and Higgs type potentials have been considered, and the corresponding values for the scalar fields at the end of inflation allows to recover the connection with particle physics.

  16. Cosmic inflation, deceleration, acceleration, dark matter, and dark `energy' in one coherent package

    E-Print Network [OSTI]

    Ellis, Homer

    Cosmic inflation, deceleration, acceleration, dark matter, and dark `energy' in one coherent to (mis)represent a uniform negative net mass density of gravitationally attractive and gravitationally, baryonic particles of primordial matter and as the continuously created, invisible particles of the `dark

  17. Numerical Simulation of Inflatable Membrane Structures Ramesh Kolar, Craig Whittinghill, Brij Agrawal

    E-Print Network [OSTI]

    structures being considered increasingly for building large space structures. However, large inflatable in the performance may be reduced by active and passive control of the shape of the antennas by using appropriate sensors. In this context, piezoelectric films are used for the active and passive control. In this paper

  18. ITCN 49th Annual Convention

    Broader source: Energy.gov [DOE]

    The Inter-Tribal Council of Nevada, Inc. will be hosting its 49th Annual Convention, themed "Making a Difference for Nevada Tribes," December 8-11, 2014 at John Ascuaga’s Nugget in Sparks, Nevada.

  19. The Annual Growth In Plants

    E-Print Network [OSTI]

    Courtright, J. E.

    1903-01-01

    KU ScholarWorks | The University of Kansas Pre-1923 Dissertations and Theses Collection The Annual Growth In Plants 1903 by J. E. Courtright This work was digitized by the Scholarly Communications program staff in the KU Libraries’ Center...

  20. Data Management Group Annual Report

    E-Print Network [OSTI]

    Toronto, University of

    Data Management Group Annual Report 2000 prepared by: Data Management Group Joint Program PROCESSING ...................................................2 Text Based Data Retrieval System `drs'.................................2 Internet Browser Data Retrieval System (iDRS).....................3 Complex Data Requests

  1. Data Management Group Annual Report

    E-Print Network [OSTI]

    Toronto, University of

    iv Data Management Group Annual Report 2003 City of Hamilton City of Toronto GO Transit Regional of York Toronto Transit Commission The Data Management Group is a research program located ........................................................................................................ 3 Text-based Data Retrieval System `drs

  2. Data Management Group Annual Report

    E-Print Network [OSTI]

    Toronto, University of

    Data Management Group Annual Report 2001 prepared by: Data Management Group Joint Program..............................................................................2 Text Based Data Retrieval System `drs' ..........................................................2 Internet Browser Data Retrieval System (iDRS)..............................................3 Complex Data

  3. Data Management Group Annual Report

    E-Print Network [OSTI]

    Toronto, University of

    Data Management Group Annual Report 2002 prepared by: Data Management Group Joint Program Based Data Retrieval System `drs' ............................................... 3 Internet Browser Data Retrieval System (iDRS) .................................. 4 Complex Data Requests

  4. LLNL NESHAPs 2004 Annual Report

    SciTech Connect (OSTI)

    Harrach, R; Gallegos, G; Peterson, R; Wilson, K; Harrach, R J; Gallegos, G M; Peterson, S R; Wilson, K R

    2005-06-27

    This annual report is prepared pursuant to the National Emission Standards for Hazardous Air Pollutants (NESHAPs; Title 40 Code of Federal Regulations [CFR] Part 61, Subpart H). Subpart H governs radionuclide emissions to air from Department of Energy (DOE) facilities.

  5. Public Interest Energy Research (PIER) Program FINAL PROJECT REPORT

    E-Print Network [OSTI]

    Public Interest Energy Research (PIER) Program FINAL PROJECT REPORT DESIGN AND DEVELOPMENT Energy Efficiency Research Office Laurie ten Hope Deputy Director RESEARCH AND DEVELOPMENT DIVISION Interest Energy Research Program, Sol Focus, and the United Technologies Research Center). Authors

  6. Public Interest Energy Research (PIER) Program FINAL PROJECT REPORT

    E-Print Network [OSTI]

    Public Interest Energy Research (PIER) Program FINAL PROJECT REPORT ADVANCED DISTRIBUTED SENSOR David Chambers Contract Manager David Chambers Project Manager Mike Gravely Office Manager Energy in this report. #12;PREFACE The California Energy Commission Public Interest Energy Research (PIER) Program

  7. Waste Isolation Pilot Plant Attracts World Interest | Department...

    Office of Environmental Management (EM)

    Isolation Pilot Plant Attracts World Interest Waste Isolation Pilot Plant Attracts World Interest June 26, 2013 - 12:00pm Addthis Lights, Camera, Action In May 2013, an INDIGO...

  8. Sources of information utilized by California agricultural interest groups 

    E-Print Network [OSTI]

    Noble, Elisa Lynn

    2006-10-30

    Existing interest group theory describes legislative decision-making as a communication process whereby interest groups research information on issues, combine this information with constituent opinions, and present the resulting information...

  9. Waste Isolation Pilot Plant Attracts World Interest | Department...

    Office of Environmental Management (EM)

    Waste Isolation Pilot Plant Attracts World Interest Waste Isolation Pilot Plant Attracts World Interest June 26, 2013 - 12:00pm Addthis Lights, Camera, Action In May 2013, an...

  10. Revised 10/31/14 INTERESTED IN BIOENGINEERING?

    E-Print Network [OSTI]

    Reich, Norbert O.

    Revised 10/31/14 INTERESTED IN BIOENGINEERING? The CCS Biology this major, enrolled students who are interested in Bioengineering can, under the guidance of a faculty advisor with expertise in bioengineering, identify courses

  11. School of Engineering | University of Connecticut Annual Report School of Engineering Annual Report 1

    E-Print Network [OSTI]

    Alpay, S. Pamir

    2000 2001 School of Engineering | University of Connecticut Annual Report #12;School of Engineering Annual Report 1 University of ConnecticutUniversity of Connecticut School of Engineering Annual Report

  12. Interest Rate Clustering in UK Financial Services Markets

    E-Print Network [OSTI]

    Feigon, Brooke

    clustering in retail markets, through an examination of how interest rates cluster in two UK financial services markets. It is proposed that price or interest rate clustering forms in retail markets as firms1 Interest Rate Clustering in UK Financial Services Markets by John K. Ashton Norwich Business

  13. SALK INSTITUTE FOR BIOLOGICAL STUDIES Investigator Conflict of Interest Policy

    E-Print Network [OSTI]

    Bellugi, Ursula

    - 1 - SALK INSTITUTE FOR BIOLOGICAL STUDIES Investigator Conflict of Interest Policy TABLE OF CONTENTS Section 1- Applicability: Who Must Comply with the Investigator Conflict of Interest Policy Section 2- Definitions Section 3- Purpose of the Investigator Conflict of Interest Policy Section 4

  14. Annual Site Environmental Reports (ASER) | Department of Energy

    Office of Environmental Management (EM)

    Environment Annual Site Environmental Reports (ASER) Annual Site Environmental Reports (ASER) Annual Site Environmental Reports (ASERs) are required by DOE O 231.1B. The ASERs...

  15. Postdoctoral Research Awards Annual Research Meeting: Jared Clark...

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

    Postdoctoral Research Awards Annual Research Meeting: Jared Clark Postdoctoral Research Awards Annual Research Meeting: Jared Clark Poster Presentation at the 2012 EERE Annual...

  16. 2010 Annual Planning Summary for Stanford Linear Accelerator...

    Energy Savers [EERE]

    0 Annual Planning Summary for Stanford Linear Accelerator Center Site Office (SLAC) 2010 Annual Planning Summary for Stanford Linear Accelerator Center Site Office (SLAC) Annual...

  17. Vehicle Technologies Office: 2012 Advanced Combustion R&D Annual...

    Energy Savers [EERE]

    Vehicle Technologies Office: 2012 Advanced Combustion R&D Annual Progress Report Vehicle Technologies Office: 2012 Advanced Combustion R&D Annual Progress Report Annual report on...

  18. Annual Site Environmental Reports (ASER) | Department of Energy

    Office of Environmental Management (EM)

    Annual Site Environmental Reports (ASER) Annual Site Environmental Reports (ASER) Annual Site Environmental Reports (ASERs) are required by DOE O 231.1B. The ASERs provide...

  19. C:\\ANNUAL\\Vol2chps.v8\\ANNUAL2.VP

    U.S. Energy Information Administration (EIA) Indexed Site

    168 Energy Information Administration Historical Natural Gas Annual 1930 Through 2000 Energy Information Administration Historical Natural Gas Annual 1930 Through 2000 Energy...

  20. Annual Energy Review 2000

    SciTech Connect (OSTI)

    Seiferlein, Katherine E.

    2001-08-01

    The Annual Energy Review (AER) presents the Energy Information Administration’s historical energy statistics. For many series, statistics are given for every year from 1949 through 2000. The statistics, expressed in either physical units or British thermal units, cover all major energy activities, including consumption, production, trade, stocks, and prices, for all major energy commodities, including fossil fuels, electricity, and renewable energy sources. Publication of this report is required under Public Law 95–91 (Department of Energy Organization Act), Section 205(c), and is in keeping with responsibilities given to the Energy Information Administration under Section 205(a)(2), which states: “The Administrator shall be responsible for carrying out a central, comprehensive, and unified energy data and information program which will collect, evaluate, assemble, analyze, and disseminate data and information....” The AER is intended for use by Members of Congress, Federal and State agencies, energy analysts, and the general public. EIA welcomes suggestions from readers regarding data series in the AER and in other EIA publications.

  1. Annual Energy Review 1997

    SciTech Connect (OSTI)

    Seiferlein, Katherine E.

    1998-07-01

    The Annual Energy Review (AER) presents the Energy Information Administration’s historical energy statistics. For many series, statistics are given for every year from 1949 through 1997. The statistics, expressed in either physical units or British thermal units, cover all major energy activities, including consumption, production, trade, stocks, and prices, for all major energy commodities, including fossil fuels, electricity, and renewable energy sources. Publication of this report is in keeping with responsibilities given to the Energy Information Administration (EIA) in Public Law 95–91 (Department of Energy Organization Act), which states, in part, in Section 205(a)(2) that: “The Administrator shall be responsible for carrying out a central, comprehensive, and unified energy data and information program which will collect, evaluate, assemble, analyze, and disseminate data and information....” The AER is intended for use by Members of Congress, Federal and State agencies, energy analysts, and the general public. EIA welcomes suggestions from readers regarding data series in the AER and in other EIA publications.

  2. 2007 LDRD ANNUAL REPORT

    SciTech Connect (OSTI)

    French, T

    2008-12-16

    I am pleased to present the fiscal year 2007 Laboratory Directed Research and Development (LDRD) annual report. This represents the first year that SRNL has been eligible for LDRD participation and our results to date demonstrate we are off to an excellent start. SRNL became a National Laboratory in 2004, and was designated the 'Corporate Laboratory' for the DOE Office of Environmental Management (EM) in 2006. As you will see, we have made great progress since these designations. The LDRD program is one of the tools SRNL is using to enable achievement of our strategic goals for the DOE. The LDRD program allows the laboratory to blend a strong basic science component into our applied technical portfolio. This blending of science with applied technology provides opportunities for our scientists to strengthen our capabilities and delivery. The LDRD program is vital to help SRNL attract and retain leading scientists and engineers who will help build SRNL's future and achieve DOE mission objectives. This program has stimulated our research staff creativity, while realizing benefits from their participation. This investment will yield long term dividends to the DOE in its Environmental Management, Energy, and National Security missions.

  3. Apparatus and method for mapping an area of interest

    DOE Patents [OSTI]

    Staab, Torsten A. (Los Alamos, NM) Cohen, Daniel L. (Ithaca, NY); Feller, Samuel (Fairfax, VA)

    2009-12-01

    An apparatus and method are provided for mapping an area of interest using polar coordinates or Cartesian coordinates. The apparatus includes a range finder, an azimuth angle measuring device to provide a heading and an inclinometer to provide an angle of inclination of the range finder as it relates to primary reference points and points of interest. A computer is provided to receive signals from the range finder, inclinometer and azimuth angle measurer to record location data and calculate relative locations between one or more points of interest and one or more primary reference points. The method includes mapping of an area of interest to locate points of interest relative to one or more primary reference points and to store the information in the desired manner. The device may optionally also include an illuminator which can be utilized to paint the area of interest to indicate both points of interest and primary points of reference during and/or after data acquisition.

  4. Generation of Gravitational Waves and Scalar Perturbations in Inflation with Effective $?$-term and T/S Story

    E-Print Network [OSTI]

    V. N. Lukash; E. V. Mikheeva

    1998-03-06

    We argue that gravitational wave contribution to the cosmic microwave background anisotropy at angular scale $\\sim 10^0$ may exceed 50% for some models of hybrid inflation producing standard cosmology with the density perturbation slope $n \\simeq 1$.

  5. Annual energy review 2003

    SciTech Connect (OSTI)

    Seiferlein, Katherin E.

    2004-09-30

    The Annual Energy Review 2003 is a statistical history of energy activities in the United States in modern times. Data are presented for all major forms of energy by production (extraction of energy from the earth, water, and other parts of the environment), consumption by end-user sector, trade with other nations, storage changes, and pricing. Much of the data provided covers the fossil fuels—coal, petroleum, and natural gas. Fossil fuels are nature’s batteries; they have stored the sun’s energy over millennia past. It is primarily that captured energy that we are drawing on today to fuel the activities of the modern economy. Data in this report measure the extraordinary expansion of our use of fossil fuels from 29 quadrillion British thermal units (Btu) in 1949 to 84 quadrillion Btu in 2003. In recent years, fossil fuels accounted for 86 percent of all energy consumed in the United States. This report also records the development of an entirely new energy industry—the nuclear electric power industry. The industry got its start in this country in 1957 when the Shippingport, Pennsylvania, nuclear electric power plant came on line. Since that time, the industry has grown to account for 20 percent of our electrical output and 8 percent of all energy used in the country. Renewable energy is a third major category of energy reported in this volume. Unlike fossil fuels, which are finite in supply, renewable energy is essentially inexhaustible because it can be replenished. Types of energy covered in the renewable category include conventional hydroelectric power, which is power derived from falling water; wood; waste; alcohol fuels; geothermal; solar; and wind. Together, these forms of energy accounted for about 6 percent of all U.S. energy consumption in recent years.

  6. Annual energy review 1997

    SciTech Connect (OSTI)

    1998-07-01

    The Annual Energy Review (AER) is a historical data report that tells many stories. It describes, in numbers, the changes that have occurred in US energy markets since the midpoint of the 20th century. In many cases, those markets differ vastly from those of a half-century ago. By studying the graphs and data tables presented in this report, readers can learn about past energy supply and usage in the United States and gain an understanding of the issues in energy and the environment now before use. While most of this year`s report content is similar to last year`s, there are some noteworthy developments. Table 1.1 has been restructured into more summarized groupings -- fossil fuels, nuclear electric power, and renewable energy -- to aid analysts in their examination of the basic trends in those broad categories. Readers` attention is also directed to the electricity section, where considerable reformatting of the tables and graphs has been carried out to help clarify past and recent trends in the electric power industry as it enters a period of radical restructuring. Table 9.1, which summarizes US nuclear generating units, has been redeveloped to cover the entire history of the industry in this country and to provide categories relevant in assessing the future of the industry, such as the numbers of ordered generating units that have been canceled and those that were built and later shut down. In general, the AER emphasizes domestic energy statistics. Sections 1 through 10 and Section 12 are devoted mostly to US data; Section 11 reports on international statistics and world totals. 140 figs., 141 tabs.

  7. Annual Performance Report FY 2010 Annual Performance Plan FY 2011

    Office of Environmental Management (EM)

    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 Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirley Ann Jackson About Us ShirleyU.S. DRIVE11ofAlana DuerrDeployment ofAnnouncing5Annual FuelAnnual

  8. Nonproliferation Graduate Fellowship Program Annual Report: Class of 2011

    SciTech Connect (OSTI)

    McMakin, Andrea H.

    2012-08-20

    Annual report for the Nonproliferation Graduate Fellowship Program (NGFP), which PNNL administers for the National Nuclear Security Administration (NNSA). Features the Class of 2011. The NGFP is a NNSA program with a mission to cultivate future technical and policy leaders in nonproliferation and international security. Through the NGFP, outstanding graduate students with career interests in nonproliferation are appointed to program offices within the Office of Defense Nuclear Nonproliferation (DNN). During their one-year assignment, Fellows participate in programs designed to detect, prevent, and reverse the proliferation of nuclear weapons.

  9. Recommendations: Draft 2010 Section 999 Annual Plan | Department of Energy

    Energy Savers [EERE]

    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 DeliciousMathematicsEnergyInterested PartiesBuildingBudget ||DepartmentReadoutReview of Lessons7 Annual09 Section10

  10. Recommendations: Draft 2012 Annual Plan | Department of Energy

    Energy Savers [EERE]

    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 DeliciousMathematicsEnergyInterested PartiesBuildingBudget ||DepartmentReadoutReview of Lessons7 Annual09Draft 2012

  11. Recommendations: Draft 2013 Annual Plan | Department of Energy

    Energy Savers [EERE]

    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 DeliciousMathematicsEnergyInterested PartiesBuildingBudget ||DepartmentReadoutReview of Lessons7 Annual09Draft3

  12. Inflation in a two 3-form fields scenario

    SciTech Connect (OSTI)

    Kumar, K. Sravan; Marto, J.; Moniz, P. Vargas; Nunes, Nelson J. E-mail: jmarto@ubi.pt E-mail: pmoniz@ubi.pt

    2014-06-01

    A setting constituted by N 3-form fields, without any direct interaction between them, minimally coupled to gravity, is introduced in this paper as a framework to study the early evolution of the universe. We focus particularly on the two 3-forms case. An inflationary scenario is found, emerging from the coupling to gravity. More concretely, the fields coupled in this manner exhibit a complex interaction, mediated by the time derivative of the Hubble parameter. Our investigation is supported by means of a suitable choice of potentials, employing numerical methods and analytical approximations. In more detail, the oscillations on the small field limit become correlated, and one field is intertwined with the other. In this type of solution, a varying sound speed is present, together with the generation of isocurvature perturbations. The mentioned features allow to consider an interesting model, to test against observation. It is subsequently shown how our results are consistent with current CMB data (viz.Planck and BICEP2)

  13. Geothermal Resources Council Annual Meeting - Doug Hollett Presentatio...

    Office of Environmental Management (EM)

    Resources Council Annual Meeting - Doug Hollett Presentation, October 2011 Geothermal Resources Council Annual Meeting - Doug Hollett Presentation, October 2011 Keynote...

  14. Evaluation of the cosmological constant in inflation with a massive non-minimal scalar field

    E-Print Network [OSTI]

    Jung-Jeng Huang

    2015-09-29

    In Schroedinger picture we study the possible effects of trans-Planckian physics on the quantum evolution of massive non-minimally coupled scalar field in de Sitter space. For the nonlinear Corley-Jacobson type dispersion relations with quartic or sextic correction, we obtain the time evolution of the vacuum state wave functional during slow-roll inflation, and calculate explicitly the corresponding expectation value of vacuum energy density. We find that the vacuum energy density is finite. For the usual dispersion parameter choice, the vacuum energy density for quartic correction to the dispersion relation is larger than for sextic correction, while for some other parameter choices, the vacuum energy density for quartic correction is smaller than for sextic correction. We also use the backreaction to constrain the magnitude of parameters in nonlinear dispersion relation, and show how the cosmological constant depends on the parameters and the energy scale during the inflation at the grand unification phase transition.

  15. Evaluation of the cosmological constant in inflation with a massive non-minimal scalar field

    E-Print Network [OSTI]

    Huang, Jung-Jeng

    2015-01-01

    In Schroedinger picture we study the possible effects of trans-Planckian physics on the quantum evolution of massive non-minimally coupled scalar field in de Sitter space. For the nonlinear Corley-Jacobson type dispersion relations with quartic or sextic correction, we obtain the time evolution of the vacuum state wave functional during slow-roll inflation, and calculate explicitly the corresponding expectation value of vacuum energy density. We find that the vacuum energy density is finite. For the usual dispersion parameter choice, the vacuum energy density for quartic correction to the dispersion relation is larger than for sextic correction, while for some other parameter choices, the vacuum energy density for quartic correction is smaller than for sextic correction. We also use the backreaction to constrain the magnitude of parameters in nonlinear dispersion relation, and show how the cosmological constant depends on the parameters and the energy scale during the inflation at the grand unification phase ...

  16. Higgs-portal assisted Higgs inflation with a large tensor-to-scalar ratio

    E-Print Network [OSTI]

    P. Ko; Wan-Il Park

    2014-11-19

    We show that the Higgs portal interactions involving extra dark Higgs field $\\phi$ can save generically the original Higgs inflation of the standard model (SM) in light of the constrained low energy parameters and a large tensor-to-scalar ratio ($r$) hinted by the recent result of BICEP2. Specifically, we show that such interactions disconnect the top quark pole mass from inflationary observables, and allow multi-dimensional parameter space to save the Higgs inflation, thanks to the additional parameters (the dark Higgs boson mass $m_\\phi$, the mixing angle $\\alpha$ between $H$ and $\\phi$, and the mixed quartic coupling) affecting RG-running of the Higgs quartic coupling. One can easily accommodate $r \\sim O(0.1)$ in wide ranges of $\\alpha$ and $m_\\phi$, some region of which can be probed at future colliders.

  17. FY 1994 Annual Work Plan

    SciTech Connect (OSTI)

    Not Available

    1993-09-30

    In accordance with the Inspector General`s Strategic Planning Policy directive, the Office of Inspector General (OIG) annually updates its Strategic Plan with budgetary and program guidance for the next fiscal year. The program guidance identifies and establishes priorities for OIG coverage of important DOE issues and operations, provides the basis for assigning OIG resources, and is the source for issues covered in Assistant Inspectors General annual work plans. The Office of the Assistant Inspector General for Audits (AIGA) publishes an Annual Work Plan in September of each year. The plan includes the OIG program guidance and shows the commitment of resources necessary to accomplish the assigned work and meet our goals. The program guidance provides the framework within which the AIGA work will be planned and accomplished. Audits included in this plan are designed to help insure that the requirements of our stakeholders have been considered and blended into a well balanced audit program.

  18. Danish Polymer Centre Annual Report 2002

    E-Print Network [OSTI]

    Danish Polymer Centre Annual Report 2002 #12;2 The Danish Polymer Centre, DTU and Risø Annual.1 Polymer based solar cells (photovoltaics) ................................ 5 2.2 Structuring Plastic ........................................................................ 17 2.7 Biodegradable polymer composites .......................................... 19 2

  19. Forest Research Annual Report and Accounts 20012002

    E-Print Network [OSTI]

    Forest Research Annual Report and Accounts 2001­2002 An Agency of the Forestry Commission #12;#12;Forest Research Annual Report and Accounts 2001­2002 Together with the Comptroller and Auditor General

  20. 3rd Annual Geosciences Student Research Symposium

    E-Print Network [OSTI]

    Saldin, Dilano

    3rd Annual Geosciences Student Research Symposium This symposium will showcase the research Geology Club. Saturday, March 3 UWM Union 191 9:00am~1:30pm 3rd Annual Geosciences Student Research

  1. Identification of Owner’s Project Value Interests 

    E-Print Network [OSTI]

    Gunby, Molly Gaynell

    2011-02-22

    the parameter estimates show specific project characteristics are significant in explaining the importance of individual value interests to a project. The model was developed through binary logistic regression of industry survey data, and validated... the applicability of individual value interests to a project. The methodology required to develop the mathematical model and test the hypothesis included the following activities: 1. Generation of data. In this step, the value interests and project...

  2. Farm Tractors in Kansas: How to Perfect a Security Interest

    E-Print Network [OSTI]

    Johnstun, Aaron J.; Ware, Stephen J.

    2009-01-01

    certificate-of-title statute, a different rule applies. For example, in all fifty states, motor vehicles are subject to a certificate- of-title statute. 8 The UCC provides that security interests in such collateral are perfected not by filing a financing... security interest in a motor vehicle be noted on the certificate of title. 11 Accordingly, the filing of a financing statement is not necessary or effective to perfect a security interest in a Missouri motor vehicle. By contrast, notation...

  3. 1annual report 2009-2010 University of Alberta Museums Annual Report,

    E-Print Network [OSTI]

    Machel, Hans

    1annual report 2009-2010 University of Alberta Museums Annual Report, including the report of the University of Alberta Museums Policy and Planning Committee ANNUAL REPORT July 1, 2009 to June 30, 2010 #12;#12;annual report 2009-2010 Contents 1.0 Executive Summary 2 2.0 Report of the University of Alberta Museums

  4. SFU Library Annual Report 2008-09 1 SFU Library Annual Report 2008-09

    E-Print Network [OSTI]

    SFU Library Annual Report 2008-09 1 SFU Library Annual Report 2008-09 Ask Explore Discover #12;2 SFU Library Annual Report 2008-09 #12;SFU Library Annual Report 2008-09 3 I t's always great to receive kudos about the services and collections we provide at the SFU Library. Occasionally we get

  5. Perturbations of the metric induced by back - reaction in the warm inflation scenario

    E-Print Network [OSTI]

    Mauricio Bellini

    1999-12-20

    A second-order expansion for the quantum fluctuations of the matter field was considered in the framemork of the warm inflation scenario. The friction and Hubble parameters were expanded by means of a semiclassical approach. The fluctuations of the Hubble parameter generates fluctuations of the metric. These metric fluctuations produce an effective term of curvature. The power spectrum for the metric fluctuations can be calculated on the infrared sector.

  6. Review of Inflatable Booms for Deployable Space Structures: Packing and Rigidization

    E-Print Network [OSTI]

    Schenk, Mark; Viquerat, Andrew D.; Seffen, Keith A.; Guest, Simon D.

    2014-04-21

    Review of Inflatable Booms for Deployable Space Structures: Packing and Rigidization Mark Schenk1, Andrew D. Viquerat 2 and Keith A. Seffen 3 and Simon D. Guest 4 Department of Engineering, University of Cambridge, Cambridge, CB2 1PZ, United Kingdom... Senior Lecturer, Cambridge University Engineering Department; kas14@cam.ac.uk 4 Reader, Cambridge University Engineering Department; sdg13@cam.ac.uk 1 Preprint of Mark Schenk, Andrew D. Viquerat, Keith A. Seffen, and Simon D. Guest. "Review...

  7. Low Interest Energy Efficiency Loan Program (Electric and Gas)

    Broader source: Energy.gov [DOE]

    Energize CT offers low interest loans for commercial and industrial customers for investments in energy efficiency improvements. Electric customers of Connecticut Light & Power, United...

  8. Review of Interests and Activities in Thermoelectric Materials...

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

    Research Laboratory Army interests in thermoelectrics include integrated TE-hand-held burners for battery-replacement, waste-heat recovery on vehicles, heat-powered mobile units,...

  9. DOE National Analytical Management Program Draws Global Interest

    Broader source: Energy.gov [DOE]

    CARLSBAD, N.M. – The National Analytical Management Program (NAMP), which coordinates analytical services and capabilities throughout DOE, has garnered global interest.

  10. Paper on "Other Major Litigation of Direct Interest to DOE"

    Broader source: Energy.gov (indexed) [DOE]

    cc: Ingrid Kolb Director, Office of Management g Printed with soy ink on recycled paper December 5, 2008 Other Major Litigation of Direct Interest to DOE Entergy...

  11. Sandia Energy - JBEI Research Receives Strong Industry Interest...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Research Receives Strong Industry Interest in DOE Technology Transfer Call Home Renewable Energy Energy Biofuels Facilities Partnership JBEI News News & Events Research &...

  12. Engineering The recent interest in bioenergy has motivated a closer

    E-Print Network [OSTI]

    Chemical Engineering The recent interest in bioenergy has motivated a closer look at microorganisms could facilitate other important biotransformations related to bioenergy applications. Our laboratory

  13. USGS Annual Water Data Reports

    SciTech Connect (OSTI)

    2012-04-01

    Water resources data are published annually for use by engineers, scientists, managers, educators, and the general public. These archival products supplement direct access to current and historical water data provided by the National Water Information System (NWIS). Beginning with Water Year 2006, annual water data reports are available as individual electronic Site Data Sheets for the entire Nation for retrieval, download, and localized printing on demand. National distribution includes tabular and map interfaces for search, query, display and download of data. Data provided include extreme and mean discharge rates.

  14. CCSI Annual Report 2012 PRODUCTION TEAM

    E-Print Network [OSTI]

    Annual Report 2012 3 Letter from the Director 5 Four Integrated Themes 7 Earth System Modeling 8 Climate

  15. Monthly/Annual Energy Review - electricity section

    Reports and Publications (EIA)

    2015-01-01

    Monthly and latest annual statistics on electricity generation, capacity, end-use, fuel use and stocks, and retail price.

  16. Third Annual Post Competition Accountability Report | Department...

    Energy Savers [EERE]

    Report - Office of Legacy Management's High Performing Organization: Fiscal Year (FY) 2014 Third Annual Post Competition Accountability Report More Documents &...

  17. Interfacial Chemistry and Engineering Annual Report 2000

    SciTech Connect (OSTI)

    Grate, Jay W.

    2001-08-01

    This annual report describes the research and staff accomplishments in 2000 for the EMSL Interfacial Chemistry and Engineering Directorate.

  18. National Science Teachers Association Annual Conference

    Broader source: Energy.gov [DOE]

    The National Science Teachers Association annual conference was held in Chicago, Illinois, from March 12–15, 2015.

  19. Monthly/Annual Energy Review - renewable section

    Reports and Publications (EIA)

    2015-01-01

    Monthly and latest annual statistics on renewable energy production and consumption and overviews of fuel ethanol and biodiesel.

  20. Higgs inflation and Higgs portal dark matter with right-handed neutrinos

    E-Print Network [OSTI]

    Naoyuki Haba; Hiroyuki Ishida; Ryo Takahashi

    2015-05-02

    We investigate the Higgs inflation and the Higgs portal dark matter with the right-handed neutrino. The dark matter and the right-handed neutrino in the Higgs inflation play important roles in explaining the recent experimental results of the Higgs and top masses, and the cosmic microwave background by BICEP2 at the same time. This inflation model predicts $805~{\\rm GeV} \\lesssim m_{\\rm DM} \\lesssim1220~{\\rm GeV}$ for the DM mass, $1.05 \\times10^{14}~{\\rm GeV} \\lesssim M_R \\lesssim 2.04 \\times10^{14}~{\\rm GeV}$ for the right-handed neutrino mass, and $8.42 \\lesssim \\xi \\lesssim 12.4$ for the non-minimal coupling within $m_H=125.6 \\pm 0.35~{\\rm GeV}$ for the Higgs and $M_t=173.34 \\pm 0.76~{\\rm GeV}$ for the top masses.

  1. Higgs gravitational interaction, weak boson scattering, and Higgs inflation in Jordan and Einstein frames

    SciTech Connect (OSTI)

    Ren, Jing; Xianyu, Zhong-Zhi; He, Hong-Jian E-mail: xianyuzhongzhi@gmail.com

    2014-06-01

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

  2. Ambiguity in running spectral index with an extra light field during inflation

    E-Print Network [OSTI]

    Kazunori Kohri; Tomohiro Matsuda

    2015-01-15

    At the beginning of inflation there could be extra dynamical scalar fields that will soon disappear (become static) before the end of inflation. In the light of multi-field inflation, those extra degrees of freedom may alter the time-dependence of the original spectrum of the curvature perturbation. It is possible to remove such fields introducing extra number of e-foldings prior to $N_e\\sim 60$, however such extra e-foldings may make the trans-Planckian problem worse due to the Lyth bound. We show that such extra scalar fields can change the running of the spectral index to give correction of $\\pm 0.01$ without adding significant contribution to the spectral index. The corrections to the spectral index (and the amplitude) could be important in considering global behavior of the corrected spectrum, although they can be neglected in the estimation of the spectrum and its spectral index at the pivot scale. The ambiguity in the running of the spectral index, which could be due to such fields, can be used to nullify tension between BICEP2 and Planck experiments.

  3. Emptiness of the Universe as a Cause of Inflation and Dark Energy

    E-Print Network [OSTI]

    Marochnik, Leonid

    2015-01-01

    It is shown that in a homogeneous isotropic empty (with no matter fields) Lorentzian space of the Universe gravitons and classical gravitational waves can be tunneled into Euclidean space of imaginary time through a topologically impenetrable barrier. They are damped here, giving their energy on the formation of the self-consistent de Sitter state, which is invariant with respect to Wick rotation. The latter suggests that it is formed in the Lorentzian space of real time too, and its appearance here can be considered as "tunneling from nothing". The present Universe is already ~70% empty, and it is going to become completely empty with decreasing of the energy density of non-relativistic matter in the process of cosmological expansion. The inflation is most likely had to start from the vacuum state also. De Sitter accelerated expansion of the empty Universe naturally explains the origin of dark energy and inflation because at the start (inflation) and by the end (dark energy)of its evolution the Universe is e...

  4. PAGE 12013 -2014 ANNUAL REPORT 2013-2014 ANNUAL REPORT

    E-Print Network [OSTI]

    Doty, Sharon Lafferty

    #12;PAGE 4 UW ENTERPRISE RISK MANAGEMENT Executive Summary 1 Top 10 Strategic Issues for Boards 2013 Management (UW-ERM) #12;PAGE 2 UW ENTERPRISE RISK MANAGEMENT #12;PAGE 32013 - 2014 ANNUAL REPORT Table............................................................................................................. 4 II. About Enterprise Risk Management

  5. CSEComputational Science and Engineering Annual Report

    E-Print Network [OSTI]

    Grohs, Philipp

    : www.rw.ethz.ch/dokumente/cse_annual_report_0506.pdf CSE curricula at ETH Zürich on the internet: www.rwCSEComputational Science and Engineering Annual Report 2005/2006 = (R)-alanine= (S)-alanine (all-S)-deca-alanine (R,S,R,S,R,S,R,S,R,S)-deca-alanine #12;. #12;CSEComputational Science and Engineering Annual Report

  6. CSEComputational Science and Engineering Annual Report

    E-Print Network [OSTI]

    Grohs, Philipp

    be downloaded from: www.rw.ethz.ch/dokumente/cse_annual_report_0607.pdf CSE curricula at ETH ZürichCSEComputational Science and Engineering Annual Report 2006/2007 #12;. #12;CSEComputational Science and Engineering Annual Report 2006 / 2007 July 2006 to July 2007 #12;Impressum: © 2007 ETH Zürich Editors: Rolf

  7. CSEComputational Science and Engineering Annual Report

    E-Print Network [OSTI]

    Grohs, Philipp

    be downloaded from: www.rw.ethz.ch/dokumente/cse_annual_report_0809.pdf CSE curricula at ETH ZürichCSEComputational Science and Engineering Annual Report 2008/2009 #12;. #12;CSEComputational Science and Engineering Annual Report 2008 / 2009 July 2008 to July 2009 #12;Impressum: © 2009 ETH Zürich Editors: Ralf

  8. CSEComputational Science and Engineering Annual Report

    E-Print Network [OSTI]

    Grohs, Philipp

    be downloaded from: www.rw.ethz.ch/dokumente/cse_annual_report_0708.pdf CSE curricula at ETH ZürichCSEComputational Science and Engineering Annual Report 2007/2008 #12;. #12;CSEComputational Science and Engineering Annual Report 2007 / 2008 July 2007 to July 2008 #12;Impressum: © 2008 ETH Zürich Editors: Ralf

  9. CSEComputational Science and Engineering Annual Report

    E-Print Network [OSTI]

    Grohs, Philipp

    be downloaded from: www.rw.ethz.ch/dokumente/cse_annual_report_0405.pdf CSE curricula at the ETH ZürichCSEComputational Science and Engineering Annual Report 2004/2005 #12;. #12;CSEComputational Science and Engineering Annual Report 2004 / 2005 July 2004 to July 2005 3 #12;Impressum: © 2005 ETH Zürich Editors: Rolf

  10. Colorado Water Institute Annual Technical Report

    E-Print Network [OSTI]

    Colorado Water Institute Annual Technical Report FY 2012 Colorado Water Institute Annual Technical Report FY 2012 1 #12;Introduction Colorado Water Institute Annual Report for the period: March 1, 2012 ­ February 28, 2013 Water research is more pertinent than ever in Colorado. Whether the project explores

  11. Office of Classroom Management 2011 Annual Report

    E-Print Network [OSTI]

    Ciocan-Fontanine, Ionut

    Office of Classroom Management 2011 Annual Report Office of Classroom Management · Academic Support Director, Office of Classroom Management Charts/graphs Table of Contents 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Office of Classroom Management 2011 Annual Report #12;1 2011 OCM Annual Report OCM's functions Scheduling

  12. Department of Medicine Annual Report 2015

    E-Print Network [OSTI]

    He, Chuan

    Department of Medicine Annual Report 2015 #12;B Depar tment of Medicine 12015 Annual Repor t I am delighted to present the Department of Medicine FY 15 Annual Report. This year's theme focuses on the impact medicine. Our clinicians, researchers and educators are dedicated to solving complex medical problems

  13. 2012 Annual Site Environmental Report (ASER)

    Office of Energy Efficiency and Renewable Energy (EERE)

    2012 Annual Site Environmental Report (ASER) Department of Energy (DOE) Order 231.1B, Environment, Safety and Health Reporting, requires that each DOE site prepare an Annual Site Environmental Report (ASER) documenting the site’s environmental conditions. The ASER is submitted to DOE-Headquarters annually and is available to the public.

  14. ANNUAL FISH PASSAGE REPORT ROCK ISLAND DAM

    E-Print Network [OSTI]

    ANNUAL FISH PASSAGE REPORT ROCK ISLAND DAM COLUMBIA RIVER, WASHINGTON, 1959 :y .iiJA/i-3ri ^' WUUUi. ANNUAL FISH PASSAGE REPORT - ROCK ISLAND DAM COLUMBIA RIVER, WASHINGTON, 1959 by Paul D. Zimmer, Clifton and observations 10 Summary 13 #12;#12;ANNUAL FISH PASSAGE REPORT - ROCK ISLAND DAM COLUMBIA RIVER, WASHINGTON

  15. Annual Fish Passage Report -Rock Island Dam

    E-Print Network [OSTI]

    Annual Fish Passage Report - Rock Island Dam Columbia River, Washington, 1965 By Paul D. Zimmer L. McKeman, Director Annual Fish Passage Report - Rock Island Dam Columbia River, Washington, 1965;#12;Annual Fish Passage Report - Rock Island Dam Columbia River, Washington, 1965 By PAUL D. ZIMMER, Fishery

  16. The public interest in public administration: an investigation of the communicative foundations of the public interest standard 

    E-Print Network [OSTI]

    Jordan, Sara Rene

    2007-09-17

    THE PUBLIC INTEREST IN PUBLIC ADMINISTRATION: AN INVESTIGATION OF THE COMMUNICATIVE FOUNDATIONS OF THE PUBLIC INTEREST STANDARD A Dissertation by SARA RENE JORDAN Submitted to the Office of Graduate Studies of Texas A&M University in partial... OF THE PUBLIC INTEREST STANDARD A Dissertation by SARA RENE JORDAN Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY Approved by: Co...

  17. What's Trending in Breathlessness Research? Proceedings of the 8th Annual Meeting of the Breathlessness Research Interest Group

    E-Print Network [OSTI]

    Chin, C. A.; Butcher, H. Holt; Ryan, R.; Johnson, M.; Pattinson, K.; Currow, D.; Banzett, R.; Yorke, J.; Clayson, H.; Macnaughton, J.; Penfold, C.; Farquhar, M.; Booth, S.

    2015-04-27

    -pharmacological interventions to try to improve breathlessness in former asbestos industry workers with asbestosis in Mumbai. The interventions trialled include exercise, fans, breathing control, positioning techniques, social support. They were evaluated with objective...

  18. Secular effects on inflation from one-loop quantum gravity

    E-Print Network [OSTI]

    J. A. Cabrer; D. Espriu

    2007-10-03

    In this paper we revisit and extend a previous analysis where the possible relevance of quantum gravity effects in a cosmological setup was studied. The object of interest are non-local (logarithmic) terms generated in the effective action of gravity due to the exchange in loops of massless modes (such as photons or the gravitons themselves). We correct one mistake existing in the previous work and discuss the issue in a more general setting in different cosmological scenarios. We obtain the one-loop quantum-corrected evolution equations for the cosmological scale factor up to a given order in a derivative expansion in two particular cases: a matter dominated universe with vanishing cosmological constant, and in a de Sitter universe. We show that the quantum corrections, albeit tiny, may have a secular effect that eventually modifies the expansion rate. For a de Sitter universe they tend to slow down the rate of the expansion, while the effect seems to have the opposite sign in a matter dominated universe. To partly understand these effects we provide a complementary newtonian analysis.

  19. Public Interest Energy Research (PIER) Program FINAL PROJECT REPORT

    E-Print Network [OSTI]

    Public Interest Energy Research (PIER) Program FINAL PROJECT REPORT Renewable Resource Manager Linda Spiegel Office Manager Energy Generation Research Office Laurie ten Hope Deputy Director for the unfailing guidance and assistance of the Public Interest Energy Research Program contract manager, Clare

  20. Public Interest Energy Research (PIER) Program FINAL PROJECT REPORT

    E-Print Network [OSTI]

    Public Interest Energy Research (PIER) Program FINAL PROJECT REPORT INDUSTRIAL PROCESS STEAM Lew Office Manager Energy Efficiency Research Office Laurie ten Hope Deputy Director RESEARCH of the report. #12;ii PREFACE The California Energy Commission Public Interest Energy Research (PIER) Program

  1. Public Interest Energy Research (PIER) Program FINAL PROJECT REPORT

    E-Print Network [OSTI]

    Public Interest Energy Research (PIER) Program FINAL PROJECT REPORT HOW LOW CAN YOU GO Office Manager Energy Efficiency Research Office Laurie ten Hope Deputy Director RESEARCH AND DEVELOPMENT Commission, Public Interest Energy Research Program. CEC5002012065. #12;ii PREFACE The California Energy

  2. Academic Planning Join a campus organization of interest to you.

    E-Print Network [OSTI]

    Kunkle, Tom

    Academic Planning · Join a campus organization of interest to you. · Continue completion of general hours, declare a major. Career Planning · Identify different career interests and begin researching-related skills. SophomoreYear Academic Planning · Complete all major coursework and any other outstanding

  3. Dynamically Adaptive Partition-based Interest Management in Distributed Simulation

    E-Print Network [OSTI]

    Kumova, Bora

    Dynamically Adaptive Partition-based Interest Management in Distributed Simulation Bora . Kumova on the effectiveness of the employed interest management (IM) schema that aims at reducing the overall computational the processing load from overloaded areas of the shared data to less loaded hosts, the partition-based technique

  4. Getting Started with CITI Financial Conflict of Interest Tutorial Instructions

    E-Print Network [OSTI]

    . The online training course is titled Conflict of Interest Mini Course. Modules include instructional material Institutional Training Initiative (CITI) as a component of our financial conflict of interest training program a course, click on the course name, which is a hyperlink. Complete the required modules and any associated

  5. Understanding the Interaction between Interests, Conversations and Friendships in Facebook

    E-Print Network [OSTI]

    Understanding the Interaction between Interests, Conversations and Friendships in Facebook Qirong the Interaction between Interests, Conversations and Friendships in Facebook Qirong Ho Rong Yan Rajat Raina Eric P 15213 Facebook, 10 Hacker Way, Menlo Park CA 94025 Abstract In this paper, we explore salient questions

  6. Annual Report Fiscal Year 2007

    E-Print Network [OSTI]

    Technology Transfer Annual Report Fiscal Year 2007 (July 1, 2006 - June 30, 2007) #12;CONTENTS as the primary source of quantitative data to report. This survey collects yearly information on the number for new ways to foster and encourage industry. This report shows the results achieved in Fiscal Year 2007

  7. Annual Report 2010 Aarhus University

    E-Print Network [OSTI]

    Schierup, Mikkel Heide

    : The Danish Energy Agency The Environmental Protection Agency The Government of Greenland Private foundations4th Annual Report 2010 Aarhus University DCE ­ Danish Centre for Environment and Energy #12: Aarhus University, DCE ­ Danish Centre for Environment and Energy URL: http://dmu.au.dk Year

  8. Annual Report 20102011 ITS INSTITUTE

    E-Print Network [OSTI]

    Minnesota, University of

    Annual Report 2010­2011 ITS INSTITUTE Human-centered technology to enhance safety and mobility #12 of Minnesota 200 Transportation and Safety Building 511 Washington Ave. S.E. Minneapolis, MN 55455- assist system (DAS) developed by ITS Institute, 2011. ITS staff photo. Nighttime car crash on major

  9. 1982 laser program annual report

    SciTech Connect (OSTI)

    Hendricks, C.D.; Grow, G.R.

    1983-08-01

    This annual report covers the following eight sections: (1) laser program review, (2) laser systems and operation, (3) target design, (4) target fabrication, (5) fusion experiments program, (6) Zeus laser project, (7) laser research and development, and (8) energy applications. (MOW)

  10. Fiscal Year 2007 ANNUAL REPORT

    E-Print Network [OSTI]

    ratepayers enjoy the benefits of the low-cost federal hydropower system while responsibly addressing and involve the public in decision-making. This annual report has been developed pursuant to Section 4(h)(12 emitted by Northwest power plants and recommended ways to reduce resulting emissions, and developed new

  11. UNIVERSITY HEALTH SERVICES ANNUAL REPORT

    E-Print Network [OSTI]

    Wisconsin at Madison, University of

    UNIVERSITY HEALTH SERVICES ANNUAL REPORT 2009-2010 UHS Mission: To enhance learning and student to student-focused services. o A commitment to providing culturally competent and respectful services to all Services meets the changing needs of all university students in a culturally competent and respectful

  12. Fusion Power Associates Annual Meeting

    E-Print Network [OSTI]

    Fusion Power Associates Annual Meeting Washington, DC 2 December 2009 R. L. McCrory Professor OMEGA (2009) OMEGA hydro-equivalent ignition Q = 2 Ignition CTF FRC Spheromak RFP ST Stellarator Tokamak to Physical Review Letters. 0 1 0 2 3 2 4 6 8 Time (ns) Three-picket NIF design Power/beam(TW) 10 12 160 nm DT

  13. Data Management Group Annual Report

    E-Print Network [OSTI]

    Toronto, University of

    Data Management Group Annual Report 2004 City of Hamilton City of Toronto GO Transit Regional of York Toronto Transit Commission The Data Management Group is a research program located of the funding partners: Ministry of Transportation, Ontario #12;SUMMARY The Data Management Group (DMG

  14. Security Division 2007 Annual Report

    E-Print Network [OSTI]

    research programs. These programs, which include Cyber Security, Pervasive Information TechnologiesComputer Security Division 2007 Annual Report #12;TAble of ConTenTS Welcome Division Organization The Computer Security Division Responds to the Federal Information Security Management Act of 2002 Security

  15. Data Management Group Annual Report

    E-Print Network [OSTI]

    Toronto, University of

    Data Management Group Annual Report 2000 prepared by: Data Management Group Joint Program ...........................................18 #12;i SUMMARY The Data Management Group (DMG), in cooperation with the funding agencies, has. In addition, there were 26 complex requests for data that required a customized computer program. Eight

  16. CIEE 1993 annual conference: Program

    SciTech Connect (OSTI)

    Not Available

    1993-08-01

    The California Institute for Energy efficiency`s third annual conference highlights the results of CIEE-sponsored multiyear research in three programs: Building Energy Efficiency, Air Quality Impacts of Energy Efficiency, and End-Use Resource Planning. Results from scoping studies, Director`s discretionary research, and exploratory research are also featured.

  17. CHEMISTRY SENIORS ANNUAL PRIZE COMPETITIONS

    E-Print Network [OSTI]

    Vertes, Akos

    (Analytical, Inorganic, Organic, and Physical) in chemistry. The Byrne Thurtell Burns Memorial PrizeCHEMISTRY SENIORS ANNUAL PRIZE COMPETITIONS Each spring the Chemistry Department sponsors a competition for two large monetary prizes to be awarded to graduating chemistry majors on Commencement weekend

  18. Broad area search for regions and objects of interest

    SciTech Connect (OSTI)

    Skurikhin, Alexei N; Pope, Paul A

    2011-01-12

    A quad chart provides an overview on the on-going project 'Broad Area Search for Regions and Objects of Interest' funded by the DOE Office of Nonproliferation and Verification Research and Development. Specifically, the quad chart shows: (1) Project title 'Broad Area Search for Regions and Objects of Interest'; (2) PI and Co-investigators; (3) Concept Panel outlining the project's approach built upon front-end scale-space image analysis; (4) Technical Challenges posed by the project, such as robustness, non-conformities, disparate spatial configuration and weak correlation between presence of objects of interest and low-level description of the surrounding geospatial background; and (5) Planned Accomplishment.

  19. Quantum Interest in (3+1) dimensional Minkowski space

    E-Print Network [OSTI]

    Gabriel Abreu; Matt Visser

    2009-03-05

    The so-called "Quantum Inequalities", and the "Quantum Interest Conjecture", use quantum field theory to impose significant restrictions on the temporal distribution of the energy density measured by a time-like observer, potentially preventing the existence of exotic phenomena such as "Alcubierre warp-drives" or "traversable wormholes". Both the quantum inequalities and the quantum interest conjecture can be reduced to statements concerning the existence or non-existence of bound states for a certain one-dimensional quantum mechanical pseudo-Hamiltonian. Using this approach, we shall provide a simple proof of one version of the Quantum Interest Conjecture in (3+1) dimensional Minkowski space.

  20. Quantum Interest in (3+1) dimensional Minkowski space

    E-Print Network [OSTI]

    Abreu, Gabriel

    2008-01-01

    The so-called "Quantum Inequalities", and the "Quantum Interest Conjecture", use quantum field theory to impose significant restrictions on the temporal distribution of the energy density measured by a time-like observer, potentially preventing the existence of exotic phenomena such as "Alcubierre warp-drives" or "traversable wormholes". Both the quantum inequalities and the quantum interest conjecture can be reduced to statements concerning the existence or non-existence of bound states for a certain one-dimensional quantum mechanical pseudo-Hamiltonian. Using this approach, we shall provide a simple proof of one version of the Quantum Interest Conjecture in (3+1) dimensional Minkowski space.