搜索结果: 1-15 共查到“理学 Inflation”相关记录99条 . 查询时间(0.128 秒)
Event-rate and delta inflation when evaluating mortality as a primary outcome from randomized controlled trials of nutritional interventions during critical illness: a systematic review
critical illness delta inflation enteral nutrition parenteral nutrition clinical trial mortality nutrition therapy
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2018/11/29
Background: There is a lack of high-quality evidence that proves that nutritional interventions during critical illness reduce mortality.
An Effective Theory of Initial Conditions in Inflation
The new physics cosmic microwave radiation power spectrum
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2014/12/20
We examine the renormalization of an effective theory description of a general initial state set in an isotropically expanding space-time, which is done to understand how to include the effects of new...
Nonisotropy in the CMB power spectrum in single field inflation
Inflation the space gradient field the initial value the radiation power spectrum
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2014/12/19
Contaldi et al. [C. R. Contaldi, M. Peloso, L. Kofman, and A. Linde, J. Cosmol. Astropart. Phys. 07 (2003) 002] have suggested that an initial period of kinetic energy domination in single field...
Gravitational Wave Production through Decay of the Inflaton into Intermediary Fields During Slow Roll Inflation
Gravitational Wave Intermediary Fields Slow Roll Inflation
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2014/11/20
This dissertation looks for possible observable signals of tensor metric perturbations sourced during slow roll inflation from decay of the inflaton field into other intermediary fields. We focus on t...
Inflation and the cosmological constant
general relativity infl ationary universe cosmological constant
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2011/10/14
A particular compensation-type solution of the main cosmological constant problem has been proposed recently, with two massless vector fields dynamically canceling an arbitrary cosmological constant \...
Higgs inflation in minimal supersymmetric SU(5) GUT
Higgs inflation minimal supersymmetric
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2011/10/14
The Standard Model Higgs boson with large non-minimal coupling to the gravitational curvature can drive cosmological inflation. We study this type of inflationary scenario in the context of supersymme...
Dynamics of Cosmological Perturbations in Multi-Speed Inflation
Dynamics Cosmological Perturbations Multi-Speed Inflation
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2011/10/18
We study a multi-field inflationary theory with separable Lagrangian, which has different speed of sound for each field. We find that the fields always coupled at perturbative level through gravitatio...
Non-metric chaotic inflation
Non-metric chaotic inflation
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2011/10/11
We consider inflation within the context of what is arguably the simplest non-metric extension of Einstein gravity. There non-metricity is described by a single graviscalar field with a non-minimal ki...
Observational consequences of the Standard Model Higgs inflation variants
cosmic microwave background cosmological parameters early universe infl a-tion observations
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2011/10/10
We consider the possibility to observationally differentiate the Standard Model (SM) Higgs driven inflation with non-minimal couplingto gravity from other variants of SM Higgs inflation based on the s...
Natural Warm Inflation
Infl ation Axion
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2011/10/11
We derive the requirements that a generic axion-like field has to satisfy in order to play the role of the inflaton field in the warm inflation scenario. Compared to the parameter space in ordinary na...
Inflation and primordial non-Gaussianities of "generalized Galileons"
Inflation primordial non-Gaussianities
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2011/10/9
We set up cosmological perturbation theory and study the cosmological implications of the so-called `generalized Galileon' developed in \cite{Deffayet:2011gz,horndeski}.This is the most general scalar...
Primordial black hole formation and hybrid inflation
Primordial formation hybrid inflation
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2011/9/29
We calculate the contribution to the curvature perturbation, that is generated while the waterfall field grows exponentially (which can occur only if the waterfall field mass is $m\gg H$). We consider...
Observational test of inflation in loop quantum cosmology
cosmology of theories beyond the SM cosmological perturbation theory quantum cosmology quantum gravity phenomenology
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2011/10/18
We study in detail the power spectra of scalar and tensor perturbations generated during inflation in loop quantum cosmology (LQC). After clarifying in a novel quantitative way how inverse-volume corr...
Entropic Force Scenarios and Eternal Inflation
Entropic Force Scenarios Eternal Inflation
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2011/10/18
We examine various entropic inflation scenarios, under the light of eternality. After describing the inflation realization and the normal condition for inflation to last at the background level, we in...
We propose a model of inflation where the Chern-Simons interaction and vector fields play a central role in generating an inflationary epoch. As a result, in accord with the APS mechanism, the Sakharo...