Results 31 to 40 of about 771,516 (312)

Constant-roll warm inflation within Rastall gravity

open access: yesNuclear Physics B
This research paper used a newly proposed strategy for finding the exact inflationary solutions to the Friedman equations in the context of Rastall theory of gravity (RTG), which is known as constant-roll warm inflation (CRWI).
Rabia Saleem   +3 more
doaj   +2 more sources

Stage IV CMB forecasts for warm inflation [PDF]

open access: greenJournal of Cosmology and Astroparticle Physics
We report forecast constraints on warm inflation in the light of future cosmic microwave background (CMB) surveys, with data expected to be available in the coming decade.
F. B. M. dos Santos   +3 more
openalex   +2 more sources

Perturbations in warm inflation [PDF]

open access: greenPhysical Review D, 2001
12 pages, no figures, requires revtex4. Further explanation on the origin of the entropy perturbation, reference added and minor notation change. Version accepted for publication in Phys.
H. P. de Oliveira, S. E. Jorás
openalex   +3 more sources

Noncanonical warm inflation with nonminimal derivative coupling [PDF]

open access: hybridJournal of Cosmology and Astroparticle Physics
This study extended noncanonical warm inflation to the nonminimal derivative coupling scenario. The fundamental equations, including the evolution equations and the slow roll equations of this new framework, were derived. The enlarged damping term, which
Xiao-Min Zhang   +6 more
openalex   +2 more sources

Dark Matter Production during Warm Inflation via Freeze-In

open access: hybridPhysical Review Letters
We present a novel perspective on the role of inflation in the production of dark matter (DM). Specifically, we explore the DM production during warm inflation via ultraviolet freeze-in (WIFI).
Katherine Freese   +2 more
openalex   +2 more sources

Loosely coupled particles in warm inflation [PDF]

open access: greenJournal of Cosmology and Astroparticle Physics
Cosmological perturbations in warm inflation are conventionally described by an EFT. It consists of the inflaton field coupled to a radiation fluid and applies to energy scales of order Hubble H and inflaton decay width γ, but well below temperature T ...
Mehrdad Mirbabayi
openalex   +2 more sources

Natural warm inflation [PDF]

open access: greenJournal of Cosmology and Astroparticle Physics, 2011
19 pages, 7 figures; version accepted in ...
Luca Visinelli
openalex   +5 more sources

Warm Inflation and Scalar Perturbations of the Metric [PDF]

open access: greenGeneral Relativity and Gravitation, 2001
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.
Mauricio Bellini
openalex   +7 more sources

WARM TACHYONIC INFLATION IN A WARPED BACKGROUND [PDF]

open access: greenInternational Journal of Modern Physics D, 2009
We analyze warm tachyonic inflation, proposed in the literature, from the viewpoint of four-dimensional effective action for the tachyon field on a non-BPS D3-brane. We find that consistency with observational data on density perturbation and validity of effective action requires warped compactification.
Atri Deshamukhya, Sudhakar Panda
openalex   +5 more sources

Warm non-minimally coupled Peccei–Quinn inflation and de Sitter Swampland conjecture

open access: diamondNuclear Physics B
In this study, we explore the dynamics of warm inflation within a non-minimally coupled Peccei–Quinn (PQ) framework and evaluate its compatibility with the de Sitter Swampland Conjecture.
Jureeporn Yuennan   +2 more
doaj   +2 more sources

Home - About - Disclaimer - Privacy