Results 41 to 50 of about 9,790 (281)
WARM INFLATION MODEL BUILDING [PDF]
International Journal of Modern Physics A, 2009 We review the main aspects of the warm inflation scenario, focusing on the inflationary dynamics and the predictions related to the primordial spectrum of perturbations, to be compared with the recent cosmological observations. We study in detail three different classes of inflationary models, chaotic, hybrid models and hilltop models, and discuss ...
Bastero-Gil, Mar, Berera, Arjun
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Identifying universality in warm inflation [PDF]
Journal of Cosmology and Astroparticle Physics, 2018 20 pages, 5 figures, 1 ...
Berera, Arjun +3 more
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Intermediate class of warm pseudoscalar inflation
European Physical Journal C: Particles and Fields, 2021 High dissipative regime of warm pseudoscalar inflation model (Kamali in Phys Rev D 100:043520, arXiv:1901.01897 [gr-qc], 2019) with an approximately constant value of dissipation parameter Q is studied.
Saeid Ebrahimi, Vahid Kamali, Asma Alaei
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WARM TACHYONIC INFLATION IN A WARPED BACKGROUND [PDF]
International 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.
Deshamukhya, Atri, Panda, Sudhakar
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k-essence for warm inflation on the brane [PDF]
International Journal of Geometric Methods in Modern Physics, 2017 In this paper, [Formula: see text]-inflation is analyzed in warm braneworld scenario. A general class of [Formula: see text]-essence models with power-law kinetic term is investigated and weak and strong dissipation regimes are studied. Scalar perturbations and spectral index are derived. The results are discussed and applied to specific examples.
Sebastiani, Lorenzo, Myrzakulov, Ratbay
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Constraints of Anisotropy on Warm Power-Law Ination in Light of Planck Results [PDF]
Iranian Journal of Astronomy and Astrophysics, 2021 In this article, we examine the effects of anisotropy on a model of canonical warm inflation with the power-law potential. And we have compared the limitations of this model with Planck's results.
Zahra Ghadiry +2 more
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Monomial warm inflation revisited
, 2023 We revisit the idea that the inflaton may have dissipated part of its energy into a thermal bath during inflation, considering monomial inflationary potentials and three different forms of dissipation rate.
Pérez Rodríguez, Alejandro +2 more
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Salvaging power-law inflation through warming
European Physical Journal C: Particles and Fields, 2023 Power-law inflation with scale factor $$a \propto t^m$$ a ∝ t m is investigated in the context of warm inflation. The treatment is performed in the weak and strong dissipation limits.
M. Alhallak, N. Chamoun, M. S. Eldaher
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Defying eternal inflation in warm inflation with a negative running
, 2023 It was pointed out previously~\cite{Kinney:2014jya} that a sufficiently negative running of the spectral index of curvature perturbations from (ordinary i.e. cold) inflation is able to prevent eternal inflation from ever occurring.
Vicente, Gustavo S. +4 more
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