Results 21 to 30 of about 10,536 (250)

Natural warm inflation [PDF]

open access: yesJournal of Cosmology and Astroparticle Physics, 2011
19 pages, 7 figures; version accepted in ...
openaire   +3 more sources

GEOMETRIC TACHYON AND WARM INFLATION [PDF]

open access: yesModern Physics Letters A, 2013
The inflationary models developed in presence of a background radiation can be a solution to the reheating problem faced by common cold (isentropic) inflationary scenario. A D-brane system comprising of k Neuvo–Schwarz (NS) 5-branes with a transverse circle and BPS D3-branes with world volume parallel to the NS 5-branes, placed at a point on the ...
Bhattacharjee, Anindita   +1 more
openaire   +2 more sources

G-warm inflation [PDF]

open access: yesJournal of Cosmology and Astroparticle Physics, 2017
23 pages, 4 figures, Accepted for publication in ...
openaire   +2 more sources

WARM INFLATION MODEL BUILDING [PDF]

open access: yesInternational 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
openaire   +2 more sources

Identifying universality in warm inflation [PDF]

open access: yesJournal of Cosmology and Astroparticle Physics, 2018
20 pages, 5 figures, 1 ...
Berera, Arjun   +3 more
openaire   +3 more sources

WARM TACHYONIC INFLATION IN A WARPED BACKGROUND [PDF]

open access: yesInternational 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
openaire   +3 more sources

k-essence for warm inflation on the brane [PDF]

open access: yesInternational 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
openaire   +2 more sources

Warm inflation with an oscillatory inflaton in the non-minimal kinetic coupling model

open access: yesEuropean Physical Journal C: Particles and Fields, 2017
In the cold inflation scenario, the slow roll inflation and reheating via coherent rapid oscillation, are usually considered as two distinct eras. When the slow roll ends, a rapid oscillation phase begins and the inflaton decays to relativistic particles
Parviz Goodarzi, H. Mohseni Sadjadi
doaj   +1 more source

Warm pseudoscalar inflation [PDF]

open access: yesPhysical Review D, 2019
5 pages, 3 figures, 1 table, comments ...
openaire   +2 more sources

Salvaging power-law inflation through warming

open access: yesEuropean 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
doaj   +1 more source

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