Results 31 to 40 of about 9,790 (281)

Revisiting Barrow's graduated inflationary universe: A warm perspective

open access: yesPhysics Letters B, 2022
It is presumed that thermal fluctuations present during inflationary epoch can make inflaton scalar field to interact with other fields resulting in the existence of a thermal component during the inflationary period.
Subhra Bhattacharya
doaj   +1 more source

Is warm inflation possible? [PDF]

open access: yesPhysical Review D, 1999
22 pages ...
Yokoyama, Jun'ichi, Linde, Andrei
openaire   +2 more sources

Warm vector inflation [PDF]

open access: yesPhysics Letters B, 2013
In this paper we introduce the "warm vector inflation" scenario. In warm inflation scenario radiation is produced during the inflation epoch and reheating is avoided. Slow-roll and perturbation parameters of this model are presented. We develop our model using intermediate inflation model.
Setare, M. R., Kamali, V.
openaire   +3 more sources

Extended warm inflation [PDF]

open access: yesPhysical Review D, 1999
11 pages, 1 ...
Maia, J. M. F., Lima, J. A. S.
openaire   +2 more sources

Minimal warm inflation with complete medium response

open access: yes, 2021
If a homogeneous field evolves within a medium, with the latter gradually pick- ing up a temperature, then the friction felt by the field depends on how its evolution rate compares with medium time scales.
Laine, M., Procacci, S.
core   +1 more source

Strengthening the de Sitter swampland conjecture in warm inflation

open access: yesJournal of High Energy Physics, 2020
The de Sitter constraint on the space of effective scalar field theories consistent with superstring theory provides a lower bound on the slope of the potential of a scalar field which dominates the evolution of the Universe, e.g., a hypothetical ...
Robert Brandenberger   +2 more
doaj   +1 more source

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

A comparison between standard slow-roll inflation and warm inflation [PDF]

open access: yes, 2023
openInflation is a postulated period of accelerated expansion that took place well within the first seconds of the universe and that provides initial conditions for the following cosmological evolution that are in excellent agreement with observations ...
MAROTTA, GABRIELE
core  

Natural warm inflation [PDF]

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

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