Quadratic reheating

The reheating process for the inflationary scenario is investigated phenomenologically. The decay of the oscillating massive inflaton field into light bosons is modeled after an out of equilibrium mixture of interacting fluids within the framework of irreversible thermodynamics. Self-consistent, ana...

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Autores principales: Chimento, L.P., Jakubi, A.S.
Formato: JOUR
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_02182718_v8_n3_p307_Chimento
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling todo:paper_02182718_v8_n3_p307_Chimento2023-10-03T15:11:01Z Quadratic reheating Chimento, L.P. Jakubi, A.S. The reheating process for the inflationary scenario is investigated phenomenologically. The decay of the oscillating massive inflaton field into light bosons is modeled after an out of equilibrium mixture of interacting fluids within the framework of irreversible thermodynamics. Self-consistent, analytic results for the evolution of the main macroscopic magnitudes like temperature and particle number densities are obtained. The models for linear and quadratic decay rates are investigated in the quasiperfect regime. The linear model is shown to reheat very slowly while the quadratic one is shown to yield explosive particle and entropy production. The maximum reheating temperature is reached much faster and its magnitude is comparable with the inflaton mass. Fil:Chimento, L.P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Jakubi, A.S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_02182718_v8_n3_p307_Chimento
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description The reheating process for the inflationary scenario is investigated phenomenologically. The decay of the oscillating massive inflaton field into light bosons is modeled after an out of equilibrium mixture of interacting fluids within the framework of irreversible thermodynamics. Self-consistent, analytic results for the evolution of the main macroscopic magnitudes like temperature and particle number densities are obtained. The models for linear and quadratic decay rates are investigated in the quasiperfect regime. The linear model is shown to reheat very slowly while the quadratic one is shown to yield explosive particle and entropy production. The maximum reheating temperature is reached much faster and its magnitude is comparable with the inflaton mass.
format JOUR
author Chimento, L.P.
Jakubi, A.S.
spellingShingle Chimento, L.P.
Jakubi, A.S.
Quadratic reheating
author_facet Chimento, L.P.
Jakubi, A.S.
author_sort Chimento, L.P.
title Quadratic reheating
title_short Quadratic reheating
title_full Quadratic reheating
title_fullStr Quadratic reheating
title_full_unstemmed Quadratic reheating
title_sort quadratic reheating
url http://hdl.handle.net/20.500.12110/paper_02182718_v8_n3_p307_Chimento
work_keys_str_mv AT chimentolp quadraticreheating
AT jakubias quadraticreheating
_version_ 1782030424821727232

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