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, Luis Pascual, Jakubi, Alejandro Silvio
Publicado: 1999
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02182718_v8_n3_p307_Chimento
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 paper:paper_02182718_v8_n3_p307_Chimento2023-06-08T15:21:33Z Quadratic reheating Chimento, Luis Pascual Jakubi, Alejandro Silvio 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. 1999 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02182718_v8_n3_p307_Chimento 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.
author Chimento, Luis Pascual
Jakubi, Alejandro Silvio
spellingShingle Chimento, Luis Pascual
Jakubi, Alejandro Silvio
Quadratic reheating
author_facet Chimento, Luis Pascual
Jakubi, Alejandro Silvio
author_sort Chimento, Luis Pascual
title Quadratic reheating
title_short Quadratic reheating
title_full Quadratic reheating
title_fullStr Quadratic reheating
title_full_unstemmed Quadratic reheating
title_sort quadratic reheating
publishDate 1999
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02182718_v8_n3_p307_Chimento
http://hdl.handle.net/20.500.12110/paper_02182718_v8_n3_p307_Chimento
work_keys_str_mv AT chimentoluispascual quadraticreheating
AT jakubialejandrosilvio quadraticreheating
_version_ 1768542172850683904

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