Inhomogeneous cosmologies with Q matter and varying [formula presented]

Starting from the inhomogeneous shear-free Nariai metric we show, by solving the Einstein-Klein-Gordon field equations, how a self-interacting scalar field plus a material fluid, a variable cosmological term, and a heat flux can drive the universe to its currently observed state of homogeneous accel...

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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_15507998_v60_n10_p_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_15507998_v60_n10_p_Chimento2023-10-03T16:23:40Z Inhomogeneous cosmologies with Q matter and varying [formula presented] Chimento, L.P. Jakubi, A.S. Starting from the inhomogeneous shear-free Nariai metric we show, by solving the Einstein-Klein-Gordon field equations, how a self-interacting scalar field plus a material fluid, a variable cosmological term, and a heat flux can drive the universe to its currently observed state of homogeneous accelerated expansion. A quintessence scenario where power-law inflation takes place for a string-motivated potential in the late-time dominated field regime is proposed. © 1999 The American Physical Society. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_15507998_v60_n10_p_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 Starting from the inhomogeneous shear-free Nariai metric we show, by solving the Einstein-Klein-Gordon field equations, how a self-interacting scalar field plus a material fluid, a variable cosmological term, and a heat flux can drive the universe to its currently observed state of homogeneous accelerated expansion. A quintessence scenario where power-law inflation takes place for a string-motivated potential in the late-time dominated field regime is proposed. © 1999 The American Physical Society.
format JOUR
author Chimento, L.P.
Jakubi, A.S.
spellingShingle Chimento, L.P.
Jakubi, A.S.
Inhomogeneous cosmologies with Q matter and varying [formula presented]
author_facet Chimento, L.P.
Jakubi, A.S.
author_sort Chimento, L.P.
title Inhomogeneous cosmologies with Q matter and varying [formula presented]
title_short Inhomogeneous cosmologies with Q matter and varying [formula presented]
title_full Inhomogeneous cosmologies with Q matter and varying [formula presented]
title_fullStr Inhomogeneous cosmologies with Q matter and varying [formula presented]
title_full_unstemmed Inhomogeneous cosmologies with Q matter and varying [formula presented]
title_sort inhomogeneous cosmologies with q matter and varying [formula presented]
url http://hdl.handle.net/20.500.12110/paper_15507998_v60_n10_p_Chimento
work_keys_str_mv AT chimentolp inhomogeneouscosmologieswithqmatterandvaryingformulapresented
AT jakubias inhomogeneouscosmologieswithqmatterandvaryingformulapresented
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