Chaos in Robertson-Walker cosmology

Chaos in Robertson-Walker cosmological models where gravity is coupled to one or more scalar fields has been studied by a few authors, mostly using numerical simulations. In this paper we begin a systematic study of the analytical aspect. We consider one conformally coupled scalar field and, using t...

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Autores principales: Bombelli, L., Lombardo, F., Castagnino, M.
Formato: JOUR
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00222488_v39_n11_p6040_Bombelli
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00222488_v39_n11_p6040_Bombelli
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spelling todo:paper_00222488_v39_n11_p6040_Bombelli2023-10-03T14:29:42Z Chaos in Robertson-Walker cosmology Bombelli, L. Lombardo, F. Castagnino, M. Chaos in Robertson-Walker cosmological models where gravity is coupled to one or more scalar fields has been studied by a few authors, mostly using numerical simulations. In this paper we begin a systematic study of the analytical aspect. We consider one conformally coupled scalar field and, using the fact that the model is integrable when the field is massless, we show in detail how homoclinic chaos arises for nonzero masses using a perturbative method. © 1998 American Institute of Physics. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00222488_v39_n11_p6040_Bombelli
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description Chaos in Robertson-Walker cosmological models where gravity is coupled to one or more scalar fields has been studied by a few authors, mostly using numerical simulations. In this paper we begin a systematic study of the analytical aspect. We consider one conformally coupled scalar field and, using the fact that the model is integrable when the field is massless, we show in detail how homoclinic chaos arises for nonzero masses using a perturbative method. © 1998 American Institute of Physics.
format JOUR
author Bombelli, L.
Lombardo, F.
Castagnino, M.
spellingShingle Bombelli, L.
Lombardo, F.
Castagnino, M.
Chaos in Robertson-Walker cosmology
author_facet Bombelli, L.
Lombardo, F.
Castagnino, M.
author_sort Bombelli, L.
title Chaos in Robertson-Walker cosmology
title_short Chaos in Robertson-Walker cosmology
title_full Chaos in Robertson-Walker cosmology
title_fullStr Chaos in Robertson-Walker cosmology
title_full_unstemmed Chaos in Robertson-Walker cosmology
title_sort chaos in robertson-walker cosmology
url http://hdl.handle.net/20.500.12110/paper_00222488_v39_n11_p6040_Bombelli
work_keys_str_mv AT bombellil chaosinrobertsonwalkercosmology
AT lombardof chaosinrobertsonwalkercosmology
AT castagninom chaosinrobertsonwalkercosmology
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