Bridging geometries and potentials in DBI cosmologies

We investigate the link between the warp function and the potential in Dirac-Born-Infeld (DBI) power-law cosmologies. We give a prescription to take advantage of the fact that there is always a choice of potential resulting in a constant ratio between pressure and energy density for a given a warp f...

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Detalles Bibliográficos
Autores principales: Chimento, L.P., Lazkoz, R.
Formato: JOUR
Materias:
DBI model
Inflation
Scalar fields
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00017701_v40_n12_p2543_Chimento
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00017701_v40_n12_p2543_Chimento
record_format dspace
spelling todo:paper_00017701_v40_n12_p2543_Chimento2023-10-03T13:52:06Z Bridging geometries and potentials in DBI cosmologies Chimento, L.P. Lazkoz, R. DBI model Inflation Scalar fields We investigate the link between the warp function and the potential in Dirac-Born-Infeld (DBI) power-law cosmologies. We give a prescription to take advantage of the fact that there is always a choice of potential resulting in a constant ratio between pressure and energy density for a given a warp factor. We illustrate the method with several examples, and complete the investigation by showing how symmetries can be used to generate new DBI solutions from existing ones. © 2008 Springer Science+Business Media, LLC. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00017701_v40_n12_p2543_Chimento
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic DBI model
Inflation
Scalar fields
spellingShingle DBI model
Inflation
Scalar fields
Chimento, L.P.
Lazkoz, R.
Bridging geometries and potentials in DBI cosmologies
topic_facet DBI model
Inflation
Scalar fields
description We investigate the link between the warp function and the potential in Dirac-Born-Infeld (DBI) power-law cosmologies. We give a prescription to take advantage of the fact that there is always a choice of potential resulting in a constant ratio between pressure and energy density for a given a warp factor. We illustrate the method with several examples, and complete the investigation by showing how symmetries can be used to generate new DBI solutions from existing ones. © 2008 Springer Science+Business Media, LLC.
format JOUR
author Chimento, L.P.
Lazkoz, R.
author_facet Chimento, L.P.
Lazkoz, R.
author_sort Chimento, L.P.
title Bridging geometries and potentials in DBI cosmologies
title_short Bridging geometries and potentials in DBI cosmologies
title_full Bridging geometries and potentials in DBI cosmologies
title_fullStr Bridging geometries and potentials in DBI cosmologies
title_full_unstemmed Bridging geometries and potentials in DBI cosmologies
title_sort bridging geometries and potentials in dbi cosmologies
url http://hdl.handle.net/20.500.12110/paper_00017701_v40_n12_p2543_Chimento
work_keys_str_mv AT chimentolp bridginggeometriesandpotentialsindbicosmologies
AT lazkozr bridginggeometriesandpotentialsindbicosmologies
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