Crossing the phantom divide with k-essence in braneworlds

Autores
Chimento, Luis Pascual; Forte, Mónica; Richarte, Martín Gustavo
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We study a flat three-brane in the presence of a linear k field with nonzero cosmological constant Λ4. In this model the crossing of the phantom divide (PD) occurs when the k-essence energy density becomes negative. We show that in the high energy regime the effective equation of state has a resemblance of a modified Chaplygin gas while in the low energy regime it becomes linear. We find a scale factor that begins from a singularity and evolves to a de Sitter stable stage while other solutions have a super-accelerated regime and end with a big rip. We use the energy conditions to show when the effective equation of state of the brane-universe crosses the PD. © 2010 World Scientific Publishing Company.
Fil: Chimento, Luis Pascual. Universidad del Pais Vasco - Euskal Herriko Unibertsitatea, Campus Bizkaia; España
Fil: Forte, Mónica. Universidad de Buenos Aires; Argentina
Fil: Richarte, Martín Gustavo. Universidad de Buenos Aires; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
Materia
Braneworlds
K-Essence
Phantom Divide
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/59104
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Crossing the phantom divide with k-essence in braneworldsChimento, Luis PascualForte, MónicaRicharte, Martín GustavoBraneworldsK-EssencePhantom Dividehttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We study a flat three-brane in the presence of a linear k field with nonzero cosmological constant Λ4. In this model the crossing of the phantom divide (PD) occurs when the k-essence energy density becomes negative. We show that in the high energy regime the effective equation of state has a resemblance of a modified Chaplygin gas while in the low energy regime it becomes linear. We find a scale factor that begins from a singularity and evolves to a de Sitter stable stage while other solutions have a super-accelerated regime and end with a big rip. We use the energy conditions to show when the effective equation of state of the brane-universe crosses the PD. © 2010 World Scientific Publishing Company.Fil: Chimento, Luis Pascual. Universidad del Pais Vasco - Euskal Herriko Unibertsitatea, Campus Bizkaia; EspañaFil: Forte, Mónica. Universidad de Buenos Aires; ArgentinaFil: Richarte, Martín Gustavo. Universidad de Buenos Aires; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; ArgentinaWorld Scientific2010-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/59104Chimento, Luis Pascual; Forte, Mónica; Richarte, Martín Gustavo; Crossing the phantom divide with k-essence in braneworlds; World Scientific; Modern Physics Letters A: Particles and Fields; Gravitation; Cosmology and Nuclear Physics; 25; 29; 6-2010; 2469-24810217-7323CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1142/S0217732310033797info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:55:29Zoai:ri.conicet.gov.ar:11336/59104instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 09:55:29.657CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Crossing the phantom divide with k-essence in braneworlds
title Crossing the phantom divide with k-essence in braneworlds
spellingShingle Crossing the phantom divide with k-essence in braneworlds
Chimento, Luis Pascual
Braneworlds
K-Essence
Phantom Divide
title_short Crossing the phantom divide with k-essence in braneworlds
title_full Crossing the phantom divide with k-essence in braneworlds
title_fullStr Crossing the phantom divide with k-essence in braneworlds
title_full_unstemmed Crossing the phantom divide with k-essence in braneworlds
title_sort Crossing the phantom divide with k-essence in braneworlds
dc.creator.none.fl_str_mv Chimento, Luis Pascual
Forte, Mónica
Richarte, Martín Gustavo
author Chimento, Luis Pascual
author_facet Chimento, Luis Pascual
Forte, Mónica
Richarte, Martín Gustavo
author_role author
author2 Forte, Mónica
Richarte, Martín Gustavo
author2_role author
author
dc.subject.none.fl_str_mv Braneworlds
K-Essence
Phantom Divide
topic Braneworlds
K-Essence
Phantom Divide
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We study a flat three-brane in the presence of a linear k field with nonzero cosmological constant Λ4. In this model the crossing of the phantom divide (PD) occurs when the k-essence energy density becomes negative. We show that in the high energy regime the effective equation of state has a resemblance of a modified Chaplygin gas while in the low energy regime it becomes linear. We find a scale factor that begins from a singularity and evolves to a de Sitter stable stage while other solutions have a super-accelerated regime and end with a big rip. We use the energy conditions to show when the effective equation of state of the brane-universe crosses the PD. © 2010 World Scientific Publishing Company.
Fil: Chimento, Luis Pascual. Universidad del Pais Vasco - Euskal Herriko Unibertsitatea, Campus Bizkaia; España
Fil: Forte, Mónica. Universidad de Buenos Aires; Argentina
Fil: Richarte, Martín Gustavo. Universidad de Buenos Aires; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
description We study a flat three-brane in the presence of a linear k field with nonzero cosmological constant Λ4. In this model the crossing of the phantom divide (PD) occurs when the k-essence energy density becomes negative. We show that in the high energy regime the effective equation of state has a resemblance of a modified Chaplygin gas while in the low energy regime it becomes linear. We find a scale factor that begins from a singularity and evolves to a de Sitter stable stage while other solutions have a super-accelerated regime and end with a big rip. We use the energy conditions to show when the effective equation of state of the brane-universe crosses the PD. © 2010 World Scientific Publishing Company.
publishDate 2010
dc.date.none.fl_str_mv 2010-06
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/59104
Chimento, Luis Pascual; Forte, Mónica; Richarte, Martín Gustavo; Crossing the phantom divide with k-essence in braneworlds; World Scientific; Modern Physics Letters A: Particles and Fields; Gravitation; Cosmology and Nuclear Physics; 25; 29; 6-2010; 2469-2481
0217-7323
CONICET Digital
CONICET
url http://hdl.handle.net/11336/59104
identifier_str_mv Chimento, Luis Pascual; Forte, Mónica; Richarte, Martín Gustavo; Crossing the phantom divide with k-essence in braneworlds; World Scientific; Modern Physics Letters A: Particles and Fields; Gravitation; Cosmology and Nuclear Physics; 25; 29; 6-2010; 2469-2481
0217-7323
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1142/S0217732310033797
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv World Scientific
publisher.none.fl_str_mv World Scientific
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.13397

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