Crossing the phantom divide without phantom matter

Autores
Chimento, Luis Pascual; Lazkoz Ruth; Maartens Roy; Quiros Israel
Año de publicación
2006
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A class of braneworld models can lead to phantom-like acceleration of the late universe, but without the need for any phantom matter. In the simplest models, the universe contains only cold dark matter and a cosmological constant. We generalize these models by introducing a quintessence field. The new feature in our models is that quintessence leads to a crossing of the phantom divide, w = -1. This is a purely gravitational effect, and there is no phantom instability. Furthermore, the Hubble parameter is always decreasing, and there is no big rip singularity in the future. © IOP Publishing Ltd.
Fil: Chimento, Luis Pascual. 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
Fil: Lazkoz Ruth. Universidad del Pais Vasco - Euskal Herriko Unibertsitatea, Campus Bizkaia;
Fil: Maartens Roy. University Of Portsmouth;
Fil: Quiros Israel. Universidad Central Marta Abreu de Las Villas; Cuba. University Of Portsmouth;
Materia
Cosmological Applications Of Theories with Extra Dimensions
Dark Energy Theory
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:11336/73308

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network_name_str CONICET Digital (CONICET)
spelling Crossing the phantom divide without phantom matterChimento, Luis PascualLazkoz RuthMaartens RoyQuiros IsraelCosmological Applications Of Theories with Extra DimensionsDark Energy Theoryhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1A class of braneworld models can lead to phantom-like acceleration of the late universe, but without the need for any phantom matter. In the simplest models, the universe contains only cold dark matter and a cosmological constant. We generalize these models by introducing a quintessence field. The new feature in our models is that quintessence leads to a crossing of the phantom divide, w = -1. This is a purely gravitational effect, and there is no phantom instability. Furthermore, the Hubble parameter is always decreasing, and there is no big rip singularity in the future. © IOP Publishing Ltd.Fil: Chimento, Luis Pascual. 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; ArgentinaFil: Lazkoz Ruth. Universidad del Pais Vasco - Euskal Herriko Unibertsitatea, Campus Bizkaia;Fil: Maartens Roy. University Of Portsmouth;Fil: Quiros Israel. Universidad Central Marta Abreu de Las Villas; Cuba. University Of Portsmouth;IOP Publishing2006-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/73308Chimento, Luis Pascual; Lazkoz Ruth; Maartens Roy; Quiros Israel; Crossing the phantom divide without phantom matter; IOP Publishing; Journal of Cosmology and Astroparticle Physics; 9; 9; 9-2006; 1-101475-7516CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1088/1475-7516/2006/09/004info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:53:26Zoai:ri.conicet.gov.ar:11336/73308instacron: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 09:53:26.617CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Crossing the phantom divide without phantom matter
title Crossing the phantom divide without phantom matter
spellingShingle Crossing the phantom divide without phantom matter
Chimento, Luis Pascual
Cosmological Applications Of Theories with Extra Dimensions
Dark Energy Theory
title_short Crossing the phantom divide without phantom matter
title_full Crossing the phantom divide without phantom matter
title_fullStr Crossing the phantom divide without phantom matter
title_full_unstemmed Crossing the phantom divide without phantom matter
title_sort Crossing the phantom divide without phantom matter
dc.creator.none.fl_str_mv Chimento, Luis Pascual
Lazkoz Ruth
Maartens Roy
Quiros Israel
author Chimento, Luis Pascual
author_facet Chimento, Luis Pascual
Lazkoz Ruth
Maartens Roy
Quiros Israel
author_role author
author2 Lazkoz Ruth
Maartens Roy
Quiros Israel
author2_role author
author
author
dc.subject.none.fl_str_mv Cosmological Applications Of Theories with Extra Dimensions
Dark Energy Theory
topic Cosmological Applications Of Theories with Extra Dimensions
Dark Energy Theory
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv A class of braneworld models can lead to phantom-like acceleration of the late universe, but without the need for any phantom matter. In the simplest models, the universe contains only cold dark matter and a cosmological constant. We generalize these models by introducing a quintessence field. The new feature in our models is that quintessence leads to a crossing of the phantom divide, w = -1. This is a purely gravitational effect, and there is no phantom instability. Furthermore, the Hubble parameter is always decreasing, and there is no big rip singularity in the future. © IOP Publishing Ltd.
Fil: Chimento, Luis Pascual. 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
Fil: Lazkoz Ruth. Universidad del Pais Vasco - Euskal Herriko Unibertsitatea, Campus Bizkaia;
Fil: Maartens Roy. University Of Portsmouth;
Fil: Quiros Israel. Universidad Central Marta Abreu de Las Villas; Cuba. University Of Portsmouth;
description A class of braneworld models can lead to phantom-like acceleration of the late universe, but without the need for any phantom matter. In the simplest models, the universe contains only cold dark matter and a cosmological constant. We generalize these models by introducing a quintessence field. The new feature in our models is that quintessence leads to a crossing of the phantom divide, w = -1. This is a purely gravitational effect, and there is no phantom instability. Furthermore, the Hubble parameter is always decreasing, and there is no big rip singularity in the future. © IOP Publishing Ltd.
publishDate 2006
dc.date.none.fl_str_mv 2006-09
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/11336/73308
Chimento, Luis Pascual; Lazkoz Ruth; Maartens Roy; Quiros Israel; Crossing the phantom divide without phantom matter; IOP Publishing; Journal of Cosmology and Astroparticle Physics; 9; 9; 9-2006; 1-10
1475-7516
CONICET Digital
CONICET
url http://hdl.handle.net/11336/73308
identifier_str_mv Chimento, Luis Pascual; Lazkoz Ruth; Maartens Roy; Quiros Israel; Crossing the phantom divide without phantom matter; IOP Publishing; Journal of Cosmology and Astroparticle Physics; 9; 9; 9-2006; 1-10
1475-7516
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1088/1475-7516/2006/09/004
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 IOP Publishing
publisher.none.fl_str_mv IOP Publishing
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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