Exact model of conformal quintessence

Autores
Chimento, Luis Pascual; Jakubi, Alejandro S.; Pavón, Diego
Año de publicación
2004
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A nonminimally coupled quintessence model is investigated and the conditions for a stationary solution to the coincidence problem are obtained. For a conformally coupled scalar field and dissipative matter, a general solution possessing late acceleration is found. It fits rather well the high redshift supernovae data and gives a good prediction of the age of the Universe. Likewise, the cold dark matter component dominates the cosmological perturbations at late times albeit they decrease with expansion. © 2004 The American Physical Society.
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: Jakubi, Alejandro S.. Universidad de Buenos Aires; Argentina
Fil: Pavón, Diego. Universitat Autònoma de Barcelona; España
Materia
Conformal Scalar Field
Dissipative Fluid
Accelerated Expansion
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:11336/74080
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Exact model of conformal quintessenceChimento, Luis PascualJakubi, Alejandro S.Pavón, DiegoConformal Scalar FieldDissipative FluidAccelerated Expansionhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1A nonminimally coupled quintessence model is investigated and the conditions for a stationary solution to the coincidence problem are obtained. For a conformally coupled scalar field and dissipative matter, a general solution possessing late acceleration is found. It fits rather well the high redshift supernovae data and gives a good prediction of the age of the Universe. Likewise, the cold dark matter component dominates the cosmological perturbations at late times albeit they decrease with expansion. © 2004 The American Physical Society.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: Jakubi, Alejandro S.. Universidad de Buenos Aires; ArgentinaFil: Pavón, Diego. Universitat Autònoma de Barcelona; EspañaAmerican Physical Society2004-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/74080Chimento, Luis Pascual; Jakubi, Alejandro S.; Pavón, Diego; Exact model of conformal quintessence; American Physical Society; Physical Review D: Particles, Fields, Gravitation and Cosmology; 69; 8; 12-2004; 1-71550-7998CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevD.69.083511info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T12:09:21Zoai:ri.conicet.gov.ar:11336/74080instacron: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:34982025-10-22 12:09:21.648CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Exact model of conformal quintessence
title Exact model of conformal quintessence
spellingShingle Exact model of conformal quintessence
Chimento, Luis Pascual
Conformal Scalar Field
Dissipative Fluid
Accelerated Expansion
title_short Exact model of conformal quintessence
title_full Exact model of conformal quintessence
title_fullStr Exact model of conformal quintessence
title_full_unstemmed Exact model of conformal quintessence
title_sort Exact model of conformal quintessence
dc.creator.none.fl_str_mv Chimento, Luis Pascual
Jakubi, Alejandro S.
Pavón, Diego
author Chimento, Luis Pascual
author_facet Chimento, Luis Pascual
Jakubi, Alejandro S.
Pavón, Diego
author_role author
author2 Jakubi, Alejandro S.
Pavón, Diego
author2_role author
author
dc.subject.none.fl_str_mv Conformal Scalar Field
Dissipative Fluid
Accelerated Expansion
topic Conformal Scalar Field
Dissipative Fluid
Accelerated Expansion
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 nonminimally coupled quintessence model is investigated and the conditions for a stationary solution to the coincidence problem are obtained. For a conformally coupled scalar field and dissipative matter, a general solution possessing late acceleration is found. It fits rather well the high redshift supernovae data and gives a good prediction of the age of the Universe. Likewise, the cold dark matter component dominates the cosmological perturbations at late times albeit they decrease with expansion. © 2004 The American Physical Society.
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: Jakubi, Alejandro S.. Universidad de Buenos Aires; Argentina
Fil: Pavón, Diego. Universitat Autònoma de Barcelona; España
description A nonminimally coupled quintessence model is investigated and the conditions for a stationary solution to the coincidence problem are obtained. For a conformally coupled scalar field and dissipative matter, a general solution possessing late acceleration is found. It fits rather well the high redshift supernovae data and gives a good prediction of the age of the Universe. Likewise, the cold dark matter component dominates the cosmological perturbations at late times albeit they decrease with expansion. © 2004 The American Physical Society.
publishDate 2004
dc.date.none.fl_str_mv 2004-12
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/11336/74080
Chimento, Luis Pascual; Jakubi, Alejandro S.; Pavón, Diego; Exact model of conformal quintessence; American Physical Society; Physical Review D: Particles, Fields, Gravitation and Cosmology; 69; 8; 12-2004; 1-7
1550-7998
CONICET Digital
CONICET
url http://hdl.handle.net/11336/74080
identifier_str_mv Chimento, Luis Pascual; Jakubi, Alejandro S.; Pavón, Diego; Exact model of conformal quintessence; American Physical Society; Physical Review D: Particles, Fields, Gravitation and Cosmology; 69; 8; 12-2004; 1-7
1550-7998
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevD.69.083511
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 American Physical Society
publisher.none.fl_str_mv American Physical Society
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 12.982451

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