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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/74080
Ver los metadatos del registro completo
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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 Técnicas2025-09-29T10:37:13Zoai: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:34982025-09-29 10:37:13.887CONICET 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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1844614392132403200 |
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13.070432 |