Gauge invariant fluctuations of the metric during inflation from a new scalar-tensor Weyl-integrable gravity model

Autores
Pucheu, Maria Laura; Romero, C.; Bellini, Mauricio; Madriz Aguilar, José Edgar
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We investigate gauge invariant scalar fluctuations of the metric during inflation in a nonperturbative formalism in the framework of a recently formulated scalar-tensor theory of gravity, in which the geometry of space-time is that of a Weyl integrable manifold. We show that in this scenario the Weyl scalar field can play the role of the inflaton field. As an application of the theory, we examine the case of a power-law inflation. In this case, the quasi-scale invariance of the spectrum for scalar fluctuations of the metric is achieved for determined values of the parameter ω of the scalar-tensor theory. We stress the fact that in our formalism the physical inflaton field has a purely geometrical origin.
Fil: Pucheu, Maria Laura. Universidade Federal da Paraíba; Brasil
Fil: Romero, C.. Universidade Federal da Paraíba; Brasil
Fil: Bellini, Mauricio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Físicas de Mar del Plata. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Físicas de Mar del Plata; Argentina
Fil: Madriz Aguilar, José Edgar. Universidad de Guadalajara; México
Materia
COSMOLOGY
INFLATION
GAUGE-INVARIANCE
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:11336/100888
Acceder
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spelling Gauge invariant fluctuations of the metric during inflation from a new scalar-tensor Weyl-integrable gravity modelPucheu, Maria LauraRomero, C.Bellini, MauricioMadriz Aguilar, José EdgarCOSMOLOGYINFLATIONGAUGE-INVARIANCEhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We investigate gauge invariant scalar fluctuations of the metric during inflation in a nonperturbative formalism in the framework of a recently formulated scalar-tensor theory of gravity, in which the geometry of space-time is that of a Weyl integrable manifold. We show that in this scenario the Weyl scalar field can play the role of the inflaton field. As an application of the theory, we examine the case of a power-law inflation. In this case, the quasi-scale invariance of the spectrum for scalar fluctuations of the metric is achieved for determined values of the parameter ω of the scalar-tensor theory. We stress the fact that in our formalism the physical inflaton field has a purely geometrical origin.Fil: Pucheu, Maria Laura. Universidade Federal da Paraíba; BrasilFil: Romero, C.. Universidade Federal da Paraíba; BrasilFil: Bellini, Mauricio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Físicas de Mar del Plata. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Físicas de Mar del Plata; ArgentinaFil: Madriz Aguilar, José Edgar. Universidad de Guadalajara; MéxicoAmerican Physical Society2016-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/100888Pucheu, Maria Laura; Romero, C.; Bellini, Mauricio; Madriz Aguilar, José Edgar; Gauge invariant fluctuations of the metric during inflation from a new scalar-tensor Weyl-integrable gravity model; American Physical Society; Physical Review D; 94; 6; 9-2016; 64075-640810556-28212470-0029CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prd/abstract/10.1103/PhysRevD.94.064075info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevD.94.064075info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:21:31Zoai:ri.conicet.gov.ar:11336/100888instacron: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 10:21:31.628CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Gauge invariant fluctuations of the metric during inflation from a new scalar-tensor Weyl-integrable gravity model
title Gauge invariant fluctuations of the metric during inflation from a new scalar-tensor Weyl-integrable gravity model
spellingShingle Gauge invariant fluctuations of the metric during inflation from a new scalar-tensor Weyl-integrable gravity model
Pucheu, Maria Laura
COSMOLOGY
INFLATION
GAUGE-INVARIANCE
title_short Gauge invariant fluctuations of the metric during inflation from a new scalar-tensor Weyl-integrable gravity model
title_full Gauge invariant fluctuations of the metric during inflation from a new scalar-tensor Weyl-integrable gravity model
title_fullStr Gauge invariant fluctuations of the metric during inflation from a new scalar-tensor Weyl-integrable gravity model
title_full_unstemmed Gauge invariant fluctuations of the metric during inflation from a new scalar-tensor Weyl-integrable gravity model
title_sort Gauge invariant fluctuations of the metric during inflation from a new scalar-tensor Weyl-integrable gravity model
dc.creator.none.fl_str_mv Pucheu, Maria Laura
Romero, C.
Bellini, Mauricio
Madriz Aguilar, José Edgar
author Pucheu, Maria Laura
author_facet Pucheu, Maria Laura
Romero, C.
Bellini, Mauricio
Madriz Aguilar, José Edgar
author_role author
author2 Romero, C.
Bellini, Mauricio
Madriz Aguilar, José Edgar
author2_role author
author
author
dc.subject.none.fl_str_mv COSMOLOGY
INFLATION
GAUGE-INVARIANCE
topic COSMOLOGY
INFLATION
GAUGE-INVARIANCE
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 investigate gauge invariant scalar fluctuations of the metric during inflation in a nonperturbative formalism in the framework of a recently formulated scalar-tensor theory of gravity, in which the geometry of space-time is that of a Weyl integrable manifold. We show that in this scenario the Weyl scalar field can play the role of the inflaton field. As an application of the theory, we examine the case of a power-law inflation. In this case, the quasi-scale invariance of the spectrum for scalar fluctuations of the metric is achieved for determined values of the parameter ω of the scalar-tensor theory. We stress the fact that in our formalism the physical inflaton field has a purely geometrical origin.
Fil: Pucheu, Maria Laura. Universidade Federal da Paraíba; Brasil
Fil: Romero, C.. Universidade Federal da Paraíba; Brasil
Fil: Bellini, Mauricio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Físicas de Mar del Plata. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Físicas de Mar del Plata; Argentina
Fil: Madriz Aguilar, José Edgar. Universidad de Guadalajara; México
description We investigate gauge invariant scalar fluctuations of the metric during inflation in a nonperturbative formalism in the framework of a recently formulated scalar-tensor theory of gravity, in which the geometry of space-time is that of a Weyl integrable manifold. We show that in this scenario the Weyl scalar field can play the role of the inflaton field. As an application of the theory, we examine the case of a power-law inflation. In this case, the quasi-scale invariance of the spectrum for scalar fluctuations of the metric is achieved for determined values of the parameter ω of the scalar-tensor theory. We stress the fact that in our formalism the physical inflaton field has a purely geometrical origin.
publishDate 2016
dc.date.none.fl_str_mv 2016-09
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/11336/100888
Pucheu, Maria Laura; Romero, C.; Bellini, Mauricio; Madriz Aguilar, José Edgar; Gauge invariant fluctuations of the metric during inflation from a new scalar-tensor Weyl-integrable gravity model; American Physical Society; Physical Review D; 94; 6; 9-2016; 64075-64081
0556-2821
2470-0029
CONICET Digital
CONICET
url http://hdl.handle.net/11336/100888
identifier_str_mv Pucheu, Maria Laura; Romero, C.; Bellini, Mauricio; Madriz Aguilar, José Edgar; Gauge invariant fluctuations of the metric during inflation from a new scalar-tensor Weyl-integrable gravity model; American Physical Society; Physical Review D; 94; 6; 9-2016; 64075-64081
0556-2821
2470-0029
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prd/abstract/10.1103/PhysRevD.94.064075
info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevD.94.064075
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 13.070432

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