Ultraviolet cutoffs for quantum fields in cosmological spacetimes

Autores
Elias, Mauro Alejandro; Mazzitelli, Francisco Diego
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We analyze critically the renormalization of quantum fields in cosmological spacetimes, using noncovariant ultraviolet cutoffs. We compute explicitly the counterterms necessary to renormalize the semiclassical Einstein equations, using comoving and physical ultraviolet cutoffs. In the first case, the divergences renormalize bare conserved fluids, while in the second case it is necessary to break the covariance of the bare theory. We point out that, in general, the renormalized equations differ from those obtained with covariant methods, even after absorbing the infinities and choosing the renormalized parameters to force the consistency of the renormalized theory. We repeat the analysis for the evolution equation for the mean value of an interacting scalar field.
Fil: Elias, Mauro Alejandro. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
Fil: Mazzitelli, Francisco Diego. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
Materia
Cosmology
General Relativity
Quantum Field Theory
Renormalization
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:11336/53967
Acceder
id CONICETDig_a2daf81546c94435ed59dc0285c44833
oai_identifier_str oai:ri.conicet.gov.ar:11336/53967
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Ultraviolet cutoffs for quantum fields in cosmological spacetimesElias, Mauro AlejandroMazzitelli, Francisco DiegoCosmologyGeneral RelativityQuantum Field TheoryRenormalizationhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We analyze critically the renormalization of quantum fields in cosmological spacetimes, using noncovariant ultraviolet cutoffs. We compute explicitly the counterterms necessary to renormalize the semiclassical Einstein equations, using comoving and physical ultraviolet cutoffs. In the first case, the divergences renormalize bare conserved fluids, while in the second case it is necessary to break the covariance of the bare theory. We point out that, in general, the renormalized equations differ from those obtained with covariant methods, even after absorbing the infinities and choosing the renormalized parameters to force the consistency of the renormalized theory. We repeat the analysis for the evolution equation for the mean value of an interacting scalar field.Fil: Elias, Mauro Alejandro. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; ArgentinaFil: Mazzitelli, Francisco Diego. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; ArgentinaAmerican Physical Society2015-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/53967Elias, Mauro Alejandro; Mazzitelli, Francisco Diego; Ultraviolet cutoffs for quantum fields in cosmological spacetimes; American Physical Society; Physical Review D: Particles, Fields, Gravitation and Cosmology; 91; 12; 6-2015; 1-10; 1240511550-7998CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevD.91.124051info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prd/abstract/10.1103/PhysRevD.91.124051info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:33:16Zoai:ri.conicet.gov.ar:11336/53967instacron: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 10:33:17.118CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Ultraviolet cutoffs for quantum fields in cosmological spacetimes
title Ultraviolet cutoffs for quantum fields in cosmological spacetimes
spellingShingle Ultraviolet cutoffs for quantum fields in cosmological spacetimes
Elias, Mauro Alejandro
Cosmology
General Relativity
Quantum Field Theory
Renormalization
title_short Ultraviolet cutoffs for quantum fields in cosmological spacetimes
title_full Ultraviolet cutoffs for quantum fields in cosmological spacetimes
title_fullStr Ultraviolet cutoffs for quantum fields in cosmological spacetimes
title_full_unstemmed Ultraviolet cutoffs for quantum fields in cosmological spacetimes
title_sort Ultraviolet cutoffs for quantum fields in cosmological spacetimes
dc.creator.none.fl_str_mv Elias, Mauro Alejandro
Mazzitelli, Francisco Diego
author Elias, Mauro Alejandro
author_facet Elias, Mauro Alejandro
Mazzitelli, Francisco Diego
author_role author
author2 Mazzitelli, Francisco Diego
author2_role author
dc.subject.none.fl_str_mv Cosmology
General Relativity
Quantum Field Theory
Renormalization
topic Cosmology
General Relativity
Quantum Field Theory
Renormalization
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 analyze critically the renormalization of quantum fields in cosmological spacetimes, using noncovariant ultraviolet cutoffs. We compute explicitly the counterterms necessary to renormalize the semiclassical Einstein equations, using comoving and physical ultraviolet cutoffs. In the first case, the divergences renormalize bare conserved fluids, while in the second case it is necessary to break the covariance of the bare theory. We point out that, in general, the renormalized equations differ from those obtained with covariant methods, even after absorbing the infinities and choosing the renormalized parameters to force the consistency of the renormalized theory. We repeat the analysis for the evolution equation for the mean value of an interacting scalar field.
Fil: Elias, Mauro Alejandro. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
Fil: Mazzitelli, Francisco Diego. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
description We analyze critically the renormalization of quantum fields in cosmological spacetimes, using noncovariant ultraviolet cutoffs. We compute explicitly the counterterms necessary to renormalize the semiclassical Einstein equations, using comoving and physical ultraviolet cutoffs. In the first case, the divergences renormalize bare conserved fluids, while in the second case it is necessary to break the covariance of the bare theory. We point out that, in general, the renormalized equations differ from those obtained with covariant methods, even after absorbing the infinities and choosing the renormalized parameters to force the consistency of the renormalized theory. We repeat the analysis for the evolution equation for the mean value of an interacting scalar field.
publishDate 2015
dc.date.none.fl_str_mv 2015-06
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/11336/53967
Elias, Mauro Alejandro; Mazzitelli, Francisco Diego; Ultraviolet cutoffs for quantum fields in cosmological spacetimes; American Physical Society; Physical Review D: Particles, Fields, Gravitation and Cosmology; 91; 12; 6-2015; 1-10; 124051
1550-7998
CONICET Digital
CONICET
url http://hdl.handle.net/11336/53967
identifier_str_mv Elias, Mauro Alejandro; Mazzitelli, Francisco Diego; Ultraviolet cutoffs for quantum fields in cosmological spacetimes; American Physical Society; Physical Review D: Particles, Fields, Gravitation and Cosmology; 91; 12; 6-2015; 1-10; 124051
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.91.124051
info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prd/abstract/10.1103/PhysRevD.91.124051
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
_version_ 1844614347972673536
score 13.070432

Publicaciones similares