To the sphere and back again: De Sitter infrared correlators at NTLO in 1/N

Autores
Lopez Nacir, Diana Laura; Mazzitelli, Francisco Diego; Trombetta, Leonardo Giuliano
Año de publicación
2019
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We analyze the infrared behavior of the two and four-point functions for the massless O(N) model in Lorentzian de Sitter spacetime, using the 1/N expansion. Our approach is based in the study of the Schwinger-Dyson equations on the sphere (Euclidean de Sitter space), using the fact that the infrared behavior in Lorentzian spacetime is determined by the pole structure of the Euclidean correlation functions. We compute the two-point function up to the NTLO in 1/N , and show that in the infrared it behaves as the superposition of two massive free propagators with effective masses of the same order, but not equal to, the dynamical mass mdyn. We compare our results with those obtained using other approaches, and find that they are equivalent but retrieved in a considerably simpler way. We also discuss the infrared behavior of the equal-times four-point functions.
Fil: Lopez Nacir, Diana Laura. 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. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina
Fil: Mazzitelli, Francisco Diego. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Trombetta, Leonardo Giuliano. Scuola Normale Superiore Di Pisa; Italia. Istituto Nazionale Di Fisica Nucleare; Italia
Materia
COSMOLOGY OF THEORIES BEYOND THE SM
NONPERTURBATIVE EFFECTS
SPACE-TIME SYMMETRIES
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:11336/147626
Acceder
id CONICETDig_fb1caa286d00c3aee1908fb0eab0ccd3
oai_identifier_str oai:ri.conicet.gov.ar:11336/147626
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling To the sphere and back again: De Sitter infrared correlators at NTLO in 1/NLopez Nacir, Diana LauraMazzitelli, Francisco DiegoTrombetta, Leonardo GiulianoCOSMOLOGY OF THEORIES BEYOND THE SMNONPERTURBATIVE EFFECTSSPACE-TIME SYMMETRIEShttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We analyze the infrared behavior of the two and four-point functions for the massless O(N) model in Lorentzian de Sitter spacetime, using the 1/N expansion. Our approach is based in the study of the Schwinger-Dyson equations on the sphere (Euclidean de Sitter space), using the fact that the infrared behavior in Lorentzian spacetime is determined by the pole structure of the Euclidean correlation functions. We compute the two-point function up to the NTLO in 1/N , and show that in the infrared it behaves as the superposition of two massive free propagators with effective masses of the same order, but not equal to, the dynamical mass mdyn. We compare our results with those obtained using other approaches, and find that they are equivalent but retrieved in a considerably simpler way. We also discuss the infrared behavior of the equal-times four-point functions.Fil: Lopez Nacir, Diana Laura. 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. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; ArgentinaFil: Mazzitelli, Francisco Diego. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Trombetta, Leonardo Giuliano. Scuola Normale Superiore Di Pisa; Italia. Istituto Nazionale Di Fisica Nucleare; ItaliaSpringer Verlag Berlín2019-08-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/147626Lopez Nacir, Diana Laura; Mazzitelli, Francisco Diego; Trombetta, Leonardo Giuliano; To the sphere and back again: De Sitter infrared correlators at NTLO in 1/N; Springer Verlag Berlín; Journal of High Energy Physics; 2019; 8; 8-8-2019; 1-131029-8479CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1007/JHEP08(2019)052info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2FJHEP08%282019%29052info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1905.03665info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:32:45Zoai:ri.conicet.gov.ar:11336/147626instacron: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 09:32:46.018CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv To the sphere and back again: De Sitter infrared correlators at NTLO in 1/N
title To the sphere and back again: De Sitter infrared correlators at NTLO in 1/N
spellingShingle To the sphere and back again: De Sitter infrared correlators at NTLO in 1/N
Lopez Nacir, Diana Laura
COSMOLOGY OF THEORIES BEYOND THE SM
NONPERTURBATIVE EFFECTS
SPACE-TIME SYMMETRIES
title_short To the sphere and back again: De Sitter infrared correlators at NTLO in 1/N
title_full To the sphere and back again: De Sitter infrared correlators at NTLO in 1/N
title_fullStr To the sphere and back again: De Sitter infrared correlators at NTLO in 1/N
title_full_unstemmed To the sphere and back again: De Sitter infrared correlators at NTLO in 1/N
title_sort To the sphere and back again: De Sitter infrared correlators at NTLO in 1/N
dc.creator.none.fl_str_mv Lopez Nacir, Diana Laura
Mazzitelli, Francisco Diego
Trombetta, Leonardo Giuliano
author Lopez Nacir, Diana Laura
author_facet Lopez Nacir, Diana Laura
Mazzitelli, Francisco Diego
Trombetta, Leonardo Giuliano
author_role author
author2 Mazzitelli, Francisco Diego
Trombetta, Leonardo Giuliano
author2_role author
author
dc.subject.none.fl_str_mv COSMOLOGY OF THEORIES BEYOND THE SM
NONPERTURBATIVE EFFECTS
SPACE-TIME SYMMETRIES
topic COSMOLOGY OF THEORIES BEYOND THE SM
NONPERTURBATIVE EFFECTS
SPACE-TIME SYMMETRIES
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 the infrared behavior of the two and four-point functions for the massless O(N) model in Lorentzian de Sitter spacetime, using the 1/N expansion. Our approach is based in the study of the Schwinger-Dyson equations on the sphere (Euclidean de Sitter space), using the fact that the infrared behavior in Lorentzian spacetime is determined by the pole structure of the Euclidean correlation functions. We compute the two-point function up to the NTLO in 1/N , and show that in the infrared it behaves as the superposition of two massive free propagators with effective masses of the same order, but not equal to, the dynamical mass mdyn. We compare our results with those obtained using other approaches, and find that they are equivalent but retrieved in a considerably simpler way. We also discuss the infrared behavior of the equal-times four-point functions.
Fil: Lopez Nacir, Diana Laura. 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. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina
Fil: Mazzitelli, Francisco Diego. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Trombetta, Leonardo Giuliano. Scuola Normale Superiore Di Pisa; Italia. Istituto Nazionale Di Fisica Nucleare; Italia
description We analyze the infrared behavior of the two and four-point functions for the massless O(N) model in Lorentzian de Sitter spacetime, using the 1/N expansion. Our approach is based in the study of the Schwinger-Dyson equations on the sphere (Euclidean de Sitter space), using the fact that the infrared behavior in Lorentzian spacetime is determined by the pole structure of the Euclidean correlation functions. We compute the two-point function up to the NTLO in 1/N , and show that in the infrared it behaves as the superposition of two massive free propagators with effective masses of the same order, but not equal to, the dynamical mass mdyn. We compare our results with those obtained using other approaches, and find that they are equivalent but retrieved in a considerably simpler way. We also discuss the infrared behavior of the equal-times four-point functions.
publishDate 2019
dc.date.none.fl_str_mv 2019-08-08
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/11336/147626
Lopez Nacir, Diana Laura; Mazzitelli, Francisco Diego; Trombetta, Leonardo Giuliano; To the sphere and back again: De Sitter infrared correlators at NTLO in 1/N; Springer Verlag Berlín; Journal of High Energy Physics; 2019; 8; 8-8-2019; 1-13
1029-8479
CONICET Digital
CONICET
url http://hdl.handle.net/11336/147626
identifier_str_mv Lopez Nacir, Diana Laura; Mazzitelli, Francisco Diego; Trombetta, Leonardo Giuliano; To the sphere and back again: De Sitter infrared correlators at NTLO in 1/N; Springer Verlag Berlín; Journal of High Energy Physics; 2019; 8; 8-8-2019; 1-13
1029-8479
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1007/JHEP08(2019)052
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2FJHEP08%282019%29052
info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1905.03665
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
application/pdf
dc.publisher.none.fl_str_mv Springer Verlag Berlín
publisher.none.fl_str_mv Springer Verlag Berlín
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_ 1844613001129230336
score 13.070432

Publicaciones similares