Long distance behavior of O(N)-model correlators in de Sitter space and the resummation of secular terms

Autores
Lopez Nacir, Diana Laura; Mazzitelli, Francisco Diego; Trombetta, Leonardo Giuliano
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We analyze the long distance behavior of the two-point functions for an interacting scalar O(N) model in de Sitter spacetime. Following our previous work, this behavior is analyzed by analytic continuation of the Euclidean correlators, which are computed by treating the homogeneous zero mode exactly and using a partial resummation of the interactions between the zero and the non-zero modes. We focus on massless fields and present an alternative derivation of our method, which involves a double expansion in 1/N and the coupling constant of the theory. This derivation is simpler than the previous one and can be directly extended for fields with negative squared-mass. We extend our previous results by computing the long wavelength limit of the two-point functions at next-to-leading order in 1/N and at leading order in the coupling constant, which involves a further resummation of Feynman diagrams (needed when the two-point functions are analitically continued). We prove that, after this extra resummation, the two-point functions vanish in the long distance limit.
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
Fil: Mazzitelli, Francisco Diego. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
Fil: Trombetta, Leonardo Giuliano. Scuola Normale Superiore; Italia. Instituto Nazionale de Física Nucleare Sezione di Roma tor Vergata; Italia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
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/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/96823
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Long distance behavior of O(N)-model correlators in de Sitter space and the resummation of secular termsLopez 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 long distance behavior of the two-point functions for an interacting scalar O(N) model in de Sitter spacetime. Following our previous work, this behavior is analyzed by analytic continuation of the Euclidean correlators, which are computed by treating the homogeneous zero mode exactly and using a partial resummation of the interactions between the zero and the non-zero modes. We focus on massless fields and present an alternative derivation of our method, which involves a double expansion in 1/N and the coupling constant of the theory. This derivation is simpler than the previous one and can be directly extended for fields with negative squared-mass. We extend our previous results by computing the long wavelength limit of the two-point functions at next-to-leading order in 1/N and at leading order in the coupling constant, which involves a further resummation of Feynman diagrams (needed when the two-point functions are analitically continued). We prove that, after this extra resummation, the two-point functions vanish in the long distance limit.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; ArgentinaFil: Mazzitelli, Francisco Diego. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; ArgentinaFil: Trombetta, Leonardo Giuliano. Scuola Normale Superiore; Italia. Instituto Nazionale de Física Nucleare Sezione di Roma tor Vergata; Italia. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaSpringer2018-10info: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/11336/96823Lopez Nacir, Diana Laura; Mazzitelli, Francisco Diego; Trombetta, Leonardo Giuliano; Long distance behavior of O(N)-model correlators in de Sitter space and the resummation of secular terms; Springer; Journal of High Energy Physics; 2018; 10; 10-2018; 1-341126-6708CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2FJHEP10%282018%29016info:eu-repo/semantics/altIdentifier/doi/10.1007/JHEP10(2018)016info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:21:50Zoai:ri.conicet.gov.ar:11336/96823instacron: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:34982025-10-15 14:21:50.423CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Long distance behavior of O(N)-model correlators in de Sitter space and the resummation of secular terms
title Long distance behavior of O(N)-model correlators in de Sitter space and the resummation of secular terms
spellingShingle Long distance behavior of O(N)-model correlators in de Sitter space and the resummation of secular terms
Lopez Nacir, Diana Laura
COSMOLOGY OF THEORIES BEYOND THE SM
NONPERTURBATIVE EFFECTS
SPACE-TIME SYMMETRIES
title_short Long distance behavior of O(N)-model correlators in de Sitter space and the resummation of secular terms
title_full Long distance behavior of O(N)-model correlators in de Sitter space and the resummation of secular terms
title_fullStr Long distance behavior of O(N)-model correlators in de Sitter space and the resummation of secular terms
title_full_unstemmed Long distance behavior of O(N)-model correlators in de Sitter space and the resummation of secular terms
title_sort Long distance behavior of O(N)-model correlators in de Sitter space and the resummation of secular terms
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 long distance behavior of the two-point functions for an interacting scalar O(N) model in de Sitter spacetime. Following our previous work, this behavior is analyzed by analytic continuation of the Euclidean correlators, which are computed by treating the homogeneous zero mode exactly and using a partial resummation of the interactions between the zero and the non-zero modes. We focus on massless fields and present an alternative derivation of our method, which involves a double expansion in 1/N and the coupling constant of the theory. This derivation is simpler than the previous one and can be directly extended for fields with negative squared-mass. We extend our previous results by computing the long wavelength limit of the two-point functions at next-to-leading order in 1/N and at leading order in the coupling constant, which involves a further resummation of Feynman diagrams (needed when the two-point functions are analitically continued). We prove that, after this extra resummation, the two-point functions vanish in the long distance limit.
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
Fil: Mazzitelli, Francisco Diego. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
Fil: Trombetta, Leonardo Giuliano. Scuola Normale Superiore; Italia. Instituto Nazionale de Física Nucleare Sezione di Roma tor Vergata; Italia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description We analyze the long distance behavior of the two-point functions for an interacting scalar O(N) model in de Sitter spacetime. Following our previous work, this behavior is analyzed by analytic continuation of the Euclidean correlators, which are computed by treating the homogeneous zero mode exactly and using a partial resummation of the interactions between the zero and the non-zero modes. We focus on massless fields and present an alternative derivation of our method, which involves a double expansion in 1/N and the coupling constant of the theory. This derivation is simpler than the previous one and can be directly extended for fields with negative squared-mass. We extend our previous results by computing the long wavelength limit of the two-point functions at next-to-leading order in 1/N and at leading order in the coupling constant, which involves a further resummation of Feynman diagrams (needed when the two-point functions are analitically continued). We prove that, after this extra resummation, the two-point functions vanish in the long distance limit.
publishDate 2018
dc.date.none.fl_str_mv 2018-10
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/11336/96823
Lopez Nacir, Diana Laura; Mazzitelli, Francisco Diego; Trombetta, Leonardo Giuliano; Long distance behavior of O(N)-model correlators in de Sitter space and the resummation of secular terms; Springer; Journal of High Energy Physics; 2018; 10; 10-2018; 1-34
1126-6708
CONICET Digital
CONICET
url http://hdl.handle.net/11336/96823
identifier_str_mv Lopez Nacir, Diana Laura; Mazzitelli, Francisco Diego; Trombetta, Leonardo Giuliano; Long distance behavior of O(N)-model correlators in de Sitter space and the resummation of secular terms; Springer; Journal of High Energy Physics; 2018; 10; 10-2018; 1-34
1126-6708
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://link.springer.com/article/10.1007%2FJHEP10%282018%29016
info:eu-repo/semantics/altIdentifier/doi/10.1007/JHEP10(2018)016
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
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 13.22299

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