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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/96823
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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 Técnicas2025-09-29T09:33:41Zoai: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:34982025-09-29 09:33:42.027CONICET 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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1844613036872040448 |
score |
13.070432 |