Scalar quantum field theory in disordered media

Detalhes bibliográficos
Autor(a) principal: Arias, E.
Data de Publicação: 2011
Outros Autores: Goulart, E., Krein, G. [UNESP], Menezes, G. [UNESP], Svaiter, N. F.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1103/PhysRevD.83.125022
http://hdl.handle.net/11449/226444
Resumo: A free massive scalar field in inhomogeneous random media is investigated. The coefficients of the Klein-Gordon equation are taken to be random functions of the spatial coordinates. The case of a disordered medium modeled by centered stationary and Gaussian processes is analyzed. After performing the averages over the random functions, we obtain the two-point and the four-point Green's functions of the model up to one loop. The disordered scalar quantum field theory becomes qualitatively similar to a λφ4 self-interacting theory with a frequency-dependent coupling. © 2011 American Physical Society.
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spelling Scalar quantum field theory in disordered mediaA free massive scalar field in inhomogeneous random media is investigated. The coefficients of the Klein-Gordon equation are taken to be random functions of the spatial coordinates. The case of a disordered medium modeled by centered stationary and Gaussian processes is analyzed. After performing the averages over the random functions, we obtain the two-point and the four-point Green's functions of the model up to one loop. The disordered scalar quantum field theory becomes qualitatively similar to a λφ4 self-interacting theory with a frequency-dependent coupling. © 2011 American Physical Society.Centro Brasileiro de Pesquisas Físicas, Rua Dr. Xavier Sigaud 150, 22290-180 Rio de Janeiro, RJInstituto de Física Teórica Universidade Estadual Paulista, Rua Dr. Bento Teobaldo Ferraz 271-Bloco II, 01140-070 São Paulo, SPInstituto de Física Teórica Universidade Estadual Paulista, Rua Dr. Bento Teobaldo Ferraz 271-Bloco II, 01140-070 São Paulo, SPCentro Brasileiro de Pesquisas FísicasUniversidade Estadual Paulista (UNESP)Arias, E.Goulart, E.Krein, G. [UNESP]Menezes, G. [UNESP]Svaiter, N. F.2022-04-28T23:24:46Z2022-04-28T23:24:46Z2011-06-21info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1103/PhysRevD.83.125022Physical Review D - Particles, Fields, Gravitation and Cosmology, v. 83, n. 12, 2011.1550-79981550-2368http://hdl.handle.net/11449/22644410.1103/PhysRevD.83.1250222-s2.0-79960812869Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPhysical Review D - Particles, Fields, Gravitation and Cosmologyinfo:eu-repo/semantics/openAccess2022-04-28T23:24:46Zoai:repositorio.unesp.br:11449/226444Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T21:03:30.303182Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Scalar quantum field theory in disordered media
title Scalar quantum field theory in disordered media
spellingShingle Scalar quantum field theory in disordered media
Arias, E.
title_short Scalar quantum field theory in disordered media
title_full Scalar quantum field theory in disordered media
title_fullStr Scalar quantum field theory in disordered media
title_full_unstemmed Scalar quantum field theory in disordered media
title_sort Scalar quantum field theory in disordered media
author Arias, E.
author_facet Arias, E.
Goulart, E.
Krein, G. [UNESP]
Menezes, G. [UNESP]
Svaiter, N. F.
author_role author
author2 Goulart, E.
Krein, G. [UNESP]
Menezes, G. [UNESP]
Svaiter, N. F.
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Centro Brasileiro de Pesquisas Físicas
Universidade Estadual Paulista (UNESP)
dc.contributor.author.fl_str_mv Arias, E.
Goulart, E.
Krein, G. [UNESP]
Menezes, G. [UNESP]
Svaiter, N. F.
description A free massive scalar field in inhomogeneous random media is investigated. The coefficients of the Klein-Gordon equation are taken to be random functions of the spatial coordinates. The case of a disordered medium modeled by centered stationary and Gaussian processes is analyzed. After performing the averages over the random functions, we obtain the two-point and the four-point Green's functions of the model up to one loop. The disordered scalar quantum field theory becomes qualitatively similar to a λφ4 self-interacting theory with a frequency-dependent coupling. © 2011 American Physical Society.
publishDate 2011
dc.date.none.fl_str_mv 2011-06-21
2022-04-28T23:24:46Z
2022-04-28T23:24:46Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1103/PhysRevD.83.125022
Physical Review D - Particles, Fields, Gravitation and Cosmology, v. 83, n. 12, 2011.
1550-7998
1550-2368
http://hdl.handle.net/11449/226444
10.1103/PhysRevD.83.125022
2-s2.0-79960812869
url http://dx.doi.org/10.1103/PhysRevD.83.125022
http://hdl.handle.net/11449/226444
identifier_str_mv Physical Review D - Particles, Fields, Gravitation and Cosmology, v. 83, n. 12, 2011.
1550-7998
1550-2368
10.1103/PhysRevD.83.125022
2-s2.0-79960812869
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Physical Review D - Particles, Fields, Gravitation and Cosmology
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
_version_ 1808129279345557504

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