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Scalar quantum field theory in disordered media

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dc.contributor.authorArias, E.
dc.contributor.authorGoulart, E.
dc.contributor.authorKrein, Gastão Inácio [UNESP]
dc.contributor.authorMenezes, G. [UNESP]
dc.contributor.authorSvaiter, N. F.
dc.contributor.institutionCentro Brasileiro de Pesquisas Físicas (CBPF)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2013-09-30T18:59:49Z
dc.date.accessioned2014-05-20T14:12:33Z
dc.date.available2013-09-30T18:59:49Z
dc.date.available2014-05-20T14:12:33Z
dc.date.issued2011-06-21
dc.description.abstractA 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 lambda phi(4) self-interacting theory with a frequency-dependent coupling.en
dc.description.affiliationCtr Brasileiro Pesquisas Fis, BR-22290180 Rio de Janeiro, Brazil
dc.description.affiliationUniv Estadual Paulista, Inst Fis Teor, BR-01140070 São Paulo, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Inst Fis Teor, BR-01140070 São Paulo, Brazil
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.format.extent11
dc.identifierhttp://dx.doi.org/10.1103/PhysRevD.83.125022
dc.identifier.citationPhysical Review D. College Pk: Amer Physical Soc, v. 83, n. 12, p. 11, 2011.
dc.identifier.doi10.1103/PhysRevD.83.125022
dc.identifier.fileWOS000291890100008.pdf
dc.identifier.issn1550-7998
dc.identifier.lattes5704289678296630
dc.identifier.urihttp://hdl.handle.net/11449/24561
dc.identifier.wosWOS:000291890100008
dc.language.isoeng
dc.publisherAmer Physical Soc
dc.relation.ispartofPhysical Review D
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.titleScalar quantum field theory in disordered mediaen
dc.typeArtigo
dcterms.licensehttp://publish.aps.org/authors/transfer-of-copyright-agreement
dcterms.rightsHolderAmer Physical Soc
dspace.entity.typePublication
unesp.author.lattes5704289678296630
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Física Teórica (IFT), São Paulopt

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São Paulo - IFT - Instituto de Física Teórica