Disordered lambda phi(4) + rho phi(6) Landau-Ginzburg model

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dc.contributor.authorAcosta Diaz, R.
dc.contributor.authorSvaiter, N. F.
dc.contributor.authorKrein, G. [UNESP]
dc.contributor.authorZarro, C. A. D.
dc.contributor.institutionCtr Brasileiro Pesquisas Fis
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Federal do Rio de Janeiro (UFRJ)
dc.date.accessioned2018-11-26T17:48:50Z
dc.date.available2018-11-26T17:48:50Z
dc.date.issued2018-03-28
dc.description.abstractWe discuss a disordered lambda phi(4) + rho phi(6) Landau-Ginzburg model defined in a d-dimensional space. First we adopt the standard procedure of averaging the disorder-dependent free energy of the model. The dominant contribution to this quantity is represented by a series of the replica partition functions of the system. Next, using the replica-symmetry ansatz in the saddle-point equations, we prove that the average free energy represents a system with multiple ground states with different order parameters. For low temperatures we show the presence of metastable equilibrium states for some replica fields for a range of values of the physical parameters. Finally, going beyond the mean-field approximation, the one-loop renormalization of this model is performed, in the leading-order replica partition function.en
dc.description.affiliationCtr Brasileiro Pesquisas Fis, BR-22290180 Rio De Janeiro, RJ, Brazil
dc.description.affiliationUniv Estadual Paulista, Inst Fis Teor, Rua Dr Bento Teobaldo Ferraz,271,Bloco 2, BR-01140070 Sao Paulo, SP, Brazil
dc.description.affiliationUniv Fed Rio de Janeiro, Inst Fis, BR-21941972 Rio De Janeiro, RJ, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Inst Fis Teor, Rua Dr Bento Teobaldo Ferraz,271,Bloco 2, BR-01140070 Sao Paulo, SP, Brazil
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdCNPq: 305894/2009-9
dc.description.sponsorshipIdCNPq: 303436/2015-8
dc.description.sponsorshipIdFAPESP: 2013/01907-0
dc.format.extent10
dc.identifierhttp://dx.doi.org/10.1103/PhysRevD.97.065017
dc.identifier.citationPhysical Review D. College Pk: Amer Physical Soc, v. 97, n. 6, 10 p., 2018.
dc.identifier.doi10.1103/PhysRevD.97.065017
dc.identifier.issn2470-0010
dc.identifier.urihttp://hdl.handle.net/11449/164030
dc.identifier.wosWOS:000428506100005
dc.language.isoeng
dc.publisherAmer Physical Soc
dc.relation.ispartofPhysical Review D
dc.relation.ispartofsjr1,801
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.titleDisordered lambda phi(4) + rho phi(6) Landau-Ginzburg modelen
dc.typeArtigo
dcterms.licensehttp://publish.aps.org/authors/transfer-of-copyright-agreement
dcterms.rightsHolderAmer Physical Soc

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