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Please use this identifier to cite or link to this item: https://ri.ufs.br/jspui/handle/riufs/20277
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dc.contributor.authorElizalde, E.-
dc.contributor.authorGavrilov, Serguei-
dc.contributor.authorOdintsov, S. D.-
dc.contributor.authorShil'nov, Yu. I.-
dc.date.accessioned2024-10-15T13:33:35Z-
dc.date.available2024-10-15T13:33:35Z-
dc.date.issued2000-
dc.identifier.citationELIZALDE, E. et al. Dynamical symmetry restoration for a higher-derivative four-fermion model in an external electromagnetic field. Brazilian Journal of Physics, São Paulo, v. 30, n. 3, p. 573-580, set. 2000. Disponível em: https://www.scielo.br/j/bjp/a/ZtJvbZMVhStHsq5Jymwq9Cn/?format=pdf&lang=en. Acesso em: 15 out. 2024.pt_BR
dc.identifier.issn0103-9733-
dc.identifier.issn1678-4448-
dc.identifier.urihttps://ri.ufs.br/jspui/handle/riufs/20277-
dc.languageengpt_BR
dc.publisherSociedade Brasileira de Físicapt_BR
dc.relation.ispartofBrazilian Journal of Physicspt_BR
dc.subjectMagnetic fieldeng
dc.subjectBroken symmetryeng
dc.subjectFinite-temperatureeng
dc.subjectElectromagnetic fieldeng
dc.subjectCampo eletromagnéticopor
dc.titleDynamical symmetry restoration for a higher-derivative four-fermion model in an external electromagnetic fieldpt_BR
dc.typeArtigopt_BR
dc.identifier.licenseCreative Commons Atribuição-NãoComercial 4.0 Internacional (CC BY-NC 4.0)pt_BR
dc.description.resumoA four-fermion model with additional higher-derivative terms is investigated in an external electromagnetic field. The effective potential in the leading order of large-N expansion is calculated in external constant magnetic and electric fields. It is shown that, in contrast to the former results concerning the universal character of "magnetic catalysis" in dynamical symmetry breaking, in the present higher-derivative model the magnetic field restores chiral symmetry broken initially on the tree level. Numerical results describing a second-order phase transition that accompanies the symmetry restoration at the quantum level are presented.pt_BR
dc.description.localSão Paulo, SPpt_BR
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