Effective potential in curved space and cut-off regularizations

dc.contributorUniversidade Federal de Juiz de Fora (UFJF)
dc.contributorUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2013-09-30T18:56:20Z
dc.date.accessioned2014-05-20T14:10:47Z
dc.date.available2013-09-30T18:56:20Z
dc.date.available2014-05-20T14:10:47Z
dc.date.created2013-09-30T18:56:20Z
dc.date.created2014-05-20T14:10:47Z
dc.date.issued2011-11-11
dc.identifierPhysics Letters B. Amsterdam: Elsevier B.V., v. 705, n. 3, p. 273-278, 2011.
dc.identifier0370-2693
dc.identifierhttp://hdl.handle.net/11449/24370
dc.identifier10.1016/j.physletb.2011.10.016
dc.identifierWOS:000297180700020
dc.description.abstractWe consider derivation of the effective potential for a scalar field in curved space-time within the physical regularization scheme, using two sorts of covariant cut-off regularizations. The first one is based on the local momentum representation and Riemann normal coordinates and the second is operatorial regularization, based on the Fock-Schwinger-DeWitt proper-time representation. We show, on the example of a self-interacting scalar field, that these two methods produce equal results for divergences, but the first one gives more detailed information about the finite part. Furthermore, we calculate the contribution from a massive fermion loop and discuss renormalization group equations and their interpretation for the multi-mass theories. (C) 2011 Elsevier B.V. All rights reserved.
dc.languageeng
dc.publisherElsevier B.V.
dc.relationPhysics Letters B
dc.relation4.254
dc.relation2,336
dc.rightsAcesso restrito
dc.sourceWeb of Science
dc.subjectEffective potential
dc.subjectCurved space
dc.subjectNormal coordinates
dc.subjectRenormalization group
dc.subjectRenormalization schemes
dc.titleEffective potential in curved space and cut-off regularizations
dc.typeArtículos de revistas


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