Dynamics in discrete phase spaces and time interval operators

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dc.contributor.authorGaletti, D.
dc.contributor.authorRuzzi, M.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:28:31Z
dc.date.available2014-05-20T15:28:31Z
dc.date.issued1999-03-01
dc.description.abstractThe von Neumann-Liouville time evolution equation is represented in a discrete quantum phase space. The mapped Liouville operator and the corresponding Wigner function are explicitly written for the problem of a magnetic moment interacting with a magnetic field and the precessing solution is found. The propagator is also discussed and a time interval operator, associated to a unitary operator which shifts the energy levels in the Zeeman spectrum, is introduced. This operator is associated to the particular dynamical process and is not the continuous parameter describing the time evolution. The pair of unitary operators which shifts the time and energy is shown to obey the Weyl-Schwinger algebra. (C) 1999 Elsevier B.V. B.V. All rights reserved.en
dc.description.affiliationUniv Estadual Paulista, Inst Fis Ter, BR-01405900 São Paulo, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Inst Fis Ter, BR-01405900 São Paulo, Brazil
dc.format.extent473-491
dc.identifierhttp://dx.doi.org/10.1016/S0378-4371(98)00457-9
dc.identifier.citationPhysica A. Amsterdam: Elsevier B.V., v. 264, n. 3-4, p. 473-491, 1999.
dc.identifier.doi10.1016/S0378-4371(98)00457-9
dc.identifier.issn0378-4371
dc.identifier.scopus2-s2.0-0033099567
dc.identifier.urihttp://hdl.handle.net/11449/38317
dc.identifier.wosWOS:000078932500010
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofPhysica A
dc.relation.ispartofjcr2.132
dc.relation.ispartofsjr0,773
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectdiscrete phase spacespt
dc.subjectWigner functionspt
dc.subjectLiouville dynamicspt
dc.subjecttime interval operatorpt
dc.titleDynamics in discrete phase spaces and time interval operatorsen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Física Teórica (IFT), São Paulopt

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