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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/74826
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dc.contributor.authorFanchini, F. F.-
dc.contributor.authorDe Oliveira, M. C.-
dc.contributor.authorCastelano, L. K.-
dc.contributor.authorCornelio, M. F.-
dc.date.accessioned2014-05-27T11:28:40Z-
dc.date.accessioned2016-10-25T18:45:34Z-
dc.date.available2014-05-27T11:28:40Z-
dc.date.available2016-10-25T18:45:34Z-
dc.date.issued2013-03-13-
dc.identifierhttp://dx.doi.org/10.1103/PhysRevA.87.032317-
dc.identifier.citationPhysical Review A - Atomic, Molecular, and Optical Physics, v. 87, n. 3, 2013.-
dc.identifier.issn1050-2947-
dc.identifier.issn1094-1622-
dc.identifier.urihttp://hdl.handle.net/11449/74826-
dc.identifier.urihttp://acervodigital.unesp.br/handle/11449/74826-
dc.description.abstractUnlike correlation of classical systems, entanglement of quantum systems cannot be distributed at will: if one system A is maximally entangled with another system B, it cannot be entangled at all with a third system C. This concept, known as the monogamy of entanglement, is manifest when the entanglement of A with a pair BC can be divided as contributions of the entanglement between A and B and A and C, plus a term τABC involving genuine tripartite entanglement and so expected to be always positive. A very important measure in quantum information theory, the entanglement of formation (EOF), fails to satisfy this last requirement. Here we present the reasons for that and show a set of conditions that an arbitrary pure tripartite state must satisfy for the EOF to become a monogamous measure, i.e., for τABC≥0. The relation derived is connected to the discrepancy between quantum and classical correlations, τABC being negative whenever the quantum correlation prevails over the classical one. This result is employed to elucidate features of the distribution of entanglement during a dynamical evolution. It also helps to relate all monogamous instances of the EOF to the squashed sntanglement, an entanglement measure that is always monogamous. © 2013 American Physical Society.en
dc.language.isoeng-
dc.sourceScopus-
dc.subjectClassical correlation-
dc.subjectClassical systems-
dc.subjectDynamical evolution-
dc.subjectEntanglement measure-
dc.subjectQuantum correlations-
dc.subjectQuantum information theory-
dc.subjectQuantum system-
dc.subjectTripartite entanglement-
dc.subjectInformation theory-
dc.subjectQuantum electronics-
dc.subjectQuantum entanglement-
dc.subjectQuantum optics-
dc.titleWhy entanglement of formation is not generally monogamousen
dc.typeoutro-
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.contributor.institutionUniversidade Estadual de Campinas (UNICAMP)-
dc.contributor.institutionUniversity of Calgary-
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)-
dc.contributor.institutionUniversidade Federal de Mato Grosso-
dc.description.affiliationFaculdade de Ciências UNESP-Universidade Estadual Paulista, Código de Endereçamento Postal 17033-360, Bauru, São Paulo-
dc.description.affiliationInstituto de Física Gleb Wataghin Universidade Estadual de Campinas, Código de Endereçamento Postal 13083-859, Campinas, São Paulo-
dc.description.affiliationInstitute for Quantum Information Science University of Calgary, AB T2N 1N4-
dc.description.affiliationDepartamento de Física Universidade Federal de São Carlos, Código de Endereçamento Postal 13565-905, São Carlos, São Paulo-
dc.description.affiliationInstituto de Física Universidade Federal de Mato Grosso, Código de Endereçamento Postal 78060-900, Cuiabá, Mato Grosso-
dc.description.affiliationUnespFaculdade de Ciências UNESP-Universidade Estadual Paulista, Código de Endereçamento Postal 17033-360, Bauru, São Paulo-
dc.identifier.doi10.1103/PhysRevA.87.032317-
dc.identifier.wosWOS:000316097000003-
dc.rights.accessRightsAcesso restrito-
dc.identifier.file2-s2.0-84874966950.pdf-
dc.relation.ispartofPhysical Review A: Atomic, Molecular, and Optical Physics-
dc.identifier.scopus2-s2.0-84874966950-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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