Genuine multipartite entanglement in quantum phase transitions

dc.creatorde Oliveira, TR
dc.creatorRigolin, G
dc.creatorde Oliveira, MC
dc.date2006
dc.dateJAN
dc.date2014-11-13T14:56:51Z
dc.date2015-11-26T17:10:11Z
dc.date2014-11-13T14:56:51Z
dc.date2015-11-26T17:10:11Z
dc.date.accessioned2018-03-28T23:58:46Z
dc.date.available2018-03-28T23:58:46Z
dc.identifierPhysical Review A. American Physical Soc, v. 73, n. 1, 2006.
dc.identifier1050-2947
dc.identifierWOS:000235008900005
dc.identifier10.1103/PhysRevA.73.010305
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/67970
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/67970
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/67970
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1280800
dc.descriptionWe demonstrate that the global-entanglement (GE) measure defined by Meyer and Wallach [J. Math. Phys. 43, 4273 (2002)] is maximal at the critical point for the Ising chain in a transverse magnetic field. Our analysis is based on the equivalence of GE to the averaged linear entropy, allowing an understanding of multipartite entanglement (ME) features through a generalization of GE for bipartite blocks of qubits. Moreover, in contrast to GE, the proposed ME measure can distinguish three paradigmatic entangled states: GHZ(N) (Greenberger-Horne-Zeilinger), W-N, and EPRcircle times N/2. As such the generalized measure can detect a genuine ME and is maximal at the critical point.
dc.description73
dc.description1
dc.languageen
dc.publisherAmerican Physical Soc
dc.publisherCollege Pk
dc.publisherEUA
dc.relationPhysical Review A
dc.relationPhys. Rev. A
dc.rightsaberto
dc.sourceWeb of Science
dc.subjectState Entanglement
dc.subjectSystems
dc.titleGenuine multipartite entanglement in quantum phase transitions
dc.typeArtículos de revistas


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