Phase damping destroys quantum Fisher information of W states

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dc.authorid0000-0002-5872-9158
dc.contributor.authorÖzaydın, Fatihen_US
dc.date.accessioned2015-01-15T23:02:50Z
dc.date.available2015-01-15T23:02:50Z
dc.date.issued2014-09-05
dc.departmentIşık Üniversitesi, Fen Edebiyat Fakültesi, Enformasyon Teknolojileri Bölümüen_US
dc.departmentIşık University, Faculty of Arts and Sciences, Department of Information Technologiesen_US
dc.description.abstractWe study the quantum Fisher information (QFI) of W states in the basic decoherence channels. We show that, as decoherence starts and increases, under i) depolarizing, QFI smoothly decays; ii) amplitude damping, QFI first exhibits a sudden drop to the shot noise level, then decreases to zero and finally increases back to the shot noise level; iii) phase damping, QFI is zero for all non-zero decoherence. We also find that on the contrary to GHZ states, QFI of W states in x and y directions are equal to each other and zero in z direction.en_US
dc.description.versionPublisher's Versionen_US
dc.description.versionAuthor Post Printen_US
dc.identifier.citationÖzaydın, F. (2014). Phase damping destroys quantum fisher information of W states. Physics Letters A, 378(43), 3161-3164. doi:10.1016/j.physleta.2014.08.035en_US
dc.identifier.doi10.1016/j.physleta.2014.08.035
dc.identifier.endpage3164
dc.identifier.issn0375-9601
dc.identifier.issn1873-2429
dc.identifier.issue43
dc.identifier.scopus2-s2.0-84908424193
dc.identifier.scopusqualityQ2
dc.identifier.startpage3161
dc.identifier.urihttps://hdl.handle.net/11729/517
dc.identifier.urihttp://dx.doi.org/10.1016/j.physleta.2014.08.035
dc.identifier.volume378
dc.identifier.wosWOS:000344212000003
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakScience Citation Index Expanded (SCI-EXPANDED)en_US
dc.institutionauthorÖzaydın, Fatihen_US
dc.institutionauthorid0000-0002-5872-9158
dc.language.isoenen_US
dc.peerreviewedYesen_US
dc.publicationstatusPublisheden_US
dc.publisherElsevier Science BVen_US
dc.relation.ispartofPhysics Letters, Section A: General, Atomic and Solid State Physicsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectQuantum fisher informationen_US
dc.subjectMultipartite entanglementen_US
dc.subjectW statesen_US
dc.subjectDecoherence channelsen_US
dc.subjectCavitiesen_US
dc.subjectAtomsen_US
dc.subjectCavity decayen_US
dc.titlePhase damping destroys quantum Fisher information of W statesen_US
dc.typeArticleen_US
dspace.entity.typePublication

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