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Article: Efficient measurement-device-independent detection of multipartite entanglement structure

TitleEfficient measurement-device-independent detection of multipartite entanglement structure
Authors
Issue Date2016
Citation
Physical Review A, 2016, v. 94, n. 1, article no. 012343 How to Cite?
AbstractWitnessing entanglement is crucial in quantum information processing. With properly preparing ancillary states, it has been shown previously that genuine entanglement can be witnessed without trusting measurement devices. In this work we generalize the scenario and show that generic multipartite entanglement structures, including entanglement of subsystems and entanglement depth, can be witnessed via measurement-device-independent means. As the original measurement-device-independent entanglement witness scheme exploits only one out of four Bell measurement outcomes for each party, a direct generalization to multipartite quantum states will inevitably cause inefficiency in entanglement detection after taking account of statistical fluctuations. To resolve this problem, we also present a way to utilize all the measurement outcomes. The scheme is efficient for multipartite entanglement detection and can be realized with state-of-the-art technologies.
Persistent Identifierhttp://hdl.handle.net/10722/315257
ISSN
2023 Impact Factor: 2.6
2023 SCImago Journal Rankings: 1.081
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorZhao, Qi-
dc.contributor.authorYuan, Xiao-
dc.contributor.authorMa, Xiongfeng-
dc.date.accessioned2022-08-05T10:18:13Z-
dc.date.available2022-08-05T10:18:13Z-
dc.date.issued2016-
dc.identifier.citationPhysical Review A, 2016, v. 94, n. 1, article no. 012343-
dc.identifier.issn2469-9926-
dc.identifier.urihttp://hdl.handle.net/10722/315257-
dc.description.abstractWitnessing entanglement is crucial in quantum information processing. With properly preparing ancillary states, it has been shown previously that genuine entanglement can be witnessed without trusting measurement devices. In this work we generalize the scenario and show that generic multipartite entanglement structures, including entanglement of subsystems and entanglement depth, can be witnessed via measurement-device-independent means. As the original measurement-device-independent entanglement witness scheme exploits only one out of four Bell measurement outcomes for each party, a direct generalization to multipartite quantum states will inevitably cause inefficiency in entanglement detection after taking account of statistical fluctuations. To resolve this problem, we also present a way to utilize all the measurement outcomes. The scheme is efficient for multipartite entanglement detection and can be realized with state-of-the-art technologies.-
dc.languageeng-
dc.relation.ispartofPhysical Review A-
dc.titleEfficient measurement-device-independent detection of multipartite entanglement structure-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1103/PhysRevA.94.012343-
dc.identifier.scopuseid_2-s2.0-84979935323-
dc.identifier.volume94-
dc.identifier.issue1-
dc.identifier.spagearticle no. 012343-
dc.identifier.epagearticle no. 012343-
dc.identifier.eissn2469-9934-
dc.identifier.isiWOS:000381473900001-

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