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Article: Activation of monogamy in nonlocality using local contextuality

TitleActivation of monogamy in nonlocality using local contextuality
Authors
Issue Date2017
Citation
Physical Review A, 2017, v. 95, n. 3, article no. 030104(R) How to Cite?
Abstract© 2017 American Physical Society. A unified view of the phenomenon of monogamy exhibited by Bell inequalities and noncontextuality inequalities arising from the no-signaling and no-disturbance principles is presented using the graph-theoretic method introduced by Ramanathan et al. [Phys. Rev. Lett. 109, 050404 (2012)PRLTAO0031-900710.1103/PhysRevLett.109.050404]. We propose a hitherto unexplored tradeoff relation, namely, Bell inequalities that do not exhibit monogamy features of their own can be activated to be monogamous by the addition of a local contextuality term. This is illustrated by means of the well-known I3322 inequality and reveals a resource trade-off between bipartite correlations and the local purity of a single system. In the derivation of no-signaling monogamies, we uncover a unique feature, namely, that two-party Bell expressions that are trivially classically saturated can become nontrivial upon the addition of an expression involving a third party with a single measurement input.
Persistent Identifierhttp://hdl.handle.net/10722/277064
ISSN
2017 Impact Factor: 2.909

 

DC FieldValueLanguage
dc.contributor.authorSaha, Debashis-
dc.contributor.authorRamanathan, Ravishankar-
dc.date.accessioned2019-09-18T08:35:30Z-
dc.date.available2019-09-18T08:35:30Z-
dc.date.issued2017-
dc.identifier.citationPhysical Review A, 2017, v. 95, n. 3, article no. 030104(R)-
dc.identifier.issn2469-9926-
dc.identifier.urihttp://hdl.handle.net/10722/277064-
dc.description.abstract© 2017 American Physical Society. A unified view of the phenomenon of monogamy exhibited by Bell inequalities and noncontextuality inequalities arising from the no-signaling and no-disturbance principles is presented using the graph-theoretic method introduced by Ramanathan et al. [Phys. Rev. Lett. 109, 050404 (2012)PRLTAO0031-900710.1103/PhysRevLett.109.050404]. We propose a hitherto unexplored tradeoff relation, namely, Bell inequalities that do not exhibit monogamy features of their own can be activated to be monogamous by the addition of a local contextuality term. This is illustrated by means of the well-known I3322 inequality and reveals a resource trade-off between bipartite correlations and the local purity of a single system. In the derivation of no-signaling monogamies, we uncover a unique feature, namely, that two-party Bell expressions that are trivially classically saturated can become nontrivial upon the addition of an expression involving a third party with a single measurement input.-
dc.languageeng-
dc.relation.ispartofPhysical Review A-
dc.titleActivation of monogamy in nonlocality using local contextuality-
dc.typeArticle-
dc.description.natureLink_to_subscribed_fulltext-
dc.identifier.doi10.1103/PhysRevA.95.030104-
dc.identifier.scopuseid_2-s2.0-85015383686-
dc.identifier.volume95-
dc.identifier.issue3-
dc.identifier.spagearticle no. 030104(R)-
dc.identifier.epagearticle no. 030104(R)-
dc.identifier.eissn2469-9934-

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