Bounding the sets of classical and quantum correlations in networks

Pozas-Kerstjens, Alejandro; Rabelo, Rafael; Rudnicki, Łukasz; Araújo, Rafael Chaves Souto; Cavalcanti, Daniel; Navascu´es, Miguel; Acín, Antonio

Bounding the sets of classical and quantum correlations in networks

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dc.contributor.author	Pozas-Kerstjens, Alejandro
dc.contributor.author	Rabelo, Rafael
dc.contributor.author	Rudnicki, Łukasz
dc.contributor.author	Araújo, Rafael Chaves Souto
dc.contributor.author	Cavalcanti, Daniel
dc.contributor.author	Navascu´es, Miguel
dc.contributor.author	Acín, Antonio
dc.date.accessioned	2020-09-28T13:31:40Z
dc.date.available	2020-09-28T13:31:40Z
dc.date.issued	2019-10-03
dc.description.resumo	We present a method that allows the study of classical and quantum correlations in networks with causally independent parties, such as the scenario underlying entanglement swapping. By imposing relaxations of factorization constraints in a form compatible with semidefinite programing, it enables the use of the Navascu´es-Pironio-Acín hierarchy in complex quantum networks. We first show how the technique successfully identifies correlations not attainable in the entanglement-swapping scenario. Then we use it to show how the nonlocal power of measurements can be activated in a network: there exist measuring devices that, despite being unable to generate nonlocal correlations in the standard Bell scenario, provide a classical-quantum separation in an entanglement swapping configuration	pt_BR
dc.identifier.citation	POZAS-KERSTJENS, Alejandro; RABELO, Rafael; RUDNICKI, Łukasz; CHAVES, Rafael; CAVALCANTI, Daniel; NAVASCUÉS, Miguel; ACÍN, Antonio. Bounding the Sets of Classical and Quantum Correlations in Networks. Physical Review Letters, [S.L.], v. 123, n. 14, p. 140503, 3 out. 2019. Disponível em: https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.123.140503. Acesso em: 15 set. 2020. http://dx.doi.org/10.1103/physrevlett.123.140503.	pt_BR
dc.identifier.doi	10.1103/physrevlett.123.140503.
dc.identifier.issn	0031-9007
dc.identifier.issn	1079-7114
dc.identifier.uri	https://repositorio.ufrn.br/handle/123456789/30207
dc.language	en	pt_BR
dc.publisher	American Physical Society	pt_BR
dc.subject	Entanglement swapping	pt_BR
dc.subject	Quantum networks	pt_BR
dc.title	Bounding the sets of classical and quantum correlations in networks	pt_BR
dc.type	article	pt_BR