Detecting nonlocality of noisy multipartite states with the Clauser-Horne-Shimony-Holt inequality

dc.contributor.authorAraújo, Rafael Chaves Souto
dc.contributor.authorAcín, Antonio
dc.contributor.authorAolita, Leandro
dc.contributor.authorCavalcanti, Daniel
dc.contributor.authorIDhttps://orcid.org/0000-0001-8493-4019
dc.date.accessioned2025-06-09T16:10:28Z
dc.date.available2025-06-09T16:10:28Z
dc.date.issued2014-04-14
dc.description.resumoThe Clauser-Horne-Shimony-Holt inequality was originally proposed as a Bell inequality to detect nonlocality in bipartite systems. However, it can also be used to certify the nonlocality of multipartite quantum states. We apply this to study the nonlocality of multipartite Greenberger-Horne-Zeilinger (GHZ), W, and graph states under local decoherence processes. We derive lower bounds on the critical local-noise strength tolerated by the states before becoming local. In addition, for the whole noisy dynamics, we derive lower bounds on the corresponding nonlocal content for the three classes of states. All the bounds presented can be calculated efficiently and, in some cases, provide significantly tighter estimates than with any other known method. For example, they reveal that 𝑁-qubit GHZ states undergoing local dephasing are, for all 𝑁, nonlocal throughout all the dephasing dynamics
dc.identifier.citationARAÚJO, Rafael Chaves Souto; ACÍN, Antonio ; AOLITA, Leandro ; CAVALCANTI, Daniel . Detecting nonlocality of noisy multipartite states with the Clauser-Horne-Shimony-Holt inequality. Physical Review. A, v. 89, p. 042106, 2014. DOI 10.1103/PhysRevA.89.042106. Disponível em: https://journals.aps.org/pra/abstract/10.1103/PhysRevA.89.042106. Acesso em: 24 mar. 2025.
dc.identifier.doi10.1103/PhysRevA.89.042106
dc.identifier.issn2469-9934
dc.identifier.otherDOI 10.1103/PhysRevA.89.042106
dc.identifier.urihttps://repositorio.ufrn.br/handle/123456789/63872
dc.languageenpt_BR
dc.language.isoen
dc.publisherPhysical Review Apt_BR
dc.subjectNonlocalitypt_BR
dc.subjectnão localidadept_BR
dc.subjectGHZ statespt_BR
dc.subjectEstados GHZpt_BR
dc.subjectMultipartite statespt_BR
dc.subjectEstados multipartidospt_BR
dc.titleDetecting nonlocality of noisy multipartite states with the Clauser-Horne-Shimony-Holt inequality
dc.typearticle

Arquivos

Pacote Original

Agora exibindo 1 - 1 de 1
Nenhuma Miniatura disponível
Nome:
DetectingNonlocalityNoisy_ARAUJO_2014.pdf
Tamanho:
232.8 KB
Formato:
Adobe Portable Document Format
Nenhuma Miniatura disponível
Baixar

Licença do Pacote

Agora exibindo 1 - 1 de 1
Nenhuma Miniatura disponível
Nome:
license.txt
Tamanho:
1.45 KB
Formato:
Item-specific license agreed upon to submission
Nenhuma Miniatura disponível
Baixar