Nonzero Classical Discord

dc.creatorGheorghiu
dc.creatorVlad; de Oliveira
dc.creatorMarcos C.; Sanders
dc.creatorBarry C.
dc.date2015-Jul
dc.date2016-06-07T13:15:06Z
dc.date2016-06-07T13:15:06Z
dc.date.accessioned2018-03-29T01:35:51Z
dc.date.available2018-03-29T01:35:51Z
dc.identifier
dc.identifierNonzero Classical Discord. Amer Physical Soc, v. 115, p. Jul-2015.
dc.identifier0031-9007
dc.identifierWOS:000357864800001
dc.identifier10.1103/PhysRevLett.115.030403
dc.identifierhttp://journals.aps.org/prl/abstract/10.1103/PhysRevLett.115.030403
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/241796
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1305494
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionQuantum discord is the quantitative difference between two alternative expressions for bipartite mutual information, given respectively in terms of two distinct definitions for the conditional entropy. By constructing a stochastic model of shared states, classical discord can be similarly defined, quantifying the presence of some stochasticity in the measurement process. Therefore, discord can generally be understood as a quantification of the system's state disturbance due to local measurements, be it quantum or classical. We establish an operational meaning of classical discord in the context of state merging with noisy measurement and thereby show the quantum-classical separation in terms of a negative conditional entropy.
dc.description115
dc.description3
dc.description
dc.description
dc.description
dc.descriptionPIMS
dc.descriptionIndustry Canada
dc.descriptionNSERC
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionResearch Center in Optics and Photonics (CePOF)
dc.descriptionAITF
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description
dc.description
dc.description
dc.languageen
dc.publisherAMER PHYSICAL SOC
dc.publisher
dc.publisherCOLLEGE PK
dc.relationPHYSICAL REVIEW LETTERS
dc.rightsaberto
dc.sourceWOS
dc.subjectQuantum-mechanics
dc.subjectCurrent Situation
dc.subjectInformation
dc.subjectChannels
dc.subjectState
dc.titleNonzero Classical Discord
dc.typeArtículos de revistas


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