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http://acervodigital.unesp.br/handle/11449/129849
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DC Field | Value | Language |
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dc.contributor.author | Ma, Zhihao | - |
dc.contributor.author | Chen, Zhihua | - |
dc.contributor.author | Fanchini, Felipe Fernandes | - |
dc.contributor.author | Fei, Shao-Ming | - |
dc.date.accessioned | 2015-10-22T07:20:48Z | - |
dc.date.accessioned | 2016-10-25T21:16:38Z | - |
dc.date.available | 2015-10-22T07:20:48Z | - |
dc.date.available | 2016-10-25T21:16:38Z | - |
dc.date.issued | 2015-06-03 | - |
dc.identifier | http://www.nature.com/articles/srep10262 | - |
dc.identifier.citation | Scientific Reports. London: Nature Publishing Group, v. 5, p. 1-7, 2015. | - |
dc.identifier.issn | 2045-2322 | - |
dc.identifier.uri | http://hdl.handle.net/11449/129849 | - |
dc.identifier.uri | http://acervodigital.unesp.br/handle/11449/129849 | - |
dc.description.abstract | We present an analytical solution for classical correlation, defined in terms of linear entropy, in an arbitrary d circle times 2 system when the second subsystem is measured. We show that the optimal measurements used in the maximization of the classical correlation in terms of linear entropy, when used to calculate the quantum discord in terms of von Neumann entropy, result in a tight upper bound for arbitrary d circle times 2 systems. This bound agrees with all known analytical results about quantum discord in terms of von Neumann entropy and, when comparing it with the numerical results for 10(6) two-qubit random density matrices, we obtain an average deviation of order 10(-4). Furthermore, our results give a way to calculate the quantum discord for arbitrary n-qubit GHZ and W states evolving under the action of the amplitude damping noisy channel. | en |
dc.description.sponsorship | NSFC | - |
dc.description.sponsorship | Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) | - |
dc.description.sponsorship | National Institute for Science and Technology of Quantum Information (INCT-IQ) | - |
dc.description.sponsorship | Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) | - |
dc.format.extent | 1-7 | - |
dc.language.iso | eng | - |
dc.publisher | Nature Publishing Group | - |
dc.source | Web of Science | - |
dc.title | Quantum Discord for d circle times 2 Systems | en |
dc.type | outro | - |
dc.contributor.institution | Shanghai Jiao Tong Univ | - |
dc.contributor.institution | UCL | - |
dc.contributor.institution | Zhejiang Univ Technol | - |
dc.contributor.institution | Natl Univ Singapore | - |
dc.contributor.institution | Universidade Estadual Paulista (UNESP) | - |
dc.contributor.institution | Capital Normal Univ | - |
dc.contributor.institution | Max Planck Inst Math Sci | - |
dc.description.affiliation | Shanghai Jiao Tong Univ, Dept Math, Shanghai 200240, Peoples R China | - |
dc.description.affiliation | UCL, Dept Phys &Astron, London WC1E 6BT, England | - |
dc.description.affiliation | Zhejiang Univ Technol, Coll Sci, Dept Math, Hangzhou 310023, Zhejiang, Peoples R China | - |
dc.description.affiliation | Natl Univ Singapore, Ctr Quantum Technol, Singapore 117543, Singapore | - |
dc.description.affiliation | Univ Estadual Paulista, Fac Ciencias, Dept Fis, Sao Paulo, Brazil | - |
dc.description.affiliation | Capital Normal Univ, Sch Math Sci, Beijing 100048, Peoples R China | - |
dc.description.affiliation | Max Planck Inst Math Sci, D-04103 Leipzig, Germany | - |
dc.description.affiliationUnesp | Univ Estadual Paulista, Fac Ciencias, Dept Fis, Sao Paulo, Brazil | - |
dc.description.sponsorshipId | NSFC: 11371247 | - |
dc.description.sponsorshipId | NSFC: 10901103 | - |
dc.description.sponsorshipId | NSFC: 11201427 | - |
dc.description.sponsorshipId | FAPESP: 2012/50464-0 | - |
dc.description.sponsorshipId | National Institute for Science and Technology of Quantum Information (INCT-IQ): 2008/57856-6 | - |
dc.description.sponsorshipId | CNPq: 474592/2013-8 | - |
dc.identifier.doi | http://dx.doi.org/10.1038/srep10262 | - |
dc.identifier.wos | WOS:000355647900001 | - |
dc.rights.accessRights | Acesso aberto | - |
dc.identifier.file | WOS000355647900001.pdf | - |
dc.relation.ispartof | Scientific Reports | - |
Appears in Collections: | Artigos, TCCs, Teses e Dissertações da Unesp |
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