Operational quasiprobabilities for qudits
DC Field | Value | Language |
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dc.contributor.author | Ryu, Junghee | - |
dc.contributor.author | Lim, James | - |
dc.contributor.author | Hong, Sunghyuk | - |
dc.contributor.author | Lee, Jinhyoung | - |
dc.date.accessioned | 2022-07-07T06:14:58Z | - |
dc.date.available | 2022-07-07T06:14:58Z | - |
dc.date.created | 2021-05-12 | - |
dc.date.issued | 2013-11 | - |
dc.identifier.issn | 1050-2947 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/143663 | - |
dc.description.abstract | We propose an operational quasiprobability function for qudits, enabling a comparison between quantum and hidden-variable theories. We show that the quasiprobability function becomes positive semidefinite if consecutive measurement results are described by a hidden-variable model with locality and noninvasive measurability assumed. Otherwise, it is negative valued. The negativity depends on the observables to be measured as well as a given state, as the quasiprobability function is operationally defined. We also propose a marginal quasiprobability function and show that it plays the role of an entanglement witness for two qudits. In addition, we discuss an optical experiment of a polarization qubit to demonstrate its nonclassicality in terms of the quasiprobability function. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | AMER PHYSICAL SOC | - |
dc.title | Operational quasiprobabilities for qudits | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Lee, Jinhyoung | - |
dc.identifier.doi | 10.1103/PhysRevA.88.052123 | - |
dc.identifier.scopusid | 2-s2.0-84888355020 | - |
dc.identifier.wosid | 000327149100002 | - |
dc.identifier.bibliographicCitation | PHYSICAL REVIEW A, v.88, no.5, pp.1 - 9 | - |
dc.relation.isPartOf | PHYSICAL REVIEW A | - |
dc.citation.title | PHYSICAL REVIEW A | - |
dc.citation.volume | 88 | - |
dc.citation.number | 5 | - |
dc.citation.startPage | 1 | - |
dc.citation.endPage | 9 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | Y | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Optics | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Optics | - |
dc.relation.journalWebOfScienceCategory | Physics, Atomic, Molecular & Chemical | - |
dc.subject.keywordPlus | WIGNER-FUNCTION | - |
dc.subject.keywordPlus | QUANTUM-MECHANICS | - |
dc.subject.keywordPlus | TOMOGRAPHY | - |
dc.subject.keywordPlus | REALISM | - |
dc.subject.keywordPlus | STATES | - |
dc.identifier.url | https://journals.aps.org/pra/abstract/10.1103/PhysRevA.88.052123 | - |
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