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Revisiting Quantum Discord for Two-Qubit X States: The Error Bound to an Analytical Formula
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| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Namkung, Min | - |
| dc.contributor.author | Chang, Jinho | - |
| dc.contributor.author | Shin, Jaehee | - |
| dc.contributor.author | Kwon, Younghun | - |
| dc.date.accessioned | 2021-06-22T19:22:25Z | - |
| dc.date.available | 2021-06-22T19:22:25Z | - |
| dc.date.created | 2021-01-21 | - |
| dc.date.issued | 2015-09 | - |
| dc.identifier.issn | 0020-7748 | - |
| dc.identifier.uri | https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/17406 | - |
| dc.description.abstract | In this article, we investigate the error bound of quantum discord, obtained from the analytic formula of Ali et al. (Phys. Rev. A 81, 042105, 2010) for the case of general X states and from the analytic formula of Fanchini et al. (Phys. Rev. A 81, 052107, 2010) for the case of symmetric X states. For this purpose we consider 3-element POVM. We find that the results of Ali et al. and Fanchini et al. may have the worst-case errors of 0.004565 and 0.0009, respectively. | - |
| dc.language | 영어 | - |
| dc.language.iso | en | - |
| dc.publisher | Kluwer Academic/Plenum Publishers | - |
| dc.title | Revisiting Quantum Discord for Two-Qubit X States: The Error Bound to an Analytical Formula | - |
| dc.type | Article | - |
| dc.contributor.affiliatedAuthor | Kwon, Younghun | - |
| dc.identifier.doi | 10.1007/s10773-015-2573-7 | - |
| dc.identifier.scopusid | 2-s2.0-84939269536 | - |
| dc.identifier.wosid | 000359653700029 | - |
| dc.identifier.bibliographicCitation | International Journal of Theoretical Physics, v.54, no.9, pp.3340 - 3349 | - |
| dc.relation.isPartOf | International Journal of Theoretical Physics | - |
| dc.citation.title | International Journal of Theoretical Physics | - |
| dc.citation.volume | 54 | - |
| dc.citation.number | 9 | - |
| dc.citation.startPage | 3340 | - |
| dc.citation.endPage | 3349 | - |
| dc.type.rims | ART | - |
| dc.type.docType | Article | - |
| dc.description.journalClass | 1 | - |
| dc.description.isOpenAccess | N | - |
| dc.description.journalRegisteredClass | scie | - |
| dc.description.journalRegisteredClass | scopus | - |
| dc.relation.journalResearchArea | Physics | - |
| dc.relation.journalWebOfScienceCategory | Physics, Multidisciplinary | - |
| dc.subject.keywordPlus | ENTANGLEMENT | - |
| dc.subject.keywordAuthor | Quantum discord | - |
| dc.subject.keywordAuthor | Quantum correlation | - |
| dc.identifier.url | https://link.springer.com/article/10.1007/s10773-015-2573-7 | - |
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Related Researcher
- Kwon, Young hun
- COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY (DEPARTMENT OF APPLIED PHYSICS)