Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 배준우 | - |
dc.date.accessioned | 2018-03-21T07:40:48Z | - |
dc.date.available | 2018-03-21T07:40:48Z | - |
dc.date.issued | 2015-12 | - |
dc.identifier.citation | SCIENTIFIC REPORTS, v. 5, Article no. 18270 | en_US |
dc.identifier.issn | 2045-2322 | - |
dc.identifier.uri | https://arxiv.org/abs/1601.07256? | - |
dc.identifier.uri | http://hdl.handle.net/20.500.11754/50152 | - |
dc.description.abstract | Distinguishability is a fundamental and operational measure generally connected to information applications. In quantum information theory, from the postulates of quantum mechanics it often has an intrinsic limitation, which then dictates and also characterises capabilities of related information tasks. In this work, we consider discrimination between bipartite two-qubit unitary transformations by local operations and classical communication (LOCC) and its relations to entangling capabilities of given unitaries. We show that a pair of entangling unitaries which do not contain local parts, if they are perfectly distinguishable by global operations, can also be perfectly distinguishable by LOCC. There also exist non-entangling unitaries, e.g. local unitaries, that are perfectly discriminated by global operations but not by LOCC. The results show that capabilities of LOCC are strictly restricted than global operations in distinguishing bipartite unitaries for a finite number of repetitions, contrast to discrimination of a pair of bipartite states and also to asymptotic discrimination of unitaries. | en_US |
dc.description.sponsorship | We thank A. Acin, U. Sen, A. Sen, and G. Chiribella for helpful discussions. This work is supported by Institute for Information communications Technology Promotion(IITP) grant funded by the Korea government(MSIP) (No. R0190-15-2028, PSQKD). | en_US |
dc.language.iso | en_US | en_US |
dc.publisher | NATURE PUBLISHING GROUP | en_US |
dc.subject | QUANTUM | en_US |
dc.subject | STATES | en_US |
dc.title | Discrimination of two-qubit unitaries via local operations and classical communication | en_US |
dc.type | Article | en_US |
dc.relation.volume | 5 | - |
dc.identifier.doi | 10.1038/srep18270 | - |
dc.relation.page | 18270-18270 | - |
dc.relation.journal | SCIENTIFIC REPORTS | - |
dc.contributor.googleauthor | 배준우 | - |
dc.relation.code | 2015014066 | - |
dc.sector.campus | E | - |
dc.sector.daehak | COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY[E] | - |
dc.sector.department | DEPARTMENT OF APPLIED MATHEMATICS | - |
dc.identifier.pid | joonwoobae | - |
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