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DC Field | Value | Language |
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dc.citation.number | 5 | - |
dc.citation.startPage | 052322 | - |
dc.citation.title | PHYSICAL REVIEW A | - |
dc.citation.volume | 101 | - |
dc.contributor.author | Lie, Seok Hyung | - |
dc.contributor.author | Jeong, Hyunseok | - |
dc.date.accessioned | 2024-03-20T16:05:11Z | - |
dc.date.available | 2024-03-20T16:05:11Z | - |
dc.date.created | 2024-03-20 | - |
dc.date.issued | 2020-05 | - |
dc.description.abstract | Masking quantum information, which is impossible without randomness as a resource, is a task that encodes quantum information into the bipartite quantum state while forbidding local parties from accessing that information. In this paper, we disprove the geometric conjecture about unitarily maskable states [Modi, Pati, Sen, and Sen, Phys. Rev. Lett. 120, 230501 (2018)], and make an algebraic analysis of quantum masking. First, we show a general result of quantum channel mixing that a subchannel's mixing probability should be suppressed if its classical capacity is larger than the mixed channel's capacity. This constraint combined with the well-known information conservation law, a law that does not exist in classical information theories, gives a lower bound of randomness cost of masking quantum information as a monotone decreasing function of evenness of information distribution. This result provides a consistency test for various scenarios of fast scrambling conjecture on the black-hole evaporation process. Our results are robust to incompleteness of quantum masking. | - |
dc.identifier.bibliographicCitation | PHYSICAL REVIEW A, v.101, no.5, pp.052322 | - |
dc.identifier.doi | 10.1103/PhysRevA.101.052322 | - |
dc.identifier.issn | 2469-9926 | - |
dc.identifier.scopusid | 2-s2.0-85085843566 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/81740 | - |
dc.identifier.wosid | 000532647600003 | - |
dc.language | 영어 | - |
dc.publisher | AMER PHYSICAL SOC | - |
dc.title | Randomness cost of masking quantum information and the information conservation law | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Optics; Physics, Atomic, Molecular & Chemical | - |
dc.relation.journalResearchArea | Optics; Physics | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordPlus | CAPACITY | - |
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