ETRI-Knowledge Sharing Plaform

ENGLISH

성과물

논문 검색
구분 SCI
연도 ~ 키워드

상세정보

학술지 Extension of the GHJW Theorem for Operator Ensembles
Cited 0 time in scopus Download 0 time Share share facebook twitter linkedin kakaostory
저자
최정운, 홍도원, 장구영, 지동표, 이수준
발행일
201101
출처
Physics Letters A, v.375 no.3, pp.430-433
ISSN
0375-9601
출판사
Elsevier
DOI
https://dx.doi.org/10.1016/j.physleta.2010.11.064
협약과제
11ZS1100, 지식서비스기반 SW 핵심기술연구, 황승구
초록
The Gisin-Hughston-Jozsa-Wootters theorem plays an important role in analyzing various theories about quantum information, quantum communication, and quantum cryptography. It means that any purifications on the extended system which yield indistinguishable state ensembles on their subsystem should have a specific local unitary relation. In this Letter, we show that the local relation is also established even when the indistinguishability of state ensembles is extended to that of operator ensembles. © 2010 Elsevier B.V. All rights reserved.
키워드
GHJW theorem, Indistinguishability, Operator ensemble, State ensemble
KSP 제안 키워드
Extended system, Local unitary(LU), Quantum communication, Quantum cryptography, quantum information