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Extension of the GHJW theorem for operator ensembles
- Source :
-
Physics Letters A . Jan2011, Vol. 375 Issue 3, p430-433. 4p. - Publication Year :
- 2011
-
Abstract
- Abstract: 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. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 03759601
- Volume :
- 375
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- Physics Letters A
- Publication Type :
- Academic Journal
- Accession number :
- 57162920
- Full Text :
- https://doi.org/10.1016/j.physleta.2010.11.064