Unambiguous discrimination among quantum operations

Wang, G; Ying, M

Unambiguous discrimination among quantum operations

Wang, G Ying, M

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Publication Type:: Journal Article
Citation:: Physical Review A - Atomic, Molecular, and Optical Physics, 2006, 73 (4)
Issue Date:: 2006-04-10

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Field	Value	Language
dc.contributor.author	Wang, G	en_US
dc.contributor.author	Ying, M https://orcid.org/0000-0003-4847-702X	en_US
dc.date.issued	2006-04-10	en_US
dc.identifier.citation	Physical Review A - Atomic, Molecular, and Optical Physics, 2006, 73 (4)	en_US
dc.identifier.issn	1050-2947	en_US
dc.identifier.uri	http://hdl.handle.net/10453/8413
dc.description.abstract	We address the problem of unambiguous discrimination among a given set of quantum operations. The necessary and sufficient condition for them to be unambiguously distinguishable is derived in the cases of single use and multiple uses, respectively. For the latter case we explicitly construct the input states and corresponding measurements that accomplish the task. It is also found that the introduction of entanglement can improve the discrimination. © 2006 The American Physical Society.	en_US
dc.relation.ispartof	Physical Review A - Atomic, Molecular, and Optical Physics	en_US
dc.relation.isbasedon	10.1103/PhysRevA.73.042301	en_US
dc.subject.classification	General Physics	en_US
dc.title	Unambiguous discrimination among quantum operations	en_US
dc.type	Journal Article
utslib.citation.volume	4	en_US
utslib.citation.volume	73	en_US
utslib.for	0205 Optical Physics	en_US
utslib.for	0105 Mathematical Physics	en_US
utslib.for	01 Mathematical Sciences	en_US
utslib.for	02 Physical Sciences	en_US
utslib.for	03 Chemical Sciences	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Strength - QSI - Centre for Quantum Software and Information
utslib.copyright.status	closed_access
pubs.issue	4	en_US
pubs.publication-status	Published	en_US
pubs.volume	73	en_US

Abstract:

We address the problem of unambiguous discrimination among a given set of quantum operations. The necessary and sufficient condition for them to be unambiguously distinguishable is derived in the cases of single use and multiple uses, respectively. For the latter case we explicitly construct the input states and corresponding measurements that accomplish the task. It is also found that the introduction of entanglement can improve the discrimination. © 2006 The American Physical Society.

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http://hdl.handle.net/10453/8413