Maximum privacy without coherence, zero-error

Leung, D; Yu, N

Maximum privacy without coherence, zero-error

Leung, D Yu, N

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Publication Type:: Journal Article
Citation:: Journal of Mathematical Physics, 2016, 57 (9)
Issue Date:: 2016-09-01

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Field	Value	Language
dc.contributor.author	Leung, D	en_US
dc.contributor.author	Yu, N https://orcid.org/0000-0003-1188-3032	en_US
dc.date.available	2020-05-25T19:12:16Z
dc.date.issued	2016-09-01	en_US
dc.identifier.citation	Journal of Mathematical Physics, 2016, 57 (9)	en_US
dc.identifier.issn	0022-2488	en_US
dc.identifier.uri	http://hdl.handle.net/10453/100701
dc.description.abstract	We study the possible difference between the quantum and the private capacities of a quantum channel in the zero-error setting. For a family of channels introduced by Leung et al. [Phys. Rev. Lett. 113, 030512 (2014)], we demonstrate an extreme difference: the zero-error quantum capacity is zero, whereas the zero-error private capacity is maximum given the quantum output dimension.	en_US
dc.relation.ispartof	Journal of Mathematical Physics	en_US
dc.relation.isbasedon	10.1063/1.4962340	en_US
dc.subject.classification	Mathematical Physics	en_US
dc.title	Maximum privacy without coherence, zero-error	en_US
dc.type	Journal Article
utslib.citation.volume	9	en_US
utslib.citation.volume	57	en_US
utslib.for	0802 Computation Theory and Mathematics	en_US
utslib.for	010503 Mathematical Aspects of Classical Mechanics, Quantum Mechanics and Quantum Information Theory	en_US
utslib.for	01 Mathematical Sciences	en_US
utslib.for	02 Physical 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	open_access
pubs.issue	9	en_US
pubs.publication-status	Published	en_US
pubs.volume	57	en_US

Abstract:

We study the possible difference between the quantum and the private capacities of a quantum channel in the zero-error setting. For a family of channels introduced by Leung et al. [Phys. Rev. Lett. 113, 030512 (2014)], we demonstrate an extreme difference: the zero-error quantum capacity is zero, whereas the zero-error private capacity is maximum given the quantum output dimension.

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http://hdl.handle.net/10453/100701