Existence of universal entangler

Chen, J; Duan, R; Ji, Z; Ying, M; Yu, J

Existence of universal entangler

Chen, J Duan, R

Ji, Z

Ying, M

Yu, J

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Publication Type:: Journal Article
Citation:: Journal of Mathematical Physics, 2008, 49 (1)
Issue Date:: 2008-02-07

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Field	Value	Language
dc.contributor.author	Chen, J	en_US
dc.contributor.author	Duan, R https://orcid.org/0000-0002-4388-7487	en_US
dc.contributor.author	Ji, Z https://orcid.org/0000-0002-7659-3178	en_US
dc.contributor.author	Ying, M https://orcid.org/0000-0003-4847-702X	en_US
dc.contributor.author	Yu, J	en_US
dc.date.issued	2008-02-07	en_US
dc.identifier.citation	Journal of Mathematical Physics, 2008, 49 (1)	en_US
dc.identifier.issn	0022-2488	en_US
dc.identifier.uri	http://hdl.handle.net/10453/8257
dc.description.abstract	A gate is called an entangler if it transforms some (pure) product states to entangled states. A universal entangler is a gate which transforms all product states to entangled states. In practice, a universal entangler is a very powerful device for generating entanglements, and thus provides important physical resources for accomplishing many tasks in quantum computing and quantum information. This paper demonstrates that a universal entangler always exists except for a degenerated case. Nevertheless, the problem how to find a universal entangler remains open. © 2008 American Institute of Physics.	en_US
dc.relation.ispartof	Journal of Mathematical Physics	en_US
dc.relation.isbasedon	10.1063/1.2829895	en_US
dc.subject.classification	Mathematical Physics	en_US
dc.title	Existence of universal entangler	en_US
dc.type	Journal Article
utslib.citation.volume	1	en_US
utslib.citation.volume	49	en_US
utslib.for	0802 Computation Theory and Mathematics	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	1	en_US
pubs.publication-status	Published	en_US
pubs.volume	49	en_US

Abstract:

A gate is called an entangler if it transforms some (pure) product states to entangled states. A universal entangler is a gate which transforms all product states to entangled states. In practice, a universal entangler is a very powerful device for generating entanglements, and thus provides important physical resources for accomplishing many tasks in quantum computing and quantum information. This paper demonstrates that a universal entangler always exists except for a degenerated case. Nevertheless, the problem how to find a universal entangler remains open. © 2008 American Institute of Physics.

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http://hdl.handle.net/10453/8257