Disentanglement of Source and Target and the Laser Quantum State

Noh, C; Carmichael, Howard

dc.contributor.author	Noh, C	en
dc.contributor.author	Carmichael, Howard	en
dc.date.accessioned	2012-03-29T21:06:40Z	en
dc.date.issued	2008	en
dc.identifier.citation	Physical Review Letters 100:1-4 Article number 120405 2008	en
dc.identifier.issn	0031-9007	en
dc.identifier.uri	http://hdl.handle.net/2292/16103	en
dc.description.abstract	Disentanglement of a laser source from its target qubit is proposed as a criterion establishing the laser quantum state as a coherent state. It is shown that the source-target density operator has a unique factorization in coherent states when the environmental record monitoring laser pump quanta is ignored. The source-target state conditioned upon the complete environmental record is entangled, though, as a state of known total quanta number (source plus target).	en
dc.publisher	The American Physical Society	en
dc.relation.ispartofseries	Physical Review Letters	en
dc.rights	Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. Details obtained from http://www.sherpa.ac.uk/romeo/issn/0031-9007/	en
dc.rights.uri	https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm	en
dc.title	Disentanglement of Source and Target and the Laser Quantum State	en
dc.type	Journal Article	en
dc.identifier.doi	10.1103/PhysRevLett.100.120405	en
pubs.begin-page	1	en
pubs.volume	100	en
dc.rights.holder	Copyright: The American Physical Society	en
dc.identifier.pmid	18517844	en
pubs.end-page	4	en
dc.rights.accessrights	http://purl.org/eprint/accessRights/RestrictedAccess	en
pubs.subtype	Article	en
pubs.elements-id	115031	en
pubs.org-id	Science	en
pubs.org-id	Physics	en
dc.identifier.eissn	1079-7114	en
pubs.number	120405	en
pubs.record-created-at-source-date	2012-03-12	en
pubs.dimensions-id	18517844	en