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Article: Entanglement in a class of multiqubit mixed states without multipartite tangles

TitleEntanglement in a class of multiqubit mixed states without multipartite tangles
Authors
Bai, YKYe, MYWang, ZD
Issue Date2008
PublisherAmerican Physical Society. The Journal's web site is located at http://pra.aps.org
Citation
Physical Review A (Atomic, Molecular and Optical Physics), 2008, v. 78 n. 6, article no. 062325 How to Cite?
DOI: http://dx.doi.org/10.1103/PhysRevA.78.062325
AbstractBased on quantum complementary relations (QCRs) and a purification scenario, we analyze a class of N -qubit mixed states that are entangled but do not have two-, and genuine three-, four-,..., N -qubit entanglements. It is shown that entanglement (one-tangle or negativity) in these mixed states is closely related to the QCR entanglement of their purified states. In particular, it is elaborated that when the mixed state does not have multipartite tangles (two- and higher tangles), its entanglement is actually a kind of genuine multipartite QCR entanglement between the system and its environment. © 2008 The American Physical Society.
Persistent Identifierhttp://hdl.handle.net/10722/59654
ISSN
1050-2947
2014 Impact Factor: 2.808
ISI Accession Number ID
WOS:000262242400065
Funding AgencyGrant Number
RGC of Hong KongHKU7051/06P
HKU7044/08P
HKU-3/05C
HKU
NSF China10429401
60878059
Hebei Normal University
Foundation for Universities in Fujian Province2007F5041
Funding Information:

The authors would like to thank G.-P. He, M. Yang, and Z.-Y. Xue for many helpful discussions. The work was supported by the RGC of Hong Kong under Grants No. HKU7051/06P, No. HKU7044/08P, and No. HKU-3/05C, the URC fund of HKU, and NSF China Grant No. 10429401. Y.K.B. was also supported by the fund of Hebei Normal University. M.Y.Y. was also supported by the Foundation for Universities in Fujian Province (Grant No. 2007F5041) and NSF-China Grant No. 60878059.

References
References in Scopus

 

DC FieldValueLanguage
dc.contributor.authorBai, YKen_HK
dc.contributor.authorYe, MYen_HK
dc.contributor.authorWang, ZDen_HK
dc.date.accessioned2010-05-31T03:54:34Z-
dc.date.available2010-05-31T03:54:34Z-
dc.date.issued2008en_HK
dc.identifier.citationPhysical Review A (Atomic, Molecular and Optical Physics), 2008, v. 78 n. 6, article no. 062325-
dc.identifier.issn1050-2947en_HK
dc.identifier.urihttp://hdl.handle.net/10722/59654-
dc.description.abstractBased on quantum complementary relations (QCRs) and a purification scenario, we analyze a class of N -qubit mixed states that are entangled but do not have two-, and genuine three-, four-,..., N -qubit entanglements. It is shown that entanglement (one-tangle or negativity) in these mixed states is closely related to the QCR entanglement of their purified states. In particular, it is elaborated that when the mixed state does not have multipartite tangles (two- and higher tangles), its entanglement is actually a kind of genuine multipartite QCR entanglement between the system and its environment. © 2008 The American Physical Society.en_HK
dc.languageengen_HK
dc.publisherAmerican Physical Society. The Journal's web site is located at http://pra.aps.orgen_HK
dc.relation.ispartofPhysical Review A (Atomic, Molecular and Optical Physics)-
dc.titleEntanglement in a class of multiqubit mixed states without multipartite tanglesen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0556-2791&volume=78&spage=062325: 1&epage=5&date=2008&atitle=Entanglement+in+a+class+of+multiqubit+mixed+states+without+multipartite+tanglesen_HK
dc.identifier.emailYe, MY: myye@hku.hken_HK
dc.identifier.emailWang, ZD: zwang@hkucc.hku.hken_HK
dc.identifier.authorityYe, MY=rp00830en_HK
dc.identifier.authorityWang, ZD=rp00802en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1103/PhysRevA.78.062325en_HK
dc.identifier.scopuseid_2-s2.0-57849143779en_HK
dc.identifier.hkuros154604en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-57849143779&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume78en_HK
dc.identifier.issue6en_HK
dc.identifier.spagearticle no. 062325-
dc.identifier.epagearticle no. 062325-
dc.identifier.isiWOS:000262242400065-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridBai, YK=7402572297en_HK
dc.identifier.scopusauthoridYe, MY=35114254500en_HK
dc.identifier.scopusauthoridWang, ZD=14828459100en_HK
dc.identifier.issnl1050-2947-

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