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Article: Purifying Greenberger-Horne-Zeilinger states using degenerate quantum codes

TitlePurifying Greenberger-Horne-Zeilinger states using degenerate quantum codes
Authors
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. 4 How to Cite?
AbstractDegenerate quantum codes are codes that do not reveal the complete error syndrome. Their ability to conceal the complete error syndrome makes them powerful resources in certain quantum-information processing tasks. In particular, the most error-tolerant way to purify depolarized Bell states using one-way communication known to date involves degenerate quantum codes. Here we study three closely related purification schemes for depolarized Greenberger-Horne-Zeilinger states shared among m≥3 players by means of degenerate quantum codes and one-way classical communications. We find that our schemes tolerate more noise than all other one-way schemes known to date, further demonstrating the effectiveness of degenerate quantum codes in quantum-information processing. © 2008 The American Physical Society.
Persistent Identifierhttp://hdl.handle.net/10722/59591
ISSN
2014 Impact Factor: 2.808
2015 SCImago Journal Rankings: 1.418
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorHo, KHen_HK
dc.contributor.authorChau, HFen_HK
dc.date.accessioned2010-05-31T03:53:24Z-
dc.date.available2010-05-31T03:53:24Z-
dc.date.issued2008en_HK
dc.identifier.citationPhysical Review A - Atomic, Molecular, And Optical Physics, 2008, v. 78 n. 4en_HK
dc.identifier.issn1050-2947en_HK
dc.identifier.urihttp://hdl.handle.net/10722/59591-
dc.description.abstractDegenerate quantum codes are codes that do not reveal the complete error syndrome. Their ability to conceal the complete error syndrome makes them powerful resources in certain quantum-information processing tasks. In particular, the most error-tolerant way to purify depolarized Bell states using one-way communication known to date involves degenerate quantum codes. Here we study three closely related purification schemes for depolarized Greenberger-Horne-Zeilinger states shared among m≥3 players by means of degenerate quantum codes and one-way classical communications. We find that our schemes tolerate more noise than all other one-way schemes known to date, further demonstrating the effectiveness of degenerate quantum codes in quantum-information processing. © 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 Physicsen_HK
dc.rightsPhysical Review A (Atomic, Molecular and Optical Physics). Copyright © American Physical Society.en_HK
dc.titlePurifying Greenberger-Horne-Zeilinger states using degenerate quantum codesen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0556-2791&volume=78&spage=042329: 1&epage=17&date=2008&atitle=Purifying+Greenberger-Horne-Zeilinger+states+using+degenerate+quantum+codesen_HK
dc.identifier.emailChau, HF: hfchau@hku.hken_HK
dc.identifier.authorityChau, HF=rp00669en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1103/PhysRevA.78.042329en_HK
dc.identifier.scopuseid_2-s2.0-55049097674en_HK
dc.identifier.hkuros153695en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-55049097674&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume78en_HK
dc.identifier.issue4en_HK
dc.identifier.isiWOS:000260574100059-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridHo, KH=8314914400en_HK
dc.identifier.scopusauthoridChau, HF=7005742276en_HK

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