File Download
  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Generating coherent states of entangled spins

TitleGenerating coherent states of entangled spins
Authors
KeywordsAtomic spin
Coherent state
Collective spin
Decoherence
High fidelity
Issue Date2011
PublisherAmerican Physical Society. The Journal's web site is located at http://pra.aps.org
Citation
Physical Review A - Atomic, Molecular, And Optical Physics, 2011, v. 84 n. 3 How to Cite?
AbstractA coherent state of many spins contains quantum entanglement, which increases with a decrease in the collective spin value. We present a scheme to engineer this class of pure state based on incoherent spin pumping with a few collective raising or lowering operators. In a pumping scenario aimed for maximum entanglement, the steady state of N-pumped spin qubits realizes the ideal resource for the 1→N2 quantum telecloning. We show how the scheme can be implemented in a realistic system of atomic spin qubits in an optical lattice. Error analysis shows that high-fidelity state engineering is possible for N∼O(100) spins in the presence of decoherence. The scheme can also prepare a resource state for the secret sharing protocol and for the construction of the large-scale Affleck-Kennedy-Lieb-Tasaki state. © 2011 American Physical Society.
Persistent Identifierhttp://hdl.handle.net/10722/149039
ISSN
2014 Impact Factor: 2.808
2015 SCImago Journal Rankings: 1.418
ISI Accession Number ID
Funding AgencyGrant Number
Research Grant Council of Hong Kong706711P
Funding Information:

The authors thank X. D. Xu for helpful comments. The work was supported by the Research Grant Council of Hong Kong under Grant No. 706711P.

References

 

DC FieldValueLanguage
dc.contributor.authorYu, Hen_HK
dc.contributor.authorLuo, Yen_HK
dc.contributor.authorYao, Wen_HK
dc.date.accessioned2012-06-20T08:18:51Z-
dc.date.available2012-06-20T08:18:51Z-
dc.date.issued2011en_HK
dc.identifier.citationPhysical Review A - Atomic, Molecular, And Optical Physics, 2011, v. 84 n. 3en_HK
dc.identifier.issn1050-2947en_HK
dc.identifier.urihttp://hdl.handle.net/10722/149039-
dc.description.abstractA coherent state of many spins contains quantum entanglement, which increases with a decrease in the collective spin value. We present a scheme to engineer this class of pure state based on incoherent spin pumping with a few collective raising or lowering operators. In a pumping scenario aimed for maximum entanglement, the steady state of N-pumped spin qubits realizes the ideal resource for the 1→N2 quantum telecloning. We show how the scheme can be implemented in a realistic system of atomic spin qubits in an optical lattice. Error analysis shows that high-fidelity state engineering is possible for N∼O(100) spins in the presence of decoherence. The scheme can also prepare a resource state for the secret sharing protocol and for the construction of the large-scale Affleck-Kennedy-Lieb-Tasaki state. © 2011 American Physical Society.en_HK
dc.languageeng-
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.-
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subjectAtomic spin-
dc.subjectCoherent state-
dc.subjectCollective spin-
dc.subjectDecoherence-
dc.subjectHigh fidelity-
dc.titleGenerating coherent states of entangled spinsen_HK
dc.typeArticleen_HK
dc.identifier.emailYao, W: wangyao@hku.hken_HK
dc.identifier.authorityYao, W=rp00827en_HK
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1103/PhysRevA.84.032337en_HK
dc.identifier.scopuseid_2-s2.0-80053177123en_HK
dc.identifier.hkuros199995-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-80053177123&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume84en_HK
dc.identifier.issue3en_HK
dc.identifier.isiWOS:000295216700005-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridYu, H=53165293700en_HK
dc.identifier.scopusauthoridLuo, Y=36930622500en_HK
dc.identifier.scopusauthoridYao, W=35141935300en_HK

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats