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Article: Testing Bell’s inequality and measuring the entanglement using superconducting nanocircuits

TitleTesting Bell’s inequality and measuring the entanglement using superconducting nanocircuits
Authors
KeywordsPhysics
Issue Date2003
PublisherAmerican Physical Society. The Journal's web site is located at http://pra.aps.org
Citation
Physical Review A (Atomic, Molecular and Optical Physics), 2003, v. 68 n. 1, p. 012315:1-6 How to Cite?
AbstractAn experimental scheme is proposed to test Bell’s inequality by using superconducting nanocircuits. In this scheme, quantum entanglement of a pair of charge qubits separated by a sufficiently long distance may be created by cavity quantum electrodynamic techniques; the population of qubits is experimentally measurable by dc currents through the probe junctions, and one measured outcome may be recorded for every experiment. Therefore, both locality and detection-efficiency loopholes should be closed in the same experiment. We also propose a useful method to measure the amount of entanglement based on the concurrence between Josephson qubits. The measurable variables for Bell’s inequality as well as the entanglement are expressed in terms of a useful phase-space Q function.
Persistent Identifierhttp://hdl.handle.net/10722/43400
ISSN
2014 Impact Factor: 2.808
2015 SCImago Journal Rankings: 1.418
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorHe, GPen_HK
dc.contributor.authorZhu, SLen_HK
dc.contributor.authorWang, ZDen_HK
dc.contributor.authorLi, HZen_HK
dc.date.accessioned2007-03-23T04:44:59Z-
dc.date.available2007-03-23T04:44:59Z-
dc.date.issued2003en_HK
dc.identifier.citationPhysical Review A (Atomic, Molecular and Optical Physics), 2003, v. 68 n. 1, p. 012315:1-6en_HK
dc.identifier.issn1050-2947en_HK
dc.identifier.urihttp://hdl.handle.net/10722/43400-
dc.description.abstractAn experimental scheme is proposed to test Bell’s inequality by using superconducting nanocircuits. In this scheme, quantum entanglement of a pair of charge qubits separated by a sufficiently long distance may be created by cavity quantum electrodynamic techniques; the population of qubits is experimentally measurable by dc currents through the probe junctions, and one measured outcome may be recorded for every experiment. Therefore, both locality and detection-efficiency loopholes should be closed in the same experiment. We also propose a useful method to measure the amount of entanglement based on the concurrence between Josephson qubits. The measurable variables for Bell’s inequality as well as the entanglement are expressed in terms of a useful phase-space Q function.en_HK
dc.format.extent390603 bytes-
dc.format.extent45056 bytes-
dc.format.mimetypeapplication/pdf-
dc.format.mimetypeapplication/msword-
dc.languageengen_HK
dc.publisherAmerican Physical Society. The Journal's web site is located at http://pra.aps.orgen_HK
dc.rightsPhysical Review A (Atomic, Molecular and Optical Physics). Copyright © American Physical Society.en_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subjectPhysicsen_HK
dc.titleTesting Bell’s inequality and measuring the entanglement using superconducting nanocircuitsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0556-2791&volume=68&issue=1&spage=012315:1&epage=6&date=2003&atitle=Testing+Bell’s+inequality+and+measuring+the+entanglement+using+superconducting+nanocircuitsen_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1103/PhysRevA.68.012315en_HK
dc.identifier.scopuseid_2-s2.0-0141461511-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0141461511&selection=ref&src=s&origin=recordpage-
dc.identifier.isiWOS:000184571600041-
dc.publisher.placeUnited States-
dc.identifier.scopusauthoridHe, GP=36140152800-
dc.identifier.scopusauthoridZhu, SL=34972495900-
dc.identifier.scopusauthoridWang, ZD=14828459100-
dc.identifier.scopusauthoridLi, HZ=8376242700-

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