| Device-independent witnesses of genuine multipartite entanglement. | |
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MedLine Citation:
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PMID: 21770616 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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We consider the problem of determining whether genuine multipartite entanglement was produced in an experiment, without relying on a characterization of the systems observed or of the measurements performed. We present an n-partite inequality that is satisfied by all correlations produced by measurements on biseparable quantum states, but which can be violated by n-partite entangled states, such as Greenberger-Horne-Zeilinger states. In contrast to traditional entanglement witnesses, the violation of this inequality implies that the state is not biseparable independently of the Hilbert space dimension and of the measured operators. Violation of this inequality does not imply, however, genuine multipartite nonlocality. We show more generically how the problem of identifying genuine tripartite entanglement in a device-independent way can be addressed through semidefinite programming. |
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Authors:
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Jean-Daniel Bancal; Nicolas Gisin; Yeong-Cherng Liang; Stefano Pironio |
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Publication Detail:
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Type: Journal Article Date: 2011-06-24 |
Journal Detail:
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Title: Physical review letters Volume: 106 ISSN: 1079-7114 ISO Abbreviation: Phys. Rev. Lett. Publication Date: 2011 Jun |
Date Detail:
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Created Date: 2011-07-20 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0401141 Medline TA: Phys Rev Lett Country: United States |
Other Details:
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Languages: eng Pagination: 250404 Citation Subset: IM |
Affiliation:
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Group of Applied Physics, University of Geneva, Geneva, Switzerland. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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