Please use this identifier to cite or link to this item: https://doi.org/10.1088/1367-2630/13/5/053054
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dc.titleExtreme nonlocality with one photon
dc.contributor.authorHeaney, L.
dc.contributor.authorCabello, A.
dc.contributor.authorSantos, M.F.
dc.contributor.authorVedral, V.
dc.date.accessioned2014-10-16T09:25:08Z
dc.date.available2014-10-16T09:25:08Z
dc.date.issued2011-05
dc.identifier.citationHeaney, L., Cabello, A., Santos, M.F., Vedral, V. (2011-05). Extreme nonlocality with one photon. New Journal of Physics 13 : -. ScholarBank@NUS Repository. https://doi.org/10.1088/1367-2630/13/5/053054
dc.identifier.issn13672630
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/96584
dc.description.abstractQuantum nonlocality is typically assigned to systems of two or more well-separated particles, but nonlocality can also exist in systems consisting of just a single particle when one considers the subsystems to be distant spatial field modes. Single particle nonlocality has been confirmed experimentally via a bipartite Bell inequality. In this paper, we introduce an N-party Hardy-like proof of the impossibility of local elements of reality and a Bell inequality for local realistic theories in the case of a single particle superposed symmetrically over N spatial field modes (i.e. N qubit W state). We show that, in the limit of large N, the Hardy-like proof effectively becomes an all-versus-nothing (or Greenberger-Horne-Zeilinger (GHZ)-like) proof, and the quantum-classical gap of the Bell inequality tends to be the same as that in a three-particle GHZ experiment. We describe how to test the nonlocality in realistic systems. © IOP Publishing Ltd and Deutsche Physikalische Gesellschaft.
dc.sourceScopus
dc.typeArticle
dc.contributor.departmentPHYSICS
dc.description.doi10.1088/1367-2630/13/5/053054
dc.description.sourcetitleNew Journal of Physics
dc.description.volume13
dc.description.page-
dc.identifier.isiut000292002900002
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