{ "id": "cond-mat/0311649", "version": "v3", "published": "2003-11-28T15:35:57.000Z", "updated": "2003-12-07T13:09:27.000Z", "title": "Entanglement in Mesoscopic Structures: Role of Projection", "authors": [ "A. V. Lebedev", "G. Blatter", "C. W. J. Beenakker", "G. B. Lesovik" ], "comment": "5 pages, 1 figure", "journal": "Phys.Rev.B 69, 235312 (2004)", "doi": "10.1103/PhysRevB.69.235312", "categories": [ "cond-mat.mes-hall", "cond-mat.str-el", "quant-ph" ], "abstract": "We present a theoretical analysis of the appearance of entanglement in non-interacting mesoscopic structures. Our setup involves two oppositely polarized sources injecting electrons of opposite spin into the two incoming leads. The mixing of these polarized streams in an ideal four-channel beam splitter produces two outgoing streams with particular tunable correlations. A Bell inequality test involving cross-correlated spin-currents in opposite leads signals the presence of spin-entanglement between particles propagating in different leads. We identify the role of fermionic statistics and projective measurement in the generation of these spin-entangled electrons.", "revisions": [ { "version": "v3", "updated": "2003-12-07T13:09:27.000Z" } ], "analyses": { "keywords": [ "mesoscopic structures", "ideal four-channel beam splitter produces", "entanglement", "projection", "bell inequality test" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. B" }, "note": { "typesetting": "TeX", "pages": 5, "language": "en", "license": "arXiv", "status": "editable" } } }