{ "id": "cond-mat/0607645", "version": "v2", "published": "2006-07-25T15:38:49.000Z", "updated": "2007-05-10T08:38:46.000Z", "title": "Entanglement detection for electrons via witness operators", "authors": [ "Lara Faoro", "Fabio Taddei" ], "comment": "12 pages, 5 figures; published version", "journal": "Phys. Rev. B 75, 165327 (2007)", "doi": "10.1103/PhysRevB.75.165327", "categories": [ "cond-mat.mes-hall", "quant-ph" ], "abstract": "We discuss an implementation of the entanglement witness, a method to detect entanglement with few local measurements, in systems where entangled electrons are generated both in the spin and orbital degrees of freedom. We address the efficiency of this method in various setups, including two different particle-hole entanglement structures, and we demonstrate that it can also be used to infer information on the possible dephasing afflicting the devices.", "revisions": [ { "version": "v2", "updated": "2007-05-10T08:38:46.000Z" } ], "analyses": { "keywords": [ "witness operators", "entanglement detection", "particle-hole entanglement structures", "infer information", "local measurements" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. B" }, "note": { "typesetting": "TeX", "pages": 12, "language": "en", "license": "arXiv", "status": "editable" } } }