{ "id": "1207.5865", "version": "v1", "published": "2012-07-25T01:47:10.000Z", "updated": "2012-07-25T01:47:10.000Z", "title": "Probing Quantitatively Two-electron Entanglement with a Spintronic Quantum Eraser", "authors": [ "W. Chen", "R. Shen", "Z. D. Wang", "L. Sheng", "B. G. Wang", "D. Y. Xing" ], "journal": "Phys. Rev. B 87, 155308 (2013)", "categories": [ "cond-mat.mes-hall" ], "abstract": "We design an ingenious spintronic quantum eraser to quantitatively probe the two-electron entanglement. It is shown that the concurrence of two spin-entangled electrons is directly given by the Aharonov-Bohm oscillation amplitude of the Fano factor, a measurable current-current correlation, making it rather promising to experimentally quantify the two-electron entanglement. The singlet and triplet entangled states are distinguished by the opposite signs in the Fano factor. Since the main building blocks in the designed setup, an electronic Mach-Zehnder interferometer and a spin filter, have already been implemented, our proposal is particularly pertinent to experiments.", "revisions": [ { "version": "v1", "updated": "2012-07-25T01:47:10.000Z" } ], "analyses": { "subjects": [ "85.75.-d", "03.67.Mn", "72.70.+m", "73.23.-b" ], "keywords": [ "probing quantitatively two-electron entanglement", "fano factor", "ingenious spintronic quantum eraser", "electronic mach-zehnder interferometer", "aharonov-bohm oscillation amplitude" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Physical Review B", "doi": "10.1103/PhysRevB.87.155308", "year": 2013, "month": "Apr", "volume": 87, "number": 15, "pages": 155308 }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2013PhRvB..87o5308C" } } }