{ "id": "0906.4960", "version": "v1", "published": "2009-06-26T14:44:25.000Z", "updated": "2009-06-26T14:44:25.000Z", "title": "Quantum divisibility test and its application in mesoscopic physics", "authors": [ "G. B. Lesovik", "M. V. Suslov", "G. Blatter" ], "comment": "9 pages, 5 figures", "categories": [ "cond-mat.mes-hall", "quant-ph" ], "abstract": "We present a quantum algorithm to transform the cardinality of a set of charged particles flowing along a quantum wire into a binary number. The setup performing this task (for at most N particles) involves log_2 N quantum bits serving as counters and a sequential read out. Applications include a divisibility check to experimentally test the size of a finite train of particles in a quantum wire with a one-shot measurement and a scheme allowing to entangle multi-particle wave functions and generating Bell states, Greenberger-Horne-Zeilinger states, or Dicke states in a Mach-Zehnder interferometer.", "revisions": [ { "version": "v1", "updated": "2009-06-26T14:44:25.000Z" } ], "analyses": { "subjects": [ "03.67.Ac", "03.67.Bg", "73.23.-b" ], "keywords": [ "quantum divisibility test", "mesoscopic physics", "application", "quantum wire", "entangle multi-particle wave functions" ], "tags": [ "journal article" ], "publication": { "doi": "10.1103/PhysRevA.82.012316", "journal": "Physical Review A", "year": 2010, "month": "Jul", "volume": 82, "number": 1, "pages": "012316" }, "note": { "typesetting": "TeX", "pages": 9, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2010PhRvA..82a2316L" } } }