{ "id": "0809.5063", "version": "v2", "published": "2008-09-30T16:08:01.000Z", "updated": "2008-12-17T18:29:57.000Z", "title": "The Fibonacci scheme for fault-tolerant quantum computation", "authors": [ "Panos Aliferis", "John Preskill" ], "comment": "24 pages, 10 figures; supersedes arXiv:0709.3603. (v2): Additional discussion about the overhead cost", "journal": "Phys. Rev. A 79, 012332 (2009)", "doi": "10.1103/PhysRevA.79.012332", "categories": [ "quant-ph" ], "abstract": "We rigorously analyze Knill's Fibonacci scheme for fault-tolerant quantum computation, which is based on the recursive preparation of Bell states protected by a concatenated error-detecting code. We prove lower bounds on the threshold fault rate of .67\\times 10^{-3} for adversarial local stochastic noise, and 1.25\\times 10^{-3} for independent depolarizing noise. In contrast to other schemes with comparable proved accuracy thresholds, the Fibonacci scheme has a significantly reduced overhead cost because it uses postselection far more sparingly.", "revisions": [ { "version": "v2", "updated": "2008-12-17T18:29:57.000Z" } ], "analyses": { "subjects": [ "03.67.Lx", "03.67.Pp" ], "keywords": [ "fault-tolerant quantum computation", "rigorously analyze knills fibonacci scheme", "adversarial local stochastic noise", "threshold fault rate", "significantly reduced overhead cost" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Physical Review A", "year": 2009, "month": "Jan", "volume": 79, "number": 1, "pages": "012332" }, "note": { "typesetting": "TeX", "pages": 24, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2009PhRvA..79a2332A" } } }