{
  "id": "0909.1080",
  "version": "v1",
  "published": "2009-09-06T13:28:32.000Z",
  "updated": "2009-09-06T13:28:32.000Z",
  "title": "NMR Quantum Calculations of the Jones Polynomial",
  "authors": [
    "Raimund Marx",
    "Amr Fahmy",
    "Louis Kauffman",
    "Samuel Lomonaco",
    "Andreas Spörl",
    "Nikolas Pomplun",
    "John Myers",
    "Steffen J. Glaser"
  ],
  "comment": "Presented in part at the ENC, Daytona Beach, FL, U.S.A., 22 April to 27 April 2007)",
  "doi": "10.1103/PhysRevA.81.032319",
  "categories": [
    "quant-ph"
  ],
  "abstract": "The repertoire of problems theoretically solvable by a quantum computer recently expanded to include the approximate evaluation of knot invariants, specifically the Jones polynomial. The experimental implementation of this evaluation, however, involves many known experimental challenges. Here we present experimental results for a small-scale approximate evaluation of the Jones Polynomial by nuclear-magnetic resonance (NMR), in addition we show how to escape from the limitations of NMR approaches that employ pseudo pure states. Specifically, we use two spin 1/2 nuclei of natural abundance chloroform and apply a sequence of unitary transforms representing the Trefoil Knot, the Figure Eight Knot and the Borromean Rings. After measuring the state of the molecule in each case, we are able to estimate the value of the Jones Polynomial for each of the knots.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2009-09-06T13:28:32.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "03.67.Ac",
      "03.67.-a"
    ],
    "keywords": [
      "jones polynomial",
      "nmr quantum calculations",
      "employ pseudo pure states",
      "small-scale approximate evaluation",
      "natural abundance chloroform"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review A",
      "year": 2010,
      "month": "Mar",
      "volume": 81,
      "number": 3,
      "pages": "032319"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2010PhRvA..81c2319M"
    }
  }
}