{
  "id": "1301.1050",
  "version": "v2",
  "published": "2013-01-06T20:24:33.000Z",
  "updated": "2013-07-16T12:23:59.000Z",
  "title": "Discrete time quantum walk with nitrogen-vacancy centers in diamond coupled to a superconducting flux qubit",
  "authors": [
    "Ali Ü. C. Hardal",
    "Peng Xue",
    "Yutaka Shikano",
    "Özgür E. Müstecapl\\ioglu",
    "Barry C. Sanders"
  ],
  "comment": "10 pages, 7 figures",
  "journal": "Physical Review A 88, 022303 (2013) [11 pages]",
  "doi": "10.1103/PhysRevA.88.022303",
  "categories": [
    "quant-ph"
  ],
  "abstract": "We propose a quantum-electrodynamics scheme for implementing the discrete-time, coined quantum walk with the walker corresponding to the phase degree of freedom for a quasi-magnon field realized in an ensemble of nitrogen-vacancy centres in diamond. The coin is realized as a superconducting flux qubit. Our scheme improves on an existing proposal for implementing quantum walks in cavity quantum electrodynamics by removing the cumbersome requirement of varying drive-pulse durations according to mean quasiparticle number. Our improvement is relevant to all indirect-coin-flip cavity quantum-electrodynamics realizations of quantum walks. Our numerical analysis shows that this scheme can realize a discrete quantum walk under realistic conditions.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2013-07-16T12:23:59.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "03.67.Lx",
      "05.40.Fb",
      "03.65.Yz"
    ],
    "keywords": [
      "discrete time quantum walk",
      "superconducting flux qubit",
      "nitrogen-vacancy centers",
      "indirect-coin-flip cavity quantum-electrodynamics realizations"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review A",
      "year": 2013,
      "month": "Aug",
      "volume": 88,
      "number": 2,
      "pages": "022303"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 10,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2013PhRvA..88b2303H"
    }
  }
}