{
  "id": "0807.0797",
  "version": "v1",
  "published": "2008-07-04T19:36:55.000Z",
  "updated": "2008-07-04T19:36:55.000Z",
  "title": "Landau-Zener Transitions in an Adiabatic Quantum Computer",
  "authors": [
    "J. Johansson",
    "M. H. S. Amin",
    "A. J. Berkley",
    "P. Bunyk",
    "V. Choi",
    "R. Harris",
    "M. W. Johnson",
    "T. M. Lanting",
    "Seth Lloyd",
    "G. Rose"
  ],
  "comment": "4 pages, 4 figures",
  "journal": "Phys. Rev. B 80, 012507 (2009)",
  "doi": "10.1103/PhysRevB.80.012507",
  "categories": [
    "cond-mat.mes-hall",
    "cond-mat.supr-con",
    "quant-ph"
  ],
  "abstract": "We report an experimental measurement of Landau-Zener transitions on an individual flux qubit within a multi-qubit superconducting chip designed for adiabatic quantum computation. The method used isolates a single qubit, tunes its tunneling amplitude Delta into the limit where Delta is much less than both the temperature T and the decoherence-induced energy level broadening, and forces it to undergo a Landau-Zener transition. We find that the behavior of the qubit agrees to a high degree of accuracy with theoretical predictions for Landau-Zener transition probabilities for a double-well quantum system coupled to 1/f magnetic flux noise.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2008-07-04T19:36:55.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "85.25.Cp",
      "85.25.Dq",
      "03.67.Lx"
    ],
    "keywords": [
      "adiabatic quantum computer",
      "magnetic flux noise",
      "individual flux qubit",
      "landau-zener transition probabilities",
      "double-well quantum system"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review B",
      "year": 2009,
      "month": "Jul",
      "volume": 80,
      "number": 1,
      "pages": "012507"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 4,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2009PhRvB..80a2507J"
    }
  }
}