{
  "id": "1205.2160",
  "version": "v1",
  "published": "2012-05-10T05:10:08.000Z",
  "updated": "2012-05-10T05:10:08.000Z",
  "title": "Readout of superconducting flux qubit state with a Cooper pair box",
  "authors": [
    "Mun Dae Kim",
    "K. Moon"
  ],
  "comment": "to appear in J. Phys.:Condensed Matter",
  "categories": [
    "cond-mat.mes-hall",
    "quant-ph"
  ],
  "abstract": "We study a readout scheme of superconducting flux qubit state with a Cooper pair box as a transmon. The qubit states consist of the superpositions of two degenerate states where the charge and phase degrees of freedom are entangled. Owing to the robustness of transmon against external fluctuations, our readout scheme enables the quantum non-demolition and single-shot measurement of flux qubit states. The qubit state readout can be performed by using the non-linear Josephson amplifiers after a $\\pi/2$-rotation driven by an ac-electric field.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2012-05-10T05:10:08.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "superconducting flux qubit state",
      "cooper pair box",
      "qubit states consist",
      "non-linear josephson amplifiers",
      "qubit state readout"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "doi": "10.1088/0953-8984/24/22/225305",
      "journal": "Journal of Physics Condensed Matter",
      "year": 2012,
      "month": "Jun",
      "volume": 24,
      "number": 22,
      "pages": 225305
    },
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2012JPCM...24v5305K"
    }
  }
}