{
  "id": "1106.0276",
  "version": "v1",
  "published": "2011-06-01T18:31:02.000Z",
  "updated": "2011-06-01T18:31:02.000Z",
  "title": "Full counting statistics of energy fluctuations in a driven quantum resonator",
  "authors": [
    "Aashish A. Clerk"
  ],
  "comment": "10 pages, 2 figures",
  "journal": "Phys. Rev. A 84, 043824 (2011)",
  "doi": "10.1103/PhysRevA.84.043824",
  "categories": [
    "cond-mat.mes-hall",
    "quant-ph"
  ],
  "abstract": "We consider the statistics of time-integrated energy fluctuations of a driven bosonic resonator (as measured by a QND detector), using the standard Keldysh prescription to define higher moments. We find that due to an effective cascading of fluctuations, these statistics are surprisingly non-classical: the low-temperature, quantum probability distribution is not equivalent to the high-temperature classical distribution evaluated at some effective temperature. Moreover, for a sufficiently large drive detuning and low temperatures, the Keldysh-ordered quasi-probability distribution characterizing these fluctuations fails to be positive-definite; this is similar to the full counting statistics of charge in superconducting systems. We argue that this indicates a kind of non-classical behaviour akin to that tested by Leggett-Garg inequalities.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2011-06-01T18:31:02.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "42.50.Lc",
      "72.70.+m"
    ],
    "keywords": [
      "full counting statistics",
      "driven quantum resonator",
      "energy fluctuations",
      "quantum probability distribution",
      "define higher moments"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review A",
      "year": 2011,
      "month": "Oct",
      "volume": 84,
      "number": 4,
      "pages": "043824"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 10,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2011PhRvA..84d3824C"
    }
  }
}