{
  "id": "1310.6603",
  "version": "v3",
  "published": "2013-10-24T13:16:25.000Z",
  "updated": "2014-01-17T02:54:16.000Z",
  "title": "Noise and disturbance in quantum measurements: an information-theoretic approach",
  "authors": [
    "Francesco Buscemi",
    "Michael J. W. Hall",
    "Masanao Ozawa",
    "Mark M. Wilde"
  ],
  "comment": "v3: to appear on PRL (some issues fixed, supplemental material expanded). v2: replaced with submitted version; 5 two-column pages + 6 one-column pages + 3 figures; one issue corrected and few references added. v1: 17 pages, 3 figures",
  "journal": "Physical Review Letters 112, 050401 (February 2014)",
  "doi": "10.1103/PhysRevLett.112.050401",
  "categories": [
    "quant-ph"
  ],
  "abstract": "We introduce information-theoretic definitions for noise and disturbance in quantum measurements and prove a state-independent noise-disturbance tradeoff relation that these quantities have to satisfy in any conceivable setup. Contrary to previous approaches, the information-theoretic quantities we define are invariant under relabelling of outcomes, and allow for the possibility of using quantum or classical operations to `correct' for the disturbance. We also show how our bound implies strong tradeoff relations for mean square deviations.",
  "revisions": [
    {
      "version": "v3",
      "updated": "2014-01-17T02:54:16.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "03.65.Ta",
      "03.67.Pp",
      "05.40.Ca"
    ],
    "keywords": [
      "quantum measurements",
      "information-theoretic approach",
      "bound implies strong tradeoff relations",
      "state-independent noise-disturbance tradeoff relation",
      "mean square deviations"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review Letters",
      "year": 2014,
      "month": "Feb",
      "volume": 112,
      "number": 5,
      "pages": "050401"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 17,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2014PhRvL.112e0401B"
    }
  }
}