{
  "id": "1403.0368",
  "version": "v1",
  "published": "2014-03-03T10:21:48.000Z",
  "updated": "2014-03-03T10:21:48.000Z",
  "title": "Comment on \"Noise and Disturbance in Quantum Measurements: An Information-Theoretic Approach\"",
  "authors": [
    "P. Busch",
    "P. Lahti",
    "R. F. Werner"
  ],
  "categories": [
    "quant-ph"
  ],
  "abstract": "In this comment on the work of F. Buscemi, M.J.W. Hall, M. Ozawa and M.M. Wilde [PRL 112, 050401, 2014, arXiv:1310.6603], we point out a misrepresentation of measures of error and disturbance introduced in our recent work [PRL 111, 160405, 2013, arXiv:1306.1565] as being \"purely formal, with no operational counterparts\". We also exhibit an tension in the authors' message, in that their main result is an error-disturbance relation for state-independent measures, but its importance is declared to be limited to discrete variables. In contrast, we point out the separate roles played by such relations for either state-dependent or state-independent measures of error and disturbance.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2014-03-03T10:21:48.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "quantum measurements",
      "information-theoretic approach",
      "state-independent measures",
      "discrete variables",
      "operational counterparts"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2014arXiv1403.0368B"
    }
  }
}