{
  "id": "1711.07674",
  "version": "v1",
  "published": "2017-11-21T08:17:57.000Z",
  "updated": "2017-11-21T08:17:57.000Z",
  "title": "Disturbance by optimal discrimination",
  "authors": [
    "Ryuitiro Kawakubo",
    "Tatsuhiko Koike"
  ],
  "categories": [
    "quant-ph"
  ],
  "abstract": "We show that any optimal unambiguous discrimination changes distinguishable states indistinguishable when the inconclusive outcome is obtained, which was proved under restricted conditions by Chefles [Phys. Lett. A 239, 339 (1998)]. Our proof is based on a simple observation which makes it easy and removes its restrictions. The method may have a wide variety of applications in contexts other than state discrimination.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2017-11-21T08:17:57.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "optimal discrimination",
      "disturbance",
      "unambiguous discrimination changes distinguishable states",
      "discrimination changes distinguishable states indistinguishable",
      "state discrimination"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}