{
  "id": "quant-ph/0303117",
  "version": "v1",
  "published": "2003-03-19T06:11:05.000Z",
  "updated": "2003-03-19T06:11:05.000Z",
  "title": "Accessible Information and Quantum operations",
  "authors": [
    "Qing-yu Cai"
  ],
  "categories": [
    "quant-ph"
  ],
  "abstract": "The accessible information decreases under quantum operations. We analyzed the connection between quantum operations and accessible information. We show that a general quantum process cannot be operated accurately. Futhermore, an unknown state of a closed quantum system can not be operated arbitrarily by a unitary quantum operation.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2003-03-19T06:11:05.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "general quantum process",
      "unitary quantum operation",
      "unknown state",
      "closed quantum system",
      "accessible information decreases"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2003quant.ph..3117C"
    }
  }
}