{
  "id": "0705.1813",
  "version": "v2",
  "published": "2007-05-13T13:15:50.000Z",
  "updated": "2007-06-30T04:16:05.000Z",
  "title": "Entropy exchange, coherent information and concurrence",
  "authors": [
    "Yang Xiang",
    "Shi-Jie Xiong"
  ],
  "comment": "4 pages, 8 figures v2: version accepted for publication in Phys. Rev. A",
  "journal": "Phys. Rev. A 76, 014306 (2007)",
  "doi": "10.1103/PhysRevA.76.014306",
  "categories": [
    "quant-ph"
  ],
  "abstract": "For a simple model we derive analytic expressions of entropy exchange and coherent information, from which relations between them and the concurrence are drawn. We find that in the quantum evolution the entropy exchange exhibits behavior \\textsl{opposite} to that of the concurrence, whereas the coherent information shows features very similar to those of the concurrence. The meaning of this result for general systems is discussed.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2007-06-30T04:16:05.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "03.67.Mn",
      "03.65.Ud"
    ],
    "keywords": [
      "coherent information",
      "entropy exchange",
      "concurrence",
      "general systems",
      "simple model"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review A",
      "year": 2007,
      "month": "Jul",
      "volume": 76,
      "number": 1,
      "pages": "014306"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 4,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2007PhRvA..76a4306X"
    }
  }
}