{
  "id": "0907.0699",
  "version": "v2",
  "published": "2009-07-03T19:37:41.000Z",
  "updated": "2009-10-09T07:24:44.000Z",
  "title": "Probing the quantumness of channels with mixed states",
  "authors": [
    "Hauke Häseler",
    "Norbert Lütkenhaus"
  ],
  "comment": "11 Pages, 9 Figures, published version",
  "journal": "Physical Review A {\\bf 80}, 042304 (2009)",
  "doi": "10.1103/PhysRevA.80.042304",
  "categories": [
    "quant-ph"
  ],
  "abstract": "We present an alternative approach to the derivation of benchmarks for quantum channels, such as memory or teleportation channels. Using the concept of effective entanglement and the verification thereof, a testing procedure is derived which demands very few experimental resources. The procedure is generalized by allowing for mixed test states. By constructing optimized measure & re-prepare channels, the benchmarks are found to be very tight in the considered experimental regimes.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2009-10-09T07:24:44.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "03.67.Hk",
      "03.67.Mn",
      "42.50.Xa"
    ],
    "keywords": [
      "mixed states",
      "quantumness",
      "verification thereof",
      "experimental regimes",
      "re-prepare channels"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review A",
      "year": 2009,
      "month": "Oct",
      "volume": 80,
      "number": 4,
      "pages": "042304"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 11,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2009PhRvA..80d2304H"
    }
  }
}