{
  "id": "1108.1493",
  "version": "v2",
  "published": "2011-08-06T16:13:25.000Z",
  "updated": "2011-11-18T11:19:59.000Z",
  "title": "Entanglement witness operator for quantum teleportation",
  "authors": [
    "Nirman Ganguly",
    "Satyabrata Adhikari",
    "A. S. Majumdar",
    "Jyotishman Chatterjee"
  ],
  "comment": "Minor revisions to match the published version. Accepted for publication in Physical Review Letters",
  "journal": "Phys. Rev. Lett. 107, 270501(2011)",
  "categories": [
    "quant-ph"
  ],
  "abstract": "The ability of entangled states to act as resource for teleportation is linked to a property of the fully entangled fraction. We show that the set of states with their fully entangled fraction bounded by a threshold value required for performing teleportation is both convex and compact. This feature enables for the existence of hermitian witness operators the measurement of which could distinguish unknown states useful for performing teleportation. We present an example of such a witness operator illustrating it for different classes of states.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2011-11-18T11:19:59.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "03.67.Mn",
      "03.67.Hk"
    ],
    "keywords": [
      "entanglement witness operator",
      "quantum teleportation",
      "fully entangled fraction",
      "performing teleportation",
      "hermitian witness operators"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review Letters",
      "doi": "10.1103/PhysRevLett.107.270501",
      "year": 2011,
      "month": "Dec",
      "volume": 107,
      "number": 27,
      "pages": 270501
    },
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2011PhRvL.107A0501G"
    }
  }
}