{
  "id": "0709.1982",
  "version": "v1",
  "published": "2007-09-13T03:30:44.000Z",
  "updated": "2007-09-13T03:30:44.000Z",
  "title": "Entanglement detection via condition of quantum correlation",
  "authors": [
    "Che-Ming Li",
    "Li-Yi Hsu",
    "Yueh-Nan Chen",
    "Der-San Chuu",
    "Tobias Brandes"
  ],
  "journal": "PHYSICAL REVIEW A 76, 032313 2007",
  "doi": "10.1103/PhysRevA.76.032313",
  "categories": [
    "quant-ph"
  ],
  "abstract": "We develop a novel necessary condition of quantum correlation. It is utilized to construct $d$-level bipartite Bell-type inequality which is strongly resistant to noise and requires only analyses of $O(d)$ measurement outcomes compared to the previous result $O(d^{2})$. Remarkably, a connection between the arbitrary high-dimensional bipartite Bell-type inequality and entanglement witnesses is found. Through the necessary condition of quantum correlation, we propose that the witness operators to detect truly multipartite entanglement for a generalized Greenberger-Horne-Zeilinger (GHZ) state with two local measurement settings and a four-qubit singlet state with three settings. Moreover, we also propose the first robust entanglement witness to detect four-level tripartite GHZ state with only two local measurement settings.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2007-09-13T03:30:44.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "03.67.Mn",
      "03.65.Ud"
    ],
    "keywords": [
      "quantum correlation",
      "entanglement detection",
      "local measurement settings",
      "arbitrary high-dimensional bipartite bell-type inequality",
      "detect four-level tripartite ghz state"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review A",
      "year": 2007,
      "month": "Sep",
      "volume": 76,
      "number": 3,
      "pages": "032313"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2007PhRvA..76c2313L"
    }
  }
}