{
  "id": "1502.05095",
  "version": "v1",
  "published": "2015-02-18T01:27:21.000Z",
  "updated": "2015-02-18T01:27:21.000Z",
  "title": "Experimental Detection of Entanglement Polytopes via Local Filters",
  "authors": [
    "Yuanyuan Zhao",
    "Markus Grass",
    "Bei Zeng",
    "Guoyong Xiang",
    "Chao Zhang",
    "Chuanfeng Li",
    "Guangcan Guo"
  ],
  "comment": "9 pages, 5 figures, 4 tables. Comments are welcome",
  "categories": [
    "quant-ph"
  ],
  "abstract": "Entanglement polytopes result in finitely many types of entanglement that can be detected by only measuring single-particle spectra. With high probability, however, the local spectra lie in more than one polytope, hence providing no information about the entanglement type. To overcome this problem, we propose to additionally use local filters. We experimentally demonstrate the detection of entanglement polytopes in a four-qubit system. Using local filters we can distinguish the entanglement type of states with the same single particle spectra, but which belong to different polytopes.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2015-02-18T01:27:21.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "local filters",
      "experimental detection",
      "entanglement type",
      "local spectra lie",
      "entanglement polytopes result"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 9,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}