{
  "id": "0909.5152",
  "version": "v1",
  "published": "2009-09-28T17:33:40.000Z",
  "updated": "2009-09-28T17:33:40.000Z",
  "title": "Local unitary equivalence of multipartite pure states",
  "authors": [
    "B. Kraus"
  ],
  "comment": "5 pages",
  "journal": "Phys. Rev. Lett. 104, 020504 (2010)",
  "categories": [
    "quant-ph"
  ],
  "abstract": "Necessary and sufficient conditions for the equivalence of arbitrary n-qubit pure quantum states under Local Unitary (LU) operations are derived. First, an easily computable standard form for multipartite states is introduced. Two generic states are shown to be LU-equivalent iff their standard forms coincide. The LU-equivalence problem for non--generic states is solved by presenting a systematic method to determine the LU operators (if they exist) which interconvert the two states.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2009-09-28T17:33:40.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "03.67.-a",
      "03.65.Ud"
    ],
    "keywords": [
      "multipartite pure states",
      "local unitary equivalence",
      "arbitrary n-qubit pure quantum states",
      "standard forms coincide",
      "multipartite states"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review Letters",
      "doi": "10.1103/PhysRevLett.104.020504",
      "year": 2010,
      "month": "Jan",
      "volume": 104,
      "number": 2,
      "pages": "020504"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 5,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2010PhRvL.104b0504K"
    }
  }
}