{
  "id": "0901.1488",
  "version": "v4",
  "published": "2009-01-12T00:34:08.000Z",
  "updated": "2009-08-13T20:33:28.000Z",
  "title": "Quantum Teamwork for Unconditional Multiparty Communication with Gaussian States",
  "authors": [
    "Jing Zhang",
    "Gerardo Adesso",
    "Changde Xie",
    "Kunchi Peng"
  ],
  "comment": "4+2 pages, 2 figures. Published version with appendix",
  "journal": "Phys. Rev. Lett. 103, 070501 (2009)",
  "doi": "10.1103/PhysRevLett.103.070501",
  "categories": [
    "quant-ph"
  ],
  "abstract": "We demonstrate the capability of continuous variable Gaussian states to communicate multipartite quantum information. A quantum teamwork protocol is presented according to which an arbitrary possibly entangled multimode state can be faithfully teleported between two teams each comprising many cooperative users. We prove that N-mode Gaussian weighted graph states exist for arbitrary N, that enable unconditional quantum teamwork implementations for any arrangement of the teams. These perfect continuous variable maximally multipartite entangled resources are typical among pure Gaussian states and are unaffected by the entanglement frustration occurring in multiqubit states.",
  "revisions": [
    {
      "version": "v4",
      "updated": "2009-08-13T20:33:28.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "03.67.Hk",
      "03.65.Ud",
      "03.67.Mn",
      "42.50.Dv"
    ],
    "keywords": [
      "unconditional multiparty communication",
      "gaussian states",
      "unconditional quantum teamwork implementations",
      "gaussian weighted graph states",
      "maximally multipartite entangled resources"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review Letters",
      "year": 2009,
      "month": "Aug",
      "volume": 103,
      "number": 7,
      "pages": "070501"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 2,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2009PhRvL.103g0501Z"
    }
  }
}