{
  "id": "1205.2024",
  "version": "v2",
  "published": "2012-05-09T16:30:55.000Z",
  "updated": "2013-01-28T15:17:34.000Z",
  "title": "Quantum teleportation and entanglement distribution over 100-kilometre free-space channels",
  "authors": [
    "Juan Yin",
    "Ji-Gang Ren",
    "He Lu",
    "Yuan Cao",
    "Hai-Lin Yong",
    "Yu-Ping Wu",
    "Chang Liu",
    "Sheng-Kai Liao",
    "Fei Zhou",
    "Yan Jiang",
    "Xin-Dong Cai",
    "Ping Xu",
    "Ge-Sheng Pan",
    "Jian-Jun Jia",
    "Yong-Mei Huang",
    "Hao Yin",
    "Jian-Yu Wang",
    "Yu-Ao Chen",
    "Cheng-Zhi Peng",
    "Jian-Wei Pan"
  ],
  "comment": "9 pages, 8 figures",
  "journal": "Nature 488 185-188 (2012)",
  "doi": "10.1038/nature11332",
  "categories": [
    "quant-ph"
  ],
  "abstract": "A long standing goal for quantum communication is to transfer a quantum state over arbitrary distances. Free-space quantum communication provides a promising solution towards this challenging goal. Here, through a 97-km free space channel, we demonstrate long distance quantum teleportation over a 35-53 dB loss one-link channel, and entanglement distribution over a 66-85 dB high-loss two-link channel. We achieve an average fidelity of {80.4(9)}% for teleporting six distinct initial states and observe the violation of the Clauser-Horne-Shimony-Holt inequality after distributing entanglement. Besides being of fundamental interest, our result represents a significant step towards a global quantum network. Moreover, the high-frequency and high-accuracy acquiring, pointing and tracking technique developed in our experiment provides an essential tool for future satellite-based quantum communication.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2013-01-28T15:17:34.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "entanglement distribution",
      "free-space channels",
      "demonstrate long distance quantum teleportation",
      "db loss one-link channel",
      "db high-loss two-link channel"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "journal": "Nature",
      "year": 2012,
      "month": "Aug",
      "volume": 488,
      "number": 7410,
      "pages": 185
    },
    "note": {
      "typesetting": "TeX",
      "pages": 9,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2012Natur.488..185Y"
    }
  }
}