{
  "annotation_id": "9b271028-cace-48fc-a64c-7248e731458b",
  "date_created": "2026-03-02T18:02:13.807000Z",
  "date_modified": "2026-03-02T18:02:13.807000Z",
  "file_hash": "1da55ca771c1146a6084c4f8aa582d67197e042ee8222c64f2e8ec5b459c24ac",
  "private": false,
  "record": {
    "abstract": "We report free-space distribution of entangled photon pairs over a noisy\nground atmosphere of 13km. It is shown that the desired entanglement can still\nsurvive after the two entangled photons have passed through the noisy ground\natmosphere. This is confirmed by observing a space-like separated violation of\nBell inequality of $2.45 \\pm 0.09$. On this basis, we exploit the distributed\nentangled photon source to demonstrate the BB84 quantum cryptography scheme.\nThe distribution distance of entangled photon pairs achieved in the experiment\nis for the first time well beyond the effective thickness of the aerosphere,\nhence presenting a significant step towards satellite-based global quantum\ncommunication.",
    "arxiv_id": "quant-ph/0412218",
    "authors": [
      "Cheng-Zhi Peng",
      "Tao Yang",
      "Xiao-Hui Bao",
      "Jun-Zhang",
      "Xian-Min Jin",
      "Fa-Yong Feng",
      "Bin Yang",
      "Jian Yang",
      "Juan Yin",
      "Qiang Zhang",
      "Nan Li",
      "Bao-Li Tian",
      "Jian-Wei Pan"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.94.150501",
    "journal_ref": "Phy. Rev. Lett. 94, 150501 (2005)",
    "title": "Experimental Free-Space Distribution of Entangled Photon Pairs over a   Noisy Ground Atmosphere of 13km",
    "url": "https://arxiv.org/abs/quant-ph/0412218"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "e602ff09-3ba4-4196-9045-c49ef5e6ad7f",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}