{
  "annotation_id": "04f91f65-50b7-4d63-b7e9-807c082af414",
  "date_created": "2026-03-02T18:02:29.888000Z",
  "date_modified": "2026-03-02T18:02:29.888000Z",
  "file_hash": "25a066bc2e2e64379f13aba7e8bb74e1fd9e2808b855640f279b851fda8f7787",
  "private": false,
  "record": {
    "abstract": "Use of low-noise detectors can both increase the secret bit rate of\nlong-distance quantum key distribution (QKD) and dramatically extend the length\nof a fibre optic link over which secure key can be distributed. Previous work\nhas demonstrated use of ultra-low-noise transition-edge sensors (TESs) in a QKD\nsystem with transmission over 50 km. In this work, we demonstrate the potential\nof the TESs by successfully generating error-corrected, privacy-amplified key\nover 148.7 km of dark optical fibre at a mean photon number mu = 0.1, or 184.6\nkm of dark optical fibre at a mean photon number of 0.5. We have also exchanged\nsecret key over 67.5 km that is secure against powerful photon-number-splitting\nattacks.",
    "arxiv_id": "quant-ph/0607177",
    "authors": [
      "P. A. Hiskett",
      "D. Rosenberg",
      "C. G. Peterson",
      "R. J. Hughes",
      "S. Nam",
      "A. E. Lita",
      "A. J. Miller",
      "J. E. Nordholt"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1088/1367-2630/8/9/193",
    "title": "Long-distance quantum key distribution in optical fiber",
    "url": "https://arxiv.org/abs/quant-ph/0607177"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "21382198-1f88-4edd-a887-d2f797700ae6",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}