{
  "annotation_id": "b6e65bb6-4664-4fc1-bba8-9ebb1b948167",
  "date_created": "2026-03-02T18:02:13.805000Z",
  "date_modified": "2026-03-02T18:02:13.805000Z",
  "file_hash": "5eb6aad6401cc1701e485535762952528fa5974581c9059a207ab291dbf464d6",
  "private": false,
  "record": {
    "abstract": "We demonstrate a weak pulse quantum key distribution system using the BB84\nprotocol which is secure against all individual attacks, including photon\nnumber splitting. By carefully controlling the weak pulse intensity we\ndemonstrate the maximum secure bit rate as a function of the fibre length.\nUnconditionally secure keys can be formed for standard telecom fibres exceeding\n50 km in length.",
    "arxiv_id": "quant-ph/0412173",
    "authors": [
      "C. Gobby",
      "Z. L. Yuan",
      "A. J. Shields"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1049/el:20045038",
    "journal_ref": "Electronics Letters 40, 1603-1605(2004)",
    "title": "Unconditionally secure quantum key distribution over 50km of standard   telecom fibre",
    "url": "https://arxiv.org/abs/quant-ph/0412173"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "6bcb72e7-c3b3-4b6d-86d5-643b309303dd",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}