{
  "annotation_id": "1ca9ecba-3f6a-4afb-a092-79eae441a488",
  "date_created": "2026-03-02T18:02:05.878000Z",
  "date_modified": "2026-03-02T18:02:05.878000Z",
  "file_hash": "d1b22200a5ab29bf79672a30861eab735d196d28b05790fb84f80f3b07085bcd",
  "private": false,
  "record": {
    "abstract": "We prove the unconditional security of a quantum key distribution protocol in\nwhich bit values are encoded in the phase of a weak coherent-state pulse\nrelative to a strong reference pulse. In contrast to implementations in which a\nweak pulse is used as a substitute for a single-photon source, the achievable\nkey rate is found to decrease only linearly with the transmission of the\nchannel.",
    "arxiv_id": "quant-ph/0403131",
    "authors": [
      "Masato Koashi"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.93.120501",
    "title": "Unconditional security of coherent-state quantum key distribution with   strong phase-reference pulse",
    "url": "https://arxiv.org/abs/quant-ph/0403131"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "092551ca-ca43-48ce-b766-9994abe3afdf",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}