{
  "annotation_id": "70ca73a5-e69a-4481-b660-36a390ff7b3d",
  "date_created": "2026-03-02T18:02:33.708000Z",
  "date_modified": "2026-03-02T18:02:33.708000Z",
  "file_hash": "ee64d01c8d252658284fa588134f455d4fe8577bf92014849c87d480d0f9208c",
  "private": false,
  "record": {
    "abstract": "We develop a general theory for quantum key distribution (QKD) in both the\nforward error correction and the reverse error correction cases when the QKD\nsystem is equipped with phase-randomized coherent light with arbitrary number\nof decoy intensities. For this purpose, generalizing Wang\u0027s expansion, we\nderive a convex expansion of the phase-randomized coherent state. We also\nnumerically check that the asymptotic key generation rates are almost saturated\nwhen the number of decoy intensities is three.",
    "arxiv_id": "quant-ph/0702251",
    "authors": [
      "Masahito Hayashi"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1088/1367-2630/9/8/284",
    "journal_ref": "New J. Phys. 9 284 (2007)",
    "title": "General theory for decoy-state quantum key distribution with arbitrary   number of intensities",
    "url": "https://arxiv.org/abs/quant-ph/0702251"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "ec84481f-cf92-4e0f-9f9e-80332feb699d",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}