{
  "annotation_id": "f1518794-aab5-49d8-80e2-b1684622473b",
  "date_created": "2026-03-02T18:01:59.751000Z",
  "date_modified": "2026-03-02T18:01:59.751000Z",
  "file_hash": "03423bb099e2a54b78a51989a78695f410bab61deb81598cd51afa01a5f3ec20",
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  "record": {
    "abstract": "The classical capacity of the lossy bosonic channel is calculated exactly. It\nis shown that its Holevo information is not superadditive, and that a\ncoherent-state encoding achieves capacity. The capacity of far-field,\nfree-space optical communications is given as an example.",
    "arxiv_id": "quant-ph/0308012",
    "authors": [
      "Vittorio Giovannetti",
      "Saikat Guha",
      "Seth Lloyd",
      "Lorenzo Maccone",
      "Jeffrey H. Shapiro",
      "Horace P. Yuen"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.92.027902",
    "journal_ref": "Phys. Rev. Lett. 92, 027902 (2004).",
    "title": "Classical capacity of the lossy bosonic channel: the exact solution",
    "url": "https://arxiv.org/abs/quant-ph/0308012"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "8b648c2d-494c-48e8-b635-bcb864a4316c",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}