{
  "annotation_id": "8a420880-b204-479f-82dd-6ecce6948d33",
  "date_created": "2026-03-02T18:02:03.603000Z",
  "date_modified": "2026-03-02T18:02:03.603000Z",
  "file_hash": "d1ba49a0b2d2ab003282078b77b2f8ebbd9f90dd79d055480f022931d4319f0c",
  "private": false,
  "record": {
    "abstract": "We report quantum communications channel using photon number correlated twin\nbeams. The twin beams are generated from a nondegenerate optical parametric\noscillator, and the photon number difference is used to encode the signal. The\nbit error rate of our system will be 0.067 by using the twin beams comparing\nwith 0.217 by using the coherent state as the signal carrier.",
    "arxiv_id": "quant-ph/0401033",
    "authors": [
      "Yun Zhang",
      "Katsuyuki Kasai",
      "Kazuhiro Hayasaka"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1364/OE.11.003592",
    "journal_ref": "Optics, Express 11, 3592 (2003)",
    "title": "Quantum channel using photon number correlated twin beams",
    "url": "https://arxiv.org/abs/quant-ph/0401033"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "d1a98648-0e30-4346-9922-bf9919aabbcf",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}