{
  "annotation_id": "b7b4d245-2321-4932-91e0-d21d4a030863",
  "date_created": "2026-03-02T18:01:49.079000Z",
  "date_modified": "2026-03-02T18:01:49.079000Z",
  "file_hash": "1d8fa4c7eb5a9b42d1ade72e36cceabf636cad1b66945d31fa1ea2a8108a4b4f",
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  "record": {
    "abstract": "We construct an optimal quantum universal variable-length code that achieves\nthe admissible minimum rate, i.e., our code is used for any probability\ndistribution of quantum states. Its probability of exceeding the admissible\nminimum rate exponentially goes to 0. Our code is optimal in the sense of its\nexponent. In addition, its average error asymptotically tends to 0.",
    "arxiv_id": "quant-ph/0202001",
    "authors": [
      "Masahito Hayashi",
      "Keiji Matsumoto"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.66.022311",
    "journal_ref": "Physical Review A, Vol.66, 022311 (2002)",
    "title": "Quantum universal variable-length source coding",
    "url": "https://arxiv.org/abs/quant-ph/0202001"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "82571461-e164-4d8c-a611-475a02fcb78c",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}