{
  "annotation_id": "e2084bc4-0de2-4a1d-8b39-372964d52725",
  "date_created": "2026-03-02T18:02:26.516000Z",
  "date_modified": "2026-03-02T18:02:26.516000Z",
  "file_hash": "6809badba19551c11903e64578d16c4fbfb5c2bb9adf5dd7545e8ceba95cda80",
  "private": false,
  "record": {
    "abstract": "Decoy states have recently been proposed as a useful method for substantially\nimproving the performance of quantum key distribution protocols when a coherent\nstate source is used. Previously, data post-processing schemes based on one-way\nclassical communications were considered for use with decoy states. In this\npaper, we develop two data post-processing schemes for the decoy-state method\nusing two-way classical communications. Our numerical simulation (using\nparameters from a specific QKD experiment as an example) results show that our\nscheme is able to extend the maximal secure distance from 142km (using only\none-way classical communications with decoy states) to 181km. The second scheme\nis able to achieve a 10% greater key generation rate in the whole regime of\ndistances.",
    "arxiv_id": "quant-ph/0604094",
    "authors": [
      "Xiongfeng Ma",
      "Chi-Hang Fred Fung",
      "Fr\u00e9d\u00e9ric Dupuis",
      "Kai Chen",
      "Kiyoshi Tamaki",
      "Hoi-Kwong Lo"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.74.032330",
    "journal_ref": "PHYSICAL REVIEW A 74, 032330 (2006)",
    "title": "Decoy state quantum key distribution with two-way classical   post-processing",
    "url": "https://arxiv.org/abs/quant-ph/0604094"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "9f9c5710-6502-4697-8b88-3ac8e34a1d2b",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}