{
  "annotation_id": "e4b8d11c-81e2-4c9f-bb35-dedb10a66c34",
  "date_created": "2026-03-02T18:02:29.949000Z",
  "date_modified": "2026-03-02T18:02:29.949000Z",
  "file_hash": "370a8165cc336aa241bc19edc8416d1bf96b791205ad5431ee72028ada16a77c",
  "private": false,
  "record": {
    "abstract": "We present the design of a novel free-space quantum cryptography system,\ncomplete with purpose-built software, that can operate in daylight conditions.\nThe transmitter and receiver modules are built using inexpensive off-the-shelf\ncomponents. Both modules are compact allowing the generation of renewed shared\nsecrets on demand over a short range of a few metres. An analysis of the\nsoftware is shown as well as results of error rates and therefore shared secret\nyields at varying background light levels. As the system is designed to\neventually work in short-range consumer applications, we also present a use\nscenario where the consumer can regularly \u0027top up\u0027 a store of secrets for use\nin a variety of one-time-pad and authentication protocols.",
    "arxiv_id": "quant-ph/0608213",
    "authors": [
      "J. L. Duligall",
      "M. S. Godfrey",
      "K. A. Harrison",
      "W. J. Munro",
      "J. G. Rarity"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1088/1367-2630/8/10/249",
    "journal_ref": "New J. Phys. 8 (2006) 249",
    "title": "Low Cost and Compact Quantum Cryptography",
    "url": "https://arxiv.org/abs/quant-ph/0608213"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "0c1e5938-cea0-43a9-b13a-cf789f11b31e",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}