{
  "annotation_id": "7f23f9ba-87c4-41cc-9240-0a1e14625a4a",
  "date_created": "2026-03-02T18:01:55.589000Z",
  "date_modified": "2026-03-02T18:01:55.589000Z",
  "file_hash": "7e86c30236986df4d84ad883fe7639868df3edb589cdfa94c963a125ac529d7a",
  "private": false,
  "record": {
    "abstract": "A quantum cryptography scheme based on entanglement between a single particle\nstate and a vacuum state is proposed. The scheme utilizes linear optics devices\nto detect the superposition of the vacuum and single particle states. Existence\nof an eavesdropper can be detected by using a variant of Bell\u0027s inequality.",
    "arxiv_id": "quant-ph/0301131",
    "authors": [
      "Jae-Weon Lee",
      "Eok Kyun Lee",
      "Yong Wook Chung",
      "Hai-Woong Lee",
      "Jaewan Kim"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.68.012324",
    "journal_ref": "Phys. Rev. A 68, 012324 (2003)",
    "title": "Quantum Cryptography Using Single Particle Entanglement",
    "url": "https://arxiv.org/abs/quant-ph/0301131"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "5b429a47-18a3-47ba-8019-50d760aaa892",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}