{
  "annotation_id": "e5db0280-19bf-4071-845b-30563e420569",
  "date_created": "2026-03-02T18:01:52.627000Z",
  "date_modified": "2026-03-02T18:01:52.627000Z",
  "file_hash": "fe659bfa329f7642724e4e0343ea1ba325e96c366327801123d2d04e1b16110a",
  "private": false,
  "record": {
    "abstract": "A novel secure communication protocol is presented, based on an entangled\npair of qubits and allowing asymptotically secure key distribution and\nquasi-secure direct communication. Since the information is transferred in a\ndeterministic manner, no qubits have to be discarded. The transmission of\ninformation is instantaneous, i.e. the information can be decoded during the\ntransmission. The security against arbitrary eavesdropping attacks is provided.\nIn case of eavesdropping attacks with full information gain, the detection rate\nis 50% per control transmission. The experimental realization of the protocol\nis feasible with relatively small effort, which also makes commercial\napplications conceivable.",
    "arxiv_id": "quant-ph/0209040",
    "authors": [
      "Kim Bostroem",
      "Timo Felbinger"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.89.187902",
    "journal_ref": "Phys. Rev. Lett. 89, 187902 (2002)",
    "title": "Deterministic Secure Direct Communication Using Entanglement",
    "url": "https://arxiv.org/abs/quant-ph/0209040"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "e082c5ca-3daf-4c67-8806-44188b6bf168",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}