{
  "annotation_id": "92e615fa-533d-4503-8f57-bf2d46dceb4f",
  "date_created": "2026-03-02T18:02:17.248000Z",
  "date_modified": "2026-03-02T18:02:17.248000Z",
  "file_hash": "ad156737b44d760b1d05ae27418cba450029f8b05a86d082bc08c183f3d277c4",
  "private": false,
  "record": {
    "abstract": "We consider the cloning of sequences of qubits prepared in the states used in\nthe BB84 or 6-state quantum cryptography protocol, and show that the\nsingle-qubit fidelity is unaffected even if entire sequences of qubits are\nprepared in the same basis. This result is of great importance for practical\nquantum cryptosystems because it reduces the need for high-speed random number\ngeneration without impairing on the security against finite-size attacks.",
    "arxiv_id": "quant-ph/0507058",
    "authors": [
      "L. -P. Lamoureux",
      "H. Bechmann-Pasquinucci",
      "N. J. Cerf",
      "N. Gisin",
      "C. Macchiavello"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.73.032304",
    "journal_ref": "Phys. Rev. A 73, 032304 (2006)",
    "title": "Reduced randomness in quantum cryptography with sequences of qubits   encoded in the same basis",
    "url": "https://arxiv.org/abs/quant-ph/0507058"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "01d2b29a-42e6-4d49-9044-53c72a19f3c5",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}