{
  "annotation_id": "55f9ee86-517c-4372-95a2-d6673bc594a1",
  "date_created": "2026-03-02T18:01:46.068000Z",
  "date_modified": "2026-03-02T18:01:46.068000Z",
  "file_hash": "0d8a700494c6cd117a9e3b1bd18b95823f723b7750b41ea2b86f1c59e7c6d00c",
  "private": false,
  "record": {
    "abstract": "We consider two quantum cryptographic schemes relying on encoding the key\ninto qudits, i.e. quantum states in a d-dimensional Hilbert space. The first\ncryptosystem uses two mutually unbiased bases (thereby extending the BB84\nscheme), while the second exploits all the d+1 available such bases (extending\nthe six-state protocol for qubits). We derive the information gained by a\npotential eavesdropper applying a cloning-based individual attack, along with\nan upper bound on the error rate that ensures unconditional security against\ncoherent attacks.",
    "arxiv_id": "quant-ph/0107130",
    "authors": [
      "Nicolas J. Cerf",
      "Mohamed Bourennane",
      "Anders Karlsson",
      "Nicolas Gisin"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.88.127902",
    "journal_ref": "Phys. Rev. Lett. 88, 127902 (2002).",
    "title": "Security of quantum key distribution using d-level systems",
    "url": "https://arxiv.org/abs/quant-ph/0107130"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "4b923680-bcdd-45fd-8ba6-4b1257eab5af",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}