{
  "annotation_id": "29a3af51-1500-4d5a-8f3d-32b7a6130851",
  "date_created": "2026-03-02T18:02:47.938000Z",
  "date_modified": "2026-03-02T18:02:47.938000Z",
  "file_hash": "87c9426358fd7b1de2cc26e15fe3bf8773ad689bb3c42a1ee460c4389f28265c",
  "private": false,
  "record": {
    "abstract": "Like all of quantum information theory, quantum cryptography is traditionally\nbased on two level quantum systems. In this letter, a new protocol for quantum\nkey distribution based on higher dimensional systems is presented. An\nexperimental realization using an interferometric setup is also proposed.\nAnalyzing this protocol from the practical side, one finds an increased key\ncreation rate while keeping the initial laser pulse rate constant. Analyzing it\nfor the case of intercept/resend eavesdropping strategy, an increased error\nrate is found compared to two dimensional systems, hence an advantage for the\nlegitimate users to detect an eavesdropper.",
    "arxiv_id": "quant-ph/9910095",
    "authors": [
      "H. Bechmann-Pasquinucci",
      "W. Tittel"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.61.062308",
    "title": "Quantum Cryptography using larger alphabets",
    "url": "https://arxiv.org/abs/quant-ph/9910095"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "f639fe03-2482-4851-bd09-111c28e67b20",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}