{
  "annotation_id": "0f94568b-7bf3-411a-a140-d6daf6a2aee0",
  "date_created": "2026-03-02T18:02:23.825000Z",
  "date_modified": "2026-03-02T18:02:23.825000Z",
  "file_hash": "244b398ce2f35e4a4e75609b7d4eb98a63279d2654a108005beba3d06f467227",
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  "record": {
    "abstract": "We investigate the error tolerance of quantum cryptographic protocols using\n$d$-level systems. In particular, we focus on prepare-and-measure schemes that\nuse two mutually unbiased bases and a key-distillation procedure with two-way\nclassical communication. For arbitrary quantum channels, we obtain a sufficient\ncondition for secret-key distillation which, in the case of isotropic quantum\nchannels, yields an analytic expression for the maximally tolerable error rate\nof the cryptographic protocols under consideration. The difference between the\ntolerable error rate and its theoretical upper bound tends slowly to zero for\nsufficiently large dimensions of the information carriers.",
    "arxiv_id": "quant-ph/0602008",
    "authors": [
      "Georgios M. Nikolopoulos",
      "Kedar S. Ranade",
      "Gernot Alber"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.73.032325",
    "journal_ref": "Phys. Rev. A 73 (No. 3, March 2006), 032325",
    "title": "Error tolerance of two-basis quantum key-distribution protocols using   qudits and two-way classical communication",
    "url": "https://arxiv.org/abs/quant-ph/0602008"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "316adc56-9a7a-422a-bc4f-66bda952218b",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}