{
  "annotation_id": "478ae0c4-9414-4278-9517-a8fe62546283",
  "date_created": "2026-03-02T18:02:10.323000Z",
  "date_modified": "2026-03-02T18:02:10.323000Z",
  "file_hash": "99c82edd838629b8e9ef89e96628d8c74a2c44f9100e28c5085e8d2f5d3a71e9",
  "private": false,
  "record": {
    "abstract": "We present a generalized tomographic quantum key distribution protocol in\nwhich the two parties share a Bell diagonal mixed state of two qubits. We show\nthat if an eavesdropper performs a coherent measurement on many quantum ancilla\nstates simultaneously, classical methods of secure key distillation are less\neffective than quantum entanglement distillation protocols. We also show that\ncertain Bell diagonal states are resistant to any attempt of incoherent\neavesdropping.",
    "arxiv_id": "quant-ph/0408088",
    "authors": [
      "Dagomir Kaszlikowski",
      "Jenn Yang Lim",
      "D. K. L. Oi",
      "Frederick H. Willeboordse",
      "Ajay Gopinathan",
      "L. C. Kwek"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.71.012309",
    "title": "Quantum tomographic cryptography with Bell diagonal states:   non-equivalence of classical and quantum distillation protocols",
    "url": "https://arxiv.org/abs/quant-ph/0408088"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "602abda9-c934-45e0-ad2a-755c0aeed264",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}