{
  "annotation_id": "b2f84e85-be62-46dd-a116-106c66bedf07",
  "date_created": "2026-03-02T18:01:38.619000Z",
  "date_modified": "2026-03-02T18:01:38.619000Z",
  "file_hash": "98ab00c59ffed155115ab4c4dd0e9e00a05e986e366aafeed0d3e43bbfcbac85",
  "private": false,
  "record": {
    "abstract": "We give a security proof of quantum cryptography based entirely on\nentanglement purification. Our proof applies to all possible attacks\n(individual and coherent). It implies the security of cryptographic keys\ndistributed with the help of entanglement-based quantum repeaters. We prove the\nsecurity of the obtained quantum channel which may not only be used for quantum\nkey distribution, but also for secure, albeit noisy, transmission of quantum\ninformation.",
    "arxiv_id": "quant-ph/0008051",
    "authors": [
      "Hans Aschauer",
      "Hans J. Briegel"
    ],
    "categories": [
      "quant-ph"
    ],
    "title": "Private entanglement over arbitrary distances, even using noisy   apparatus",
    "url": "https://arxiv.org/abs/quant-ph/0008051"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "def157c4-a377-4b53-b383-95b74a0bcf98",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}