{
  "annotation_id": "bf79a057-481a-44c7-b090-8a951e97426f",
  "date_created": "2026-03-02T18:02:20.141000Z",
  "date_modified": "2026-03-02T18:02:20.141000Z",
  "file_hash": "ca232228d6bf04b92f968d8f67aa5cb8b04dfae446b10d24bc0d572361fca174",
  "private": false,
  "record": {
    "abstract": "A design is given for an optimized entangling probe attacking the BB84\n(Bennett-Brassard 1984) protocol of quantum key distribution and yielding\nmaximum information to the probe for a full range of induced error rates. Probe\nphoton polarization states become optimally entangled with the signal states on\ntheir way between the legitimate transmitter and receiver. Although standard\nvon-Neumann projective measurements of the probe yield maximum information on\nthe pre-privacy amplified key, if instead the probe measurements are performed\nwith a certain positive operator valued measure, then the measurement results\nare conclusive, at least some of the time, for a full range of inconclusive\nrates.",
    "arxiv_id": "quant-ph/0509088",
    "authors": [
      "Howard E. Brandt"
    ],
    "categories": [
      "quant-ph"
    ],
    "title": "Conclusive Entangling Probe",
    "url": "https://arxiv.org/abs/quant-ph/0509088"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "79b1dc6b-e6ca-43af-b93c-056ba9640a38",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}