{
  "annotation_id": "75cfc79a-68ae-4f74-bb2d-dddf05b5de63",
  "date_created": "2026-03-02T18:01:45.340000Z",
  "date_modified": "2026-03-02T18:01:45.340000Z",
  "file_hash": "40b66a1112a7746228621e6f920fce8a0befe3d4d98a5f82a2a3eed54077a202",
  "private": false,
  "record": {
    "abstract": "We compare and contrast the error probability and fidelity as measures of the\nquality of the receiver\u0027s measurement strategy for a quantum communications\nsystem. The error probability is a measure of the ability to retrieve {\\it\nclassical} information and the fidelity measures the retrieval of {\\it quantum}\ninformation. We present the optimal measurement strategies for maximising the\nfidelity given a source that encodes information on the symmetric qubit-states.",
    "arxiv_id": "quant-ph/0107024",
    "authors": [
      "Stephen M. Barnett",
      "Claire R. Gilson",
      "Masahide Sasaki"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1088/0305-4470/34/35/303",
    "journal_ref": "J. Phys. A: Math. Gen. 34(35), 6755 (2001).",
    "title": "Fidelity and the communication of quantum information",
    "url": "https://arxiv.org/abs/quant-ph/0107024"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "6a7e470d-6650-4aec-bb15-7b297f28fa25",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}