{
  "annotation_id": "621f3318-38f1-4fb7-8939-463107e2401f",
  "date_created": "2026-03-02T18:01:52.924000Z",
  "date_modified": "2026-03-02T18:01:52.924000Z",
  "file_hash": "56b0be60c019ecf77c70cd0e818d1b66ec4d2db1188639436e0bc996906d0db4",
  "private": false,
  "record": {
    "abstract": "The creation of specified quantum states is important for most, if not all,\napplications in quantum computation and communication. The quality of the state\npreparation is therefore an essential ingredient in any assessment of a\nquantum-state gun. We show that the fidelity, under the standard definitions is\nnot sufficient to assess quantum sources, and we propose a new measure of\nsuitability that necessarily depends on the application for the source. We\nconsider the performance of single-photon guns in the context of quantum key\ndistribution (QKD) and linear optical quantum computation. Single-photon\nsources for QKD need radically different properties than sources for quantum\ncomputing. Furthermore, the suitability for single-photon guns is discussed\nexplicitly in terms of experimentally accessible criteria.",
    "arxiv_id": "quant-ph/0206198",
    "authors": [
      "George M. Hockney",
      "Pieter Kok",
      "Jonathan P. Dowling"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.67.032306",
    "journal_ref": "Phys. Rev. A, 67 (2003) 032306",
    "title": "Suitability versus fidelity for rating single-photon guns",
    "url": "https://arxiv.org/abs/quant-ph/0206198"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "dc8a7250-d78a-44c4-95d9-7884f1573fd5",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}