{
  "annotation_id": "8d5964c4-0be0-4c1b-99b4-deeda21216dc",
  "date_created": "2026-03-02T18:01:59.127000Z",
  "date_modified": "2026-03-02T18:01:59.127000Z",
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  "record": {
    "abstract": "We employ a high quantum efficiency photon number counter to determine the\nphoton number distribution of the output field from a parametric downconverter.\nThe raw photocount data directly demonstrates that the source is nonclassical\nby forty standard deviations, and correcting for the quantum efficiency yields\na direct observation of oscillations in the photon number distribution.",
    "arxiv_id": "quant-ph/0307162",
    "authors": [
      "Edo Waks",
      "Eleni Diamanti",
      "Barry C. Sanders",
      "Stephen D. Bartlett",
      "Yoshihisa Yamamoto"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.92.113602",
    "journal_ref": "Phys. Rev. Lett. 92, 113602 (2004)",
    "title": "Direct observation of non-classical photon statistics in parametric   downconversion",
    "url": "https://arxiv.org/abs/quant-ph/0307162"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "b419129c-5636-49d5-8fde-0a2de07b4dd4",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}