{
  "annotation_id": "4cdc011b-0608-4c5a-8ed1-1568018e5b4d",
  "date_created": "2026-03-02T18:02:10.106000Z",
  "date_modified": "2026-03-02T18:02:10.106000Z",
  "file_hash": "0e52f0785ffb3a8b2d65e22da98930d1095a502e0b9c2d957f4184a828ce26ec",
  "private": false,
  "record": {
    "abstract": "The interference of two single photons impinging on a beam splitter is\nmeasured in a time-resolved manner. Using long photons of different frequencies\nemitted from an atom-cavity system, a quantum beat with a visibility close to\n100% is observed in the correlation between the photodetections at the output\nports of the beam splitter. The time dependence of the beat amplitude reflects\nthe coherence properties of the photons. Most remarkably, simultaneous\nphotodetections are never observed, so that a temporal filter allows one to\nobtain perfect two-photon coalescence even for non-perfect photons.",
    "arxiv_id": "quant-ph/0406096",
    "authors": [
      "Thomas Legero",
      "Tatjana Wilk",
      "Markus Hennrich",
      "Gerhard Rempe",
      "Axel Kuhn"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.93.070503",
    "journal_ref": "Phys. Rev. Lett. 93, 070503 (2004)",
    "title": "Quantum Beat of Two Single Photons",
    "url": "https://arxiv.org/abs/quant-ph/0406096"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "a7ad013d-1976-4ef9-93b3-dfc92a732d56",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}