{
  "annotation_id": "c88c9cac-ed40-41bb-9462-189bbe902fd4",
  "date_created": "2026-03-02T18:01:58.865000Z",
  "date_modified": "2026-03-02T18:01:58.865000Z",
  "file_hash": "ec8e9852d7d6111f1b0fe4ce3a989edc3fd443ab33aeb25dc3bafd17241e7486",
  "private": false,
  "record": {
    "abstract": "We report an interference experiment in which the two-photon entangled state\ninterference cannot be pictured in terms of the overlap and bunching of two\nindividual photons on a beamsplitter. We also demonstrate that two-photon\ninterference, or photon bunching effect on a beamsplitter, does not occur if\nthe two-photon Feynman amplitudes are distinguishable, even though individual\nphotons do overlap on a beamsplitter. Therefore, two-photon interference cannot\nbe viewed as interference of two individual photons, rather it should be viewed\nas two-photon or biphoton interfering with itself. The results may also be\nuseful for studying decoherence management in entangled two-qubit systems as we\nobserve near complete restoration of quantum interference after the qubit\npairs, generated by a femtosecond laser pulse, went through certain\nbirefringent elements.",
    "arxiv_id": "quant-ph/0304030",
    "authors": [
      "Yoon-Ho Kim"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1016/S0375-9601(03)01114-9",
    "journal_ref": "Physics Letters A, 315, 352 (2003)",
    "title": "Two-photon interference without bunching two photons",
    "url": "https://arxiv.org/abs/quant-ph/0304030"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "463f32b7-17ce-4df9-8727-c11f7ed24977",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}