{
  "annotation_id": "01dfccab-99b3-4043-9939-b9a5c0f5e087",
  "date_created": "2026-03-02T18:02:37.492000Z",
  "date_modified": "2026-03-02T18:02:37.492000Z",
  "file_hash": "42f02a33bf340faf07241696fec7c0eba54524fb1ec6b8e69df832d7dc3f3936",
  "private": false,
  "record": {
    "abstract": "A certain class of parametric down-conversion Bell type experiments has the\nfollowing features. In the idealized perfect situation it is in only 50% of\ncases that each observer receives a photon; in the other 50% of cases one\nobserver receives both photons of a pair while the other observer receives\nnone. The standard approach is to discard the events of the second type. Only\nthe remaining ones are used as the data input to some Bell inequalities. This\nraises justified doubts whether such experiments could be ever genuine tests of\nlocal realism. We propose to take into account these \"unfavorable\" cases and to\nanalyze the entire pattern of polarization and localization correlations. This\ndeparture from the standard reasoning enables one to show that indeed the\nexperiments are true test of local realism.",
    "arxiv_id": "quant-ph/9612030",
    "authors": [
      "Sandu Popescu",
      "Lucien Hardy",
      "Marek Zukowski"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.56.R4353",
    "title": "Revisiting Bell\u0027s theorem for a class of down-conversion experiments",
    "url": "https://arxiv.org/abs/quant-ph/9612030"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "cf9349b1-0ed4-4bcc-94b4-62cac790effc",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}