{
  "annotation_id": "4409359e-be67-480c-8149-4d0eff049c75",
  "date_created": "2026-03-02T18:02:34.423000Z",
  "date_modified": "2026-03-02T18:02:34.423000Z",
  "file_hash": "85076dd7c089fad0e53843c0633135a9681ba7986e152716dd09ff60adc09332",
  "private": false,
  "record": {
    "abstract": "In Bell experiments, one problem is to achieve high enough photodetection to\nensure that there is no possibility of describing the results via a local\nhidden-variable model. Using the Clauser-Horne inequality and a two-photon\nnon-maximally entangled state, a photodetection efficiency higher than 0.67 is\nnecessary. Here we discuss atom-photon Bell experiments. We show that, assuming\nperfect detection efficiency of the atom, it is possible to perform a\nloophole-free atom-photon Bell experiment whenever the photodetection\nefficiency exceeds 0.50.",
    "arxiv_id": "quant-ph/0701191",
    "authors": [
      "Adan Cabello",
      "Jan-\u00c5ke Larsson"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.98.220402",
    "journal_ref": "Phys. Rev. Lett. 98 (2007) 220402",
    "title": "Minimum detection efficiency for a loophole-free atom-photon Bell   experiment",
    "url": "https://arxiv.org/abs/quant-ph/0701191"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "2077c329-fc9e-4e12-868e-1a55a24ad421",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}