{
  "annotation_id": "050c0a65-1a5a-4bf5-9025-c18b7f7b7f0a",
  "date_created": "2026-03-02T18:01:39.264000Z",
  "date_modified": "2026-03-02T18:01:39.264000Z",
  "file_hash": "838c740980a1fa9945378e79933136143ef10e83827f92c5b438a7ee52e1c76c",
  "private": false,
  "record": {
    "abstract": "We report on a test of Bell inequalities using a non-maximally entangled\nstate, which represents an important step in the direction of eliminating the\ndetection loophole. The experiment is based on the creation of a polarisation\nentangled state via the superposition, by use of an appropriate optics, of the\nspontaneous fluorescence emitted by two non-linear crystals driven by the same\npumping laser. The alignment has profitably taken advantage from the use of an\noptical amplifier scheme, where a solid state laser is injected into the\ncrystals together with the pumping laser. In principle a very high total\nquantum efficiency can be reached using this configuration and thus the final\nversion of this experiment can lead to a resolution of the detection loophole,\nwe carefully discuss the conditions which must be satisfied for reaching this\nresult.",
    "arxiv_id": "quant-ph/0004033",
    "authors": [
      "G. Brida",
      "M. Genovese",
      "C. Novero",
      "E. Predazzi"
    ],
    "categories": [
      "quant-ph",
      "hep-ex",
      "physics.optics"
    ],
    "title": "A new conception experimental test of Bell inequalities using   non-maximally entangled states",
    "url": "https://arxiv.org/abs/quant-ph/0004033"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "6aac71bd-5610-4e4d-b933-c606dfdb657b",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}