{
  "annotation_id": "14da8aa6-0522-4a97-81b3-239bdb2c3381",
  "date_created": "2026-03-02T18:02:19.752000Z",
  "date_modified": "2026-03-02T18:02:19.752000Z",
  "file_hash": "f8bd091e1f233aedbf03273a62283279bd32f2e998b40ba2131300aefccd1b60",
  "private": false,
  "record": {
    "abstract": "We consider an entangled two-particle state that is produced from two\nindependent down-conversion sources by the process of \"entanglement-swapping\",\nso that the particles have never met. We prove a Greenberger-Horne-Zeilinger\n(GHZ) type theorem, showing that the quantum mechanical perfect correlations\nfor such a state are inconsistent with any deterministic, local, realistic\ntheory. This theorem holds for individual events with no inequalities, for\ndetectors of 100% efficiency.",
    "arxiv_id": "quant-ph/0510201",
    "authors": [
      "Daniel M. Greenberger",
      "Michael Horne",
      "Anton Zeilinger"
    ],
    "categories": [
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "title": "A Bell Theorem Without Inequalities for Two Particles, Using Efficient   Detectors",
    "url": "https://arxiv.org/abs/quant-ph/0510201"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "78628fb4-07bc-4bf2-845d-75aab99416c6",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}