{
  "annotation_id": "03501362-73aa-4acb-bfb6-1a0b39627731",
  "date_created": "2026-03-02T18:01:38.735000Z",
  "date_modified": "2026-03-02T18:01:38.735000Z",
  "file_hash": "be5ea7e064f85d3794972fcfdf0c1e51048d3ad177e0b423dee66d4f68cd7e13",
  "private": false,
  "record": {
    "abstract": "It is shown that the models recently proposed by Meyer, Kent and Clifton\n(MKC) exhibit a novel kind of contextuality, which we term existential\ncontextuality. In this phenomenon it is not simply the pre-existing value but\nthe actual existence of an observable which is context dependent. This result\nconfirms the point made elsewhere, that the MKC models do not, as the authors\nclaim, ``nullify\u0027\u0027 the Kochen-Specker theorem. It may also be of some\nindependent interest.",
    "arxiv_id": "quant-ph/0005056",
    "authors": [
      "D. M. Appleby"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.65.022105",
    "journal_ref": "Phys.Rev. A65 (2002) 022105",
    "title": "Existential Contextuality and the Models of Meyer, Kent and Clifton",
    "url": "https://arxiv.org/abs/quant-ph/0005056"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "150ed56a-2a27-46a0-9b08-56ac9a096c3b",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}