{
  "annotation_id": "7b91b957-fb38-4a26-8f70-60900311e8df",
  "date_created": "2026-03-02T18:02:06.395000Z",
  "date_modified": "2026-03-02T18:02:06.395000Z",
  "file_hash": "8b0f9063fd10e4445f58c9db152adc4a9fd6a010298bbc40904a6c852e2cc530",
  "private": false,
  "record": {
    "abstract": "We investigate cluster states of qubits with respect to their non-local\nproperties. We demonstrate that a Greenberger-Horne-Zeilinger (GHZ) argument\nholds for any cluster state: more precisely, it holds for any partial, thence\nmixed, state of a small number of connected qubits (five, in the case of\none-dimensional lattices). In addition, we derive a new Bell inequality that is\nmaximally violated by the 4-qubit cluster state and is not violated by the\n4-qubit GHZ state.",
    "arxiv_id": "quant-ph/0405119",
    "authors": [
      "Valerio Scarani",
      "Antonio Acin",
      "Emmanuel Schenck",
      "Markus Aspelmeyer"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.71.042325",
    "journal_ref": "Phys. Rev. A 71, 042325 (2005)",
    "title": "Nonlocality of cluster states of qubits",
    "url": "https://arxiv.org/abs/quant-ph/0405119"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "e49ba161-cbc6-4167-9ef2-dbb0198d8ceb",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}