{
  "annotation_id": "03361576-eff7-4a5e-a99a-2b2902e97b2f",
  "date_created": "2026-03-02T18:02:10.323000Z",
  "date_modified": "2026-03-02T18:02:10.323000Z",
  "file_hash": "e795230631bec9c2bc98738f9e29fb85a9d456e42374ca18a7b04658e0f68a4b",
  "private": false,
  "record": {
    "abstract": "We present entanglement witnesses for detecting genuine multi-qubit\nentanglement. Our constructions are robust against noise and require only two\nlocal measurement settings, independent of the number of qubits. Thus they\nallow to verify entanglement of many qubits in experiments while requiring only\na small effort. In contrast, usual methods need an effort which increases\nexponentially with the number of qubits. The witnesses detect states close to\nGHZ states and cluster states.",
    "arxiv_id": "quant-ph/0409132",
    "authors": [
      "Geza Toth",
      "Otfried Guehne"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1063/1.1834423",
    "journal_ref": "AIP Conf. Proc. 734, 234 (2004)",
    "title": "Two measurement settings can suffice to verify multipartite entanglement",
    "url": "https://arxiv.org/abs/quant-ph/0409132"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "0f8cc7e1-1847-4756-9f3a-f92c715bcd6d",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}