{
  "annotation_id": "263db0be-b5f3-40de-9366-e4ad08ff0b0d",
  "date_created": "2026-03-02T18:02:13.758000Z",
  "date_modified": "2026-03-02T18:02:13.758000Z",
  "file_hash": "117591097b8d4f3a8c967d8d53d1dc384a6553a3cf743539cd7b680ab7a48d3c",
  "private": false,
  "record": {
    "abstract": "Quantum entanglement and quantum nonlocality of $N$-photon entangled states\n$|\\psi_{N m}\u003e =\\mathcal{N}_{m}[\\cos\\gamma|N-m\u003e_{1}|m\u003e_{2}\n+e^{i\\theta_{m}}\\sin\\gamma|m\u003e_{1}|N-m\u003e_{2}]$ and their superpositions are\nstudied. We indicate that the relative phase $\\theta_{m}$ affects quantum\nnonlocality but not quantum entanglement for the state $|\\psi_{N m}\u003e$. We show\nthat quantum nonlocality can be controlled and manipulated by adjusting the\nstate parameters of $|\\psi_{N m}\u003e$, superposition coefficients, and the\nazimuthal angles of the Bell operator. We also show that the violation of the\nBell inequality can reach its maximal value under certain conditions. It is\nfound that quantum superpositions based on $|\\psi_{N m}\u003e$ can increase the\namount of entanglement, and give more ways to reach the maximal violation of\nthe Bell inequality.",
    "arxiv_id": "quant-ph/0503099",
    "authors": [
      "Yan-Hua Sun",
      "Le-Man Kuang"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1088/1009-1963/15/4/005",
    "title": "Quantum entanglement and quantum nonlocality for $N$-photon entangled   states",
    "url": "https://arxiv.org/abs/quant-ph/0503099"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "f3da7397-0a19-45a4-9bc1-222305cc9560",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}