{
  "annotation_id": "1372740b-3720-4f6a-a9da-11fbf5db507d",
  "date_created": "2026-03-02T18:01:56.557000Z",
  "date_modified": "2026-03-02T18:01:56.557000Z",
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  "record": {
    "abstract": "Sufficient conditions for (the non-violation of) the Bell-CHSH inequalities\nin a mixed state of a two-qubit system are: 1) The linear entropy of the state\nis not smaller than 0.5, 2) The sum of the conditional linear entropies is\nnon-negative, 3) The von Neumann entropy is not smaller than 0.833, 4) The sum\nof the conditional von Neumann entropies is not smaller than 0.280.",
    "arxiv_id": "quant-ph/0301171",
    "authors": [
      "Emilio Santos"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.69.022305",
    "journal_ref": "Phys. Rev. A69, 022305 (2004)",
    "title": "Entropy inequalities and Bell inequalities for two-qubit systems",
    "url": "https://arxiv.org/abs/quant-ph/0301171"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "87a8e61e-4874-44de-9ec5-df8c3ad901ce",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}