{
  "annotation_id": "feaada1a-1fa9-4721-b86e-a2677a4288f9",
  "date_created": "2026-03-02T18:02:27.677000Z",
  "date_modified": "2026-03-02T18:02:27.677000Z",
  "file_hash": "040ced2521ac24fc18694d1f138533e71a58529cca24cf829b24e05bc5ebbdd4",
  "private": false,
  "record": {
    "abstract": "The entanglement in a general mixed spin chain with arbitrary spin $S$ and\n1/2 is investigated in the thermodynamical limit. The entanglement is witnessed\nby the magnetic susceptibility which decides a characteristic temperature for\nan entangled thermal state. The characteristic temperature is nearly\nproportional to the interaction $J$ and the mixed spin $S$. The bound of\nnegativity is obtained on the basis of the magnetic susceptibility. It is found\nthat the macroscopic magnetic properties are affected by the quantum\nentanglement in the real solids. Meanwhile, the entanglement can be\nquantitatively evaluated by the thermodynamical observable.",
    "arxiv_id": "quant-ph/0605063",
    "authors": [
      "Xiang Hao",
      "Shiqun Zhu"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1016/j.physleta.2007.01.053",
    "title": "Entanglement in a Quantum Mixed-Spin Chain",
    "url": "https://arxiv.org/abs/quant-ph/0605063"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "56882c72-2252-48d8-8f31-489a8649f678",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}