{
  "annotation_id": "2ddd0e57-66a4-4cdb-9637-828a7b32b37c",
  "date_created": "2026-03-02T18:02:06.497000Z",
  "date_modified": "2026-03-02T18:02:06.497000Z",
  "file_hash": "c4a8300b9f64ab818ef60b30c0f10d68abc82930cdc44e5568bb55ac37dd0eea",
  "private": false,
  "record": {
    "abstract": "The features of the concurrences of the nearest-neighbor and the\nnext-nearest-neighbor sites for one-dimensional Heisenberg model with the\nnext-nearest-neighbor interaction are studied both at the ground state and\nfinite temperatures respectively. Both concurrences are found to exhibit\ndifferent behaviors at the ground state, which is clarified from the point of\nview of the correlation function. The threshold temperature with respective to\ndifferent number of sites and the thermal concurrences of the system up to 12\nsites are studied numerically.",
    "arxiv_id": "quant-ph/0403026",
    "authors": [
      "Shi-Jian Gu",
      "Haibin Li",
      "You-Quan Li",
      "Hai-Qing Lin"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.70.052302",
    "journal_ref": "Phys. Rev. A 70, 052302 (2004)",
    "title": "The entanglement of Heisenberg chain with next-nearest-neighbor   interaction",
    "url": "https://arxiv.org/abs/quant-ph/0403026"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "fce971df-acf7-4aa5-acac-b12e917ddd43",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}