{
  "annotation_id": "1859094f-ccc9-4bdf-aaf1-a08b459682cf",
  "date_created": "2026-03-02T18:01:49.445000Z",
  "date_modified": "2026-03-02T18:01:49.445000Z",
  "file_hash": "e411d002a977bd7d05b8ed40da33efc1fc96d9186119cf610f0457711cd1c73b",
  "private": false,
  "record": {
    "abstract": "We study the threshold temperature for pairwise thermal entanglement in the\nspin-1/2 isotropic Heisenberg model up to 11 spins and find that the threshold\ntemperature for odd and even number of qubits approaches the thermal dynamical\nlimit from below and above, respectively. The threshold temperature in the\nthermodynamical limit is estimated. We investigate the many-particle\nentanglement in both ground states and thermal states of the system, and find\nthat the thermal state in the four-qubit model is four-particle entangled\nbefore a threshold temperature.",
    "arxiv_id": "quant-ph/0205049",
    "authors": [
      "Xiaoguang Wang"
    ],
    "categories": [
      "quant-ph",
      "cond-mat.mes-hall"
    ],
    "doi": "10.1103/PhysRevA.66.044305",
    "journal_ref": "Phys. Rev. A 66, 044305 (2002).",
    "title": "Threshold temperature for pairwise and many-particle thermal   entanglement in the isotropic Heisenberg model",
    "url": "https://arxiv.org/abs/quant-ph/0205049"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "3c4e4251-bf3d-492e-84e0-a6ed17a4cbe1",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}