{
  "annotation_id": "f7636f19-afa2-445e-a4fb-f60f5a9bdac9",
  "date_created": "2026-03-02T18:02:06.403000Z",
  "date_modified": "2026-03-02T18:02:06.403000Z",
  "file_hash": "688f4a54612a9f30e034ed237987b199afcec4d6db7ca61437fd37fa6e4e0b5f",
  "private": false,
  "record": {
    "abstract": "We calculate the entanglement between two spins in the ferromagnetic\nHeisenberg chain at low temperatures, and show that when only the ground state\nand the one particle states are populated, the entanglement profile is a\ngaussian with a characteristic length depending on the temperature and the\ncoupling between spins. The magnetic field only affects the amplitude of the\nprofile and not its characteristic length.",
    "arxiv_id": "quant-ph/0405060",
    "authors": [
      "M. Asoudeh",
      "V. Karimipour"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.70.052307",
    "journal_ref": "Physical Rev. A, 70, 052307 (2004)",
    "title": "Thermal entanglement of spins in the Heisenberg model at low   temperatures",
    "url": "https://arxiv.org/abs/quant-ph/0405060"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "0128f75b-40cd-459f-9125-4c87b6efcfe3",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}