{
  "annotation_id": "41bd7236-2cba-4bc2-86ce-a35ee6a830b9",
  "date_created": "2026-03-02T18:02:27.508000Z",
  "date_modified": "2026-03-02T18:02:27.508000Z",
  "file_hash": "ac639994b299566df10e7d9a59bc7b7487ccdd47cc2dd78f33affddfa23547f0",
  "private": false,
  "record": {
    "abstract": "In this paper, we study three specific aspects of entanglement in small spin\nclusters. We first study the effect of inhomogeneous exchange coupling strength\non the entanglement properties of the S=1/2 antiferromagnetic linear chain\ntetramer compound NaCuAsO_{4}. The entanglement gap temperature, T_{E}, is\nfound to have a non-monotonic dependence on the value of $\\alpha$, the exchange\ncoupling inhomogeneity parameter. We next determine the variation of T_{E} as a\nfunction of S for a spin dimer, a trimer and a tetrahedron. The temperature\nT_{E} is found to increase as a function of S, but the scaled entanglement gap\ntemperature t_{E} goes to zero as S becomes large. Lastly, we study a spin-1\ndimer compound to illustrate the quantum complementarity relation. We show that\nin the experimentally realizable parameter region, magnetization and\nentanglement plateaus appear simultaneously at low temperatures as a function\nof the magnetic field. Also, the sharp increase in one quantity as a function\nof the magnetic field is accompanied by a sharp decrease in the other so that\nthe quantum complementarity relation is not violated.",
    "arxiv_id": "quant-ph/0606095",
    "authors": [
      "Amit Tribedi",
      "Indrani Bose"
    ],
    "categories": [
      "quant-ph",
      "cond-mat.other"
    ],
    "doi": "10.1103/PhysRevA.74.012314",
    "journal_ref": "Phys. Rev. A 74, 012314 (2006)",
    "title": "Entangled spin clusters: some special features",
    "url": "https://arxiv.org/abs/quant-ph/0606095"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "a78ccee0-ff69-402d-b16f-ba2600857b87",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}