{
  "annotation_id": "f892c0ab-09c9-4a6b-bddc-4c3e51390b09",
  "date_created": "2026-03-02T18:02:33.455000Z",
  "date_modified": "2026-03-02T18:02:33.455000Z",
  "file_hash": "da38f36b2b4cfb764dd54e2068e1528564be4ce3f770b08a87f02f4fe36be083",
  "private": false,
  "record": {
    "abstract": "We study a one-dimensional Ising model with a magnetic field and show that\ntilting the field induces a transition to quantum chaos. We explore the\nstationary states of this Hamiltonian to show the intimate connection between\nentanglement and avoided crossings. In general entanglement gets exchanged\nbetween the states undergoing an avoided crossing with an overall enhancement\nof multipartite entanglement at the closest point of approach, simultaneously\naccompanied by diminishing two-body entanglement as measured by concurrence. We\nfind that both for stationary as well as nonstationary states, nonintegrability\nleads to a destruction of two-body correlations and distributes entanglement\nmore globally.",
    "arxiv_id": "quant-ph/0611248",
    "authors": [
      "J. Karthik",
      "Auditya Sharma",
      "Arul Lakshminarayan"
    ],
    "categories": [
      "quant-ph",
      "cond-mat.other",
      "nlin.CD"
    ],
    "doi": "10.1103/PhysRevA.75.022304",
    "journal_ref": "Phys. Rev. A 75, 022304 (2007)",
    "title": "Entanglement, avoided crossings and quantum chaos in an Ising model with   a tilted magnetic field",
    "url": "https://arxiv.org/abs/quant-ph/0611248"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "f4a4302f-f2d5-4fee-95c1-b18a72e7cce2",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}