{
  "annotation_id": "a6ad8adf-1dbf-466a-97cf-a8e57264d826",
  "date_created": "2026-03-02T18:00:01.416000Z",
  "date_modified": "2026-03-02T18:00:01.416000Z",
  "file_hash": "3485c199a53f6d287789e356f86212005530e30cbf25841d665f445df964eb5b",
  "private": false,
  "record": {
    "abstract": "We propose a relationship between thermodynamic phase transitions and\nground-state quantum phase transitions in systems with variable Hamiltonian\nparameters. It is based on a link between zeros of the canonical partition\nfunction at complex temperatures and exceptional points of a quantum\nHamiltonian in the complex-extended parameter space. This approach is applied\nin the interacting boson model, where it is shown to properly distinguish the\nfirst- and second-order phase transitions.",
    "arxiv_id": "nucl-th/0406060",
    "authors": [
      "Pavel Cejnar",
      "Stefan Heinze",
      "Jan Dobes"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1103/PhysRevC.71.011304",
    "journal_ref": "Phys.Rev. C71 (2005) 011304",
    "title": "Thermodynamic analogy for quantum phase transitions at zero temperature",
    "url": "https://arxiv.org/abs/nucl-th/0406060"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "c64b5763-858a-4cc8-b82d-f6f3e7a294d1",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}