{
  "annotation_id": "16b73230-022f-4549-b6d1-dd5e16a70c98",
  "date_created": "2026-03-02T18:02:03.601000Z",
  "date_modified": "2026-03-02T18:02:03.601000Z",
  "file_hash": "30eb9c783831cc33013b50ff7b163a1f2d11dc0ef572d4f0ac6b5e72a94505f6",
  "private": false,
  "record": {
    "abstract": "We consider a class of generalised single mode Dicke Hamiltonians with\narbitrary boson coupling in the pseudo-spin $x$-$z$ plane. We find exact\nsolutions in the thermodynamic, large-spin limit as a function of the coupling\nangle, which allows us to continuously move between the simple dephasing and\nthe original Dicke Hamiltonians. Only in the latter case (orthogonal static and\nfluctuating couplings), does the parity-symmetry induced quantum phase\ntransition occur.",
    "arxiv_id": "quant-ph/0401029",
    "authors": [
      "Clive Emary",
      "Tobias Brandes"
    ],
    "categories": [
      "quant-ph",
      "cond-mat.mes-hall"
    ],
    "doi": "10.1103/PhysRevA.69.053804",
    "journal_ref": "Phys. Rev. A 69, 053804 (2004)",
    "title": "Phase Transitions in Generalised Spin-Boson (Dicke) Models",
    "url": "https://arxiv.org/abs/quant-ph/0401029"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "942a67d8-9022-4570-ab7b-5cbbf6a9af9c",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}