{
  "annotation_id": "fb1f4acb-4776-4c39-b1b2-ecacc21e05fd",
  "date_created": "2026-03-02T18:02:16.537000Z",
  "date_modified": "2026-03-02T18:02:16.537000Z",
  "file_hash": "266f97eaa932343e3832afc781eb50cab59d886722fa3f308523024fcc0c6f3c",
  "private": false,
  "record": {
    "abstract": "We present the qualitative differences in the phase transitions of the\nmono-mode Dicke model in its integrable and chaotic versions. We show that a\nfirst order phase transition occurs in the integrable case whereas a second\norder in the chaotic one. This difference is also reflected in the classical\nlimit: for the integrable case the stable fixed point in phase space suffers a\nbifurcation of Hopf type whereas for the second one a pitchfork type\nbifurcation has been reported.",
    "arxiv_id": "quant-ph/0507026",
    "authors": [
      "M. C. Nemes",
      "K. Furuya",
      "G. Q. Pellegrino",
      "A. C. Oliveira",
      "Mauricio Reis",
      "L. Sanz"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1016/j.physleta.2006.01.028",
    "journal_ref": "Physics Letters A, 354, 60 (2006)",
    "title": "Quantum Entanglement and fixed point Hopf bifurcation",
    "url": "https://arxiv.org/abs/quant-ph/0507026"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "e8d8dfb7-11af-493c-bf64-0a57b2d2df3e",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}