{
  "annotation_id": "c22ff179-088d-4ff7-9293-4d053480e920",
  "date_created": "2026-03-02T18:02:20.749000Z",
  "date_modified": "2026-03-02T18:02:20.749000Z",
  "file_hash": "115a0820281970693667e66a26299e30963b813b789c2f5ca70a122483ea9425",
  "private": false,
  "record": {
    "abstract": "The method of perturbative expansion of master equation is employed to study\nthe dissipative properties of system and of atom in the two-photon\nJaynes-Cummings model (JCM) with degenerate atomic levels. The numerical\nresults show that the degeneracy of atomic levels prolongs the period of\nentanglement between the atom and the field. The asymptotic value of atomic\nlinear entropy is apparently increased by the degeneration. The amplitude of\nlocal entanglement and disentanglement is suppressed. The better the initial\ncoherence property of the degenerate atom, the larger the coherence loss.",
    "arxiv_id": "quant-ph/0509145",
    "authors": [
      "Y. Q. Guo",
      "L. Zhou",
      "H. S. Song"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1007/s10773-005-4772-0",
    "title": "The dissipation of the system and the atom in two-photon Jaynes-Cummings   model with degenerate atomic levels",
    "url": "https://arxiv.org/abs/quant-ph/0509145"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "2962a8ad-c006-4b7f-98d5-11fc85f50d6f",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}