{
  "annotation_id": "a33c8c05-da6f-4e5a-b450-7083fff336c9",
  "date_created": "2026-03-02T18:02:03.345000Z",
  "date_modified": "2026-03-02T18:02:03.345000Z",
  "file_hash": "3a019c5082fce70af34614827a04145dd92cad9795411804578fbdcf0410dc1c",
  "private": false,
  "record": {
    "abstract": "We consider a large number of two-level atoms interacting with the mode of a\ncavity in the rotating-wave approximation (Tavis-Cummings model). We apply the\nHolstein-Primakoff transformation to study the model in the limit of the number\nof two-level atoms, all in their ground state, becoming very large. The unitary\nevolution that we obtain in this approximation is applied to a macroscopic\nsuperposition state showing that, when the coherent states forming the\nsuperposition are enough distant, then the state collapses on a single coherent\nstate describing a classical radiation mode. This appear as a true dynamical\neffect that could be observed in experiments with cavities.",
    "arxiv_id": "quant-ph/0310117",
    "authors": [
      "Marco Frasca"
    ],
    "categories": [
      "quant-ph",
      "cond-mat.other",
      "physics.atom-ph"
    ],
    "doi": "10.1088/0953-4075/37/6/011",
    "journal_ref": "J. Phys. B: At. Mol. Opt. Phys. 37 (2004) 1273-1278",
    "title": "Dynamical decoherence in a cavity with a large number of two-level atoms",
    "url": "https://arxiv.org/abs/quant-ph/0310117"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "7af845d5-8e98-4b80-9687-de5dfcebf2f5",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}