{
  "annotation_id": "e2e653f0-b7e8-4204-9272-ae9492bf8095",
  "date_created": "2026-03-02T18:02:10.128000Z",
  "date_modified": "2026-03-02T18:02:10.128000Z",
  "file_hash": "32713ad4f94098f15e67a9ac9f18ade2f9d3954d4985a5648da5f5ec697541e2",
  "private": false,
  "record": {
    "abstract": "We investigate the dynamics of a two-level atom in a cavity filled with a\nnonlinear medium. We show that the atom-field detuning $\\delta$ and the\nnonlinear parameter $\\chi^{(3)}$ may be combined to yield a periodic dynamics\nand allowing the generation of almost exact superpositions of coherent states\n({\\sl Schr\\\"odinger} cats). By analysing the atomic inversion and the field\npurity, we verify that any initial atom-field state is recovered at each\nrevival time, and that a coherent field interacting with an excited atom\nevolves to a superposition of coherent states at each collapse time. We show\nthat a mixed field state (statistical mixture of two coherent states) evolves\ntowards a pure field state ({\\sl Schr\\\"odinger} cat) as well. We discuss the\nvalidity of those results by using the field fidelity and the {\\sl Wigner}\nfunction.",
    "arxiv_id": "quant-ph/0406152",
    "authors": [
      "P. P. Munhoz",
      "A. Vidiella-Barranco"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1080/09500340500058116",
    "journal_ref": "J. Mod. Opt. 52(11), 1557 (2005)",
    "title": "Non-conditioned generation of Schroedinger cat states in a cavity",
    "url": "https://arxiv.org/abs/quant-ph/0406152"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "6af6cead-30a5-449b-921b-819e7cdc5cef",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}