{
  "annotation_id": "2789f105-6f6e-4b2a-ab38-b1cea982fe71",
  "date_created": "2026-03-02T18:02:06.329000Z",
  "date_modified": "2026-03-02T18:02:06.329000Z",
  "file_hash": "fe5428451517a0af610d678979eeeae51baeaecaefcb7f049daf7555900646b2",
  "private": false,
  "record": {
    "abstract": "We present a mathematical procedure which leads us to obtain analytical\nsolutions for the atomic inversion and Wigner function in the framework of the\nJaynes-Cummings model with an external quantum field, for any kinds of cavity\nand driving fields. Such solutions are expressed in the integral form, with\ntheir integrands having a commom term that describes the product of the\nGlauber-Sudarshan quasiprobability distribution functions for each field, and a\nkernel responsible for the entanglement. Considering two specific initial\nstates of the tripartite system, the formalism is then applied to calculate the\natomic inversion and Wigner function where, in particular, we show how the\ndetuning and amplitude of the driving field modify the entanglement. In\naddition, we also obtain the correct",
    "arxiv_id": "quant-ph/0404008",
    "authors": [
      "Marcelo A. Marchiolli",
      "Ricardo J. Missori",
      "Jose A. Roversi"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1088/0305-4470/36/49/010",
    "journal_ref": "J.Phys.A36:12275,2003",
    "title": "Qualitative aspects of entanglement in the Jaynes-Cummings model with an   external quantum field",
    "url": "https://arxiv.org/abs/quant-ph/0404008"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "c1e32ea0-d260-45ba-bca2-e6bdbb1fad51",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}