{
  "annotation_id": "e1352ecd-83d3-4ed6-964e-e82a94f94c3f",
  "date_created": "2026-03-02T18:02:34.432000Z",
  "date_modified": "2026-03-02T18:02:34.432000Z",
  "file_hash": "7185ee9f106b301f5ec33e22d0a6a5fb3c10a2271e296ee72dc53b1d6907c7fe",
  "private": false,
  "record": {
    "abstract": "In this paper, by using the notion of negativity, we study the degree of\nentanglement of a two-level atom interacting with a quantized radiation field,\ndescribed by the Jaynes-Cummings model (JCM). We suppose that initially the\nfield is in a pure state and the atom is in a general mixed state. In this case\nthe negativity fully captures the entanglement of the JCM. We investigate the\ncase for that the initial state of the field is a coherent state. The\ninfluences of the detuning on the degree of entanglement is also examined.",
    "arxiv_id": "quant-ph/0702101",
    "authors": [
      "S. J. Akhtarshenas",
      "M. Farsi"
    ],
    "categories": [
      "quant-ph"
    ],
    "journal_ref": "Physica Scripta, 75 (2007) 608-614",
    "title": "Negativity as Entanglement Degree of the Jaynes-Cummings Model",
    "url": "https://arxiv.org/abs/quant-ph/0702101"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "c64d9b49-c7a8-4505-94fa-f1a1aba8eadf",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}