{
  "annotation_id": "503385ca-be49-4012-9bc8-7f4cf32881b7",
  "date_created": "2026-03-02T18:02:34.492000Z",
  "date_modified": "2026-03-02T18:02:34.492000Z",
  "file_hash": "fedd97f8567c0b4a7db67fb332dc2c8dccfed0fa76ff34de3b3316fe8af2ad90",
  "private": false,
  "record": {
    "abstract": "In this paper, we study the interaction between the two-level atom and a\nbimodal cavity field, namely, two-mode Jaynes-Cummings model when the atom and\nthe modes are initially in the atomic superposition state and two-mode squeezed\nvacuum state, respectively. For this system we investigate the atomic\ninversion, linear entropy and atomic Wehrl entropy. We show that there is a\nconnection between all these quantities. Also we prove that the atomic Wehrl\nentropy exhibits behaviors similar to those of the linear entropy and the von\nNeumann entropy. Moreover, we show that the bipartite exhibits periodical\ndisentanglement and derive the explicit forms of the states of the atom and the\nmodes at these values of the interaction times.",
    "arxiv_id": "quant-ph/0703043",
    "authors": [
      "Faisal A. A. El-Orany",
      "S. Abdel-Khalek",
      "M. Abdel-Aty",
      "M. R. B. Wahiddin"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1007/s10773-007-9549-1",
    "title": "Entanglement in the bimodal Jaynes-Cummings model with the two-mode   squeezed vacuum state",
    "url": "https://arxiv.org/abs/quant-ph/0703043"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "3eb579c3-9039-4e84-acbf-26703d66351c",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}