{
  "annotation_id": "b6dc1b3b-2130-452a-a18b-83dc8305b54d",
  "date_created": "2026-03-02T18:02:17.136000Z",
  "date_modified": "2026-03-02T18:02:17.136000Z",
  "file_hash": "5eff64381a692dde104293a2fd7613ddd6a2c3f471e3195dc8265c7870bd4600",
  "private": false,
  "record": {
    "abstract": "This communication is an enquiry into the circumstances under which entropy\nand subentropy methods can give an answer to the question of quantum\nentanglement in the composite state. Using a general quantum dynamical system\nwe obtain the analytical solution when the atom initially starts from its\nexcited state and the field in different initial states. Different features of\nthe entanglement are investigated when the field is initially assumed to be in\na coherent state, an even coherent state (Schrodinger cate state) and a\nstatistical mixture of coherent states. Our results show that the setting of\nthe initial state and the Stark shift play important role in the evolution of\nthe sub-entropies and entanglement.",
    "arxiv_id": "quant-ph/0506079",
    "authors": [
      "A. -S. F. Obada",
      "H. A. Hessian",
      "Mahmoud Abdel-Aty"
    ],
    "categories": [
      "quant-ph"
    ],
    "title": "A treatment of the quantum partial entropies in the atom-field   interaction with a class of Schrodinger cat states",
    "url": "https://arxiv.org/abs/quant-ph/0506079"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "a59df724-ac77-47a6-b5a4-28debca31c38",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}