{
  "annotation_id": "71bb1249-45b7-4f26-8d52-b01324b84720",
  "date_created": "2026-03-02T18:02:34.381000Z",
  "date_modified": "2026-03-02T18:02:34.381000Z",
  "file_hash": "fdc8a9df0ca7dc5f8a052d683f0c812735d3b6754831c40a2a2cfc102b4649e4",
  "private": false,
  "record": {
    "abstract": "In a two-mode approximation, Bose-Einstein condensates (BEC) in a double-well\npotential can be described by a many particle Hamiltonian of Bose-Hubbard type.\nWe focus on such a BEC whose interatomic interaction strength is modulated\nperiodically by $\\delta$-kicks which represents a realization of a kicked top.\nIn the (classical) mean-field approximation it provides a rich mixed phase\nspace dynamics with regular and chaotic regions. By increasing the\nkick-strength a bifurcation leads to the appearance of self-trapping states\nlocalized on regular islands. This self-trapping is also found for the many\nparticle system, however in general suppressed by coherent many particle\ntunneling oscillations. The tunneling time can be calculated from the\nquasi-energy splitting of the corresponding Floquet states. By varying the\nkick-strength these quasi-energy levels undergo both avoided and even actual\ncrossings. Therefore stimulation or complete destruction of tunneling can be\nobserved for this many particle system.",
    "arxiv_id": "quant-ph/0703148",
    "authors": [
      "M P Strzys",
      "E M Graefe",
      "H J Korsch"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1088/1367-2630/10/1/013024",
    "journal_ref": "New J. Phys. 10, 013024 (2008)",
    "title": "Kicked Bose-Hubbard systems and kicked tops -- destruction and   stimulation of tunneling",
    "url": "https://arxiv.org/abs/quant-ph/0703148"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "f576be8c-a2a8-4304-a430-e84349886937",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}