{
  "annotation_id": "9050b818-8b48-492e-bf8d-5e95d1b8b4e1",
  "date_created": "2026-03-02T18:02:13.750000Z",
  "date_modified": "2026-03-02T18:02:13.750000Z",
  "file_hash": "e9dd27695214094553bc662ab2570b467d1edc43bd3f601937435b43cfea38a8",
  "private": false,
  "record": {
    "abstract": "We study quantum dynamical properties of a spin-1 atomic Bose-Einstein\ncondensate in a double-well potential. Adopting a mean field theory and single\nspatial mode approximation, we characterize our model system as two coupled\nspins. For certain initial states, we find full magnetization oscillations\nbetween wells not accompanied by mass (or atom numbers) exchange. We identify\ndynamic regimes of collective spin variables arising from nonlinear\nself-interactions that are different from the usual Josephson oscillations. We\nalso discuss magnetization beats and incomplete oscillations of collective spin\nvariables other than the magnetization. Our study points to an alternative\napproach to observe coherent tunnelling of a condensate through a (spatial)\npotential barrier.",
    "arxiv_id": "quant-ph/0501165",
    "authors": [
      "\u00d6. E. M\u00fcstecapl\u0131o\u011flu",
      "M. Zhang",
      "L. You"
    ],
    "categories": [
      "quant-ph",
      "cond-mat.other",
      "physics.atom-ph"
    ],
    "doi": "10.1103/PhysRevA.71.053616",
    "title": "Tunnelling of condensate magnetization in a double-well potential",
    "url": "https://arxiv.org/abs/quant-ph/0501165"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "90fb77bd-f98b-40ca-8e1f-50cf28a3f422",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}