{
  "annotation_id": "06a3b5c9-a55a-4a4c-8e54-3e4df53b3331",
  "date_created": "2026-03-02T18:02:30.422000Z",
  "date_modified": "2026-03-02T18:02:30.422000Z",
  "file_hash": "a3a86f9e6cb75dfa6efaff8aa4dcb41665a642e0c4bbabee665a0b6db1650b1e",
  "private": false,
  "record": {
    "abstract": "We investigate the nonlinear dynamics of two coupled annular Bose-Einstein\ncondensates (BECs). For certain values of the coupling strength the nonrotating\nground state is unstable with respect to fluctuations in the higher angular\nmomentum modes. The two branched Bogoliubov spectrum exhibits distinct regions\nof instability enabling one to selectively occupy certain angular momentum\nmodes. For sufficiently long evolution times angular momentum Josephson\noscillations spontaneously appear, breaking the initial chiral symmetry of the\nBECs.",
    "arxiv_id": "quant-ph/0609133",
    "authors": [
      "Igor Lesanovsky",
      "Wolf von Klitzing"
    ],
    "categories": [
      "quant-ph",
      "cond-mat.quant-gas"
    ],
    "doi": "10.1103/PhysRevLett.98.050401",
    "journal_ref": "Phys. Rev. Lett. 98-5, 050401 (2007)",
    "title": "Spontaneous emergence of angular momentum Josephson oscillations in   coupled annular Bose-Einstein condensates",
    "url": "https://arxiv.org/abs/quant-ph/0609133"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "9ee4c431-56c7-4ddf-b07b-8028bc101813",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}