{
  "annotation_id": "a7a174a2-ae76-44c0-8600-fda75b1f3ed2",
  "date_created": "2026-03-02T18:00:28.704000Z",
  "date_modified": "2026-03-02T18:00:28.704000Z",
  "file_hash": "7288ea977e29eb89262e7d2799726a569f4c89adb0c58ff84bd230ae218773b5",
  "private": false,
  "record": {
    "abstract": "We analyse the ground state of a particle in a double-well potential, with a\ncylindrical symmetry, and in the presence of a magnetic field. We find that the\nazimuthal quantum number m takes the values m = 0,1,2... when we increase the\nmagnetic field. At critical values of the magnetic field, the ground state is\ntwice degenerate. The magnetisation shows an oscillatory behaviour and jumps at\ncritical values of the magnetic field. This phase transition could be seen in\nthe condensate of a dilute gas of charged bosons confined by a double-well\npotential.",
    "arxiv_id": "physics/0002030",
    "authors": [
      "H. Kunz",
      "J. Chapuis",
      "A. Jory"
    ],
    "categories": [
      "physics.atom-ph",
      "physics.gen-ph"
    ],
    "title": "Phase transition in the ground state of a particle in a double-well   potential and a magnetic field",
    "url": "https://arxiv.org/abs/physics/0002030"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "2d110309-8945-4a01-81e3-50ca2b864411",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}