{
  "annotation_id": "00eb5043-4733-41c1-9bc7-8105ab321751",
  "date_created": "2026-03-02T18:00:43.210000Z",
  "date_modified": "2026-03-02T18:00:43.210000Z",
  "file_hash": "2e4c1ccd385a21acdfdcb8b95c212fd3103cd5fcb4f12e1abe15f3dc4d9fb2e2",
  "private": false,
  "record": {
    "abstract": "We have studied the spatial and temporal dynamics of a cold atom cloud in the\nconservative force field of a ferromagnetic guide, after laser cooling has been\nswitched off suddenly. We observe outgoing \u0027waves\u0027 that correspond to caustics\nof individual trajectories of trapped atoms. This provides detailed information\non the magnetic field, the energy distribution and the spin states.",
    "arxiv_id": "physics/0306040",
    "authors": [
      "Wilbert Rooijakkers",
      "Saijun Wu",
      "Pierre Striehl",
      "Mukund Vengalattore",
      "Mara Prentiss"
    ],
    "categories": [
      "physics.atom-ph"
    ],
    "doi": "10.1103/PhysRevA.68.063412",
    "journal_ref": "Physical Review A68, 063412 (2003)",
    "title": "Observation of Caustics in the Trajectories of Cold Atoms in a Linear   Magnetic Potential",
    "url": "https://arxiv.org/abs/physics/0306040"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "2fba91bd-167c-49ac-9dfb-7ff88825a317",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}