{
  "annotation_id": "943afe92-2ef1-4b49-9de7-6911d7070e3b",
  "date_created": "2026-03-02T18:00:29.324000Z",
  "date_modified": "2026-03-02T18:00:29.324000Z",
  "file_hash": "4975d0c11b20e2181078daed4dbe5d1bde5bd09b94f600b25358a15128008bb1",
  "private": false,
  "record": {
    "abstract": "We have trapped cesium atoms over many minutes in the focus of a CO$_2$-laser\nbeam employing an extremely simple laser system. Collisional properties of the\nunpolarized atoms in their electronic ground state are investigated. Inelastic\nbinary collisions changing the hyperfine state lead to trap loss which is\nquantitatively analyzed. Elastic collisions result in evaporative cooling of\nthe trapped gas from 25 $\\mu$K to 10 $\\mu$K over a time scale of about 150 s.",
    "arxiv_id": "physics/0003075",
    "authors": [
      "H. Engler",
      "T. Weber",
      "M. Mudrich",
      "R. Grimm",
      "M. Weidemueller"
    ],
    "categories": [
      "physics.atom-ph"
    ],
    "doi": "10.1103/PhysRevA.62.031402",
    "title": "Very long storage times and evaporative cooling of cesium atoms in a   quasi-electrostatic dipole trap",
    "url": "https://arxiv.org/abs/physics/0003075"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "ecd098a1-31bf-46a6-baa3-259b11c51984",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}