{
  "annotation_id": "b4e6a19c-70ec-416e-9c46-5c9d9f2642ce",
  "date_created": "2026-03-02T18:00:53.353000Z",
  "date_modified": "2026-03-02T18:00:53.353000Z",
  "file_hash": "b62ef59a218a3d861b4fc15d2e9485bb20b419c7c77e6d0617322a209f781aa5",
  "private": false,
  "record": {
    "abstract": "Collisions between tightly confined atoms can lead to ionization and hence to\nloss of atoms from the trap. We develop second-order perturbation theory for a\ntensorial perturbation of a spherically symmetric system and the theory is then\napplied to processes mediated by the spin-dipole interaction. Redistribution\nand loss mechanisms are studied for the case of spin-polarized metastable\nhelium atoms and results obtained for the five lowest s states in the trap and\ntrapping frequencies ranging from 1 kHz to 10 MHz.",
    "arxiv_id": "physics/0408125",
    "authors": [
      "T J Beams",
      "G Peach",
      "I B Whittingham"
    ],
    "categories": [
      "physics.atom-ph"
    ],
    "doi": "10.1088/0953-4075/37/22/014",
    "title": "Ultracold atomic collisions in tight harmonic traps: Perturbation   theory, ionization losses and application to metastable helium atoms",
    "url": "https://arxiv.org/abs/physics/0408125"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "9b4e475a-d828-4af5-a06a-5ebc4719854c",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}