{
  "annotation_id": "91c3e06c-6734-4247-8bc0-a9127dfc4fdf",
  "date_created": "2026-03-02T18:01:25.350000Z",
  "date_modified": "2026-03-02T18:01:25.350000Z",
  "file_hash": "dd91fa4429957f1cfe5802b47ab5ac152df405a7a3e21a148b6c845625c58892",
  "private": false,
  "record": {
    "abstract": "This thesis describes the observation and study of Bose-Einstein condensation\nof a trapped, dilute gas of atomic hydrogen. The condensate and normal gas are\nstudied by two-photon spectroscopy of the 1S-2S transition. We condense over\n10^9 atoms per second for several seconds, and the peak condensate density is\naround 5x10^15 cm^-3. Topics covered in the thesis include a theoretical\nanalysis of Bose-condensed hydrogen, a description of the cryogenic trapping\ncell and the evaporative cooling techniques used to bring the gas to the\ncondensation point, and an analysis of the condensate.",
    "arxiv_id": "physics/9908044",
    "authors": [
      "Dale G. Fried"
    ],
    "categories": [
      "physics.atom-ph"
    ],
    "title": "Bose-Einstein Condensation of Atomic Hydrogen",
    "url": "https://arxiv.org/abs/physics/9908044"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "4e53ca50-a651-445d-9a4f-fcef3f4cff81",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}