{
  "annotation_id": "206eb381-e24b-4225-adb5-a26a5662aba6",
  "date_created": "2026-03-02T18:01:24.825000Z",
  "date_modified": "2026-03-02T18:01:24.825000Z",
  "file_hash": "dafa5ebeffb2287f280aea39852531fe3c5ca4a8079ae73dc2a6989660494756",
  "private": false,
  "record": {
    "abstract": "We calculate the two-photon 1S-2S spectrum of an atomic hydrogen\nBose-Einstein condensate in the regime where the cold collision frequency shift\ndominates the lineshape. WKB and static phase approximations are made to find\nthe intensities for transitions from the condensate to motional eigenstates for\n2S atoms. The excited state wave functions are found using a mean field\npotential which includes the effects of collisions with condensate atoms.\nResults agree well with experimental data. This formalism can be used to find\ncondensate spectra for a wide range of excitation schemes.",
    "arxiv_id": "physics/9908002",
    "authors": [
      "Thomas C. Killian"
    ],
    "categories": [
      "physics.atom-ph"
    ],
    "doi": "10.1103/PhysRevA.61.033611",
    "journal_ref": "Phys. Rev. A 61, 33611 (2000)",
    "title": "1S-2S Spectrum of a Hydrogen Bose-Einstein Condensate",
    "url": "https://arxiv.org/abs/physics/9908002"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "56b74187-1c0e-42b0-9d67-df9fd0ca2a36",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}