{
  "annotation_id": "3a1deceb-185d-4859-9bd6-6d7bc4b30cfa",
  "date_created": "2026-03-02T18:00:46.957000Z",
  "date_modified": "2026-03-02T18:00:46.957000Z",
  "file_hash": "99375089e89cb95f9226b2364d79cef8fa9f8ca00aab74ebf1869b4667d95088",
  "private": false,
  "record": {
    "abstract": "We report optical absorption imaging of ultracold neutral plasmas.Images are\nused to measure the ion absorption spectrum, which is Doppler-broadened.\nThrough the spectral width, we monitor ion equilibration in the first 250ns\nafter plasma formation. The equilibration leaves ions on the border between the\nweakly coupled gaseous and strongly coupled liquid states. On a longer\ntimescale of microseconds, we observe radial acceleration of ions resulting\nfrom pressure exerted by the trapped electron gas.",
    "arxiv_id": "physics/0310017",
    "authors": [
      "C. E. Simien",
      "Y. C. Chen",
      "P. Gupta",
      "S. Laha",
      "Y. N. Martinez",
      "P. G. Mickelson",
      "S. B. Nagel",
      "T. C. Killian"
    ],
    "categories": [
      "physics.atom-ph",
      "physics.plasm-ph"
    ],
    "doi": "10.1103/PhysRevLett.92.143001",
    "title": "Using Absorption Imaging to Study Ion Dynamics in an Ultracold Neutral   Plasma",
    "url": "https://arxiv.org/abs/physics/0310017"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "0fee3b74-6d71-48e6-beaf-2ced8557a1c4",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}