{
  "annotation_id": "f545aae9-d633-4ba6-8bdd-f77883fdadd7",
  "date_created": "2026-03-02T18:00:32.654000Z",
  "date_modified": "2026-03-02T18:00:32.654000Z",
  "file_hash": "4983f71724377b582ca1e2127d5eb5b8d0bd6d223f8a61b20de6426b8e7e532a",
  "private": false,
  "record": {
    "abstract": "The electric field in mm-sized clouds of cold Rb^+-ions is measured using the\nStark effect of Rydberg atoms embedded in the ion clouds. The ion clouds are\nproduced by UV photoionization of laser-cooled rubidium atoms in a\nmagneto-optic trap. In very dense ion clouds, the Rydberg atom excitation\nspectra reflect the presence of a neutral plasma core and a positively charged\nion shell.",
    "arxiv_id": "physics/0007004",
    "authors": [
      "S. K. Dutta",
      "D. Feldbaum",
      "G. Raithel"
    ],
    "categories": [
      "physics.atom-ph",
      "physics.plasm-ph"
    ],
    "title": "Spectroscopic electric-field measurement in laser-excited plasmas",
    "url": "https://arxiv.org/abs/physics/0007004"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "93594ccd-16fc-4243-b63d-1614c3fcd0c2",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}