{
  "annotation_id": "73326c9f-199f-4069-a869-605cd5858cb1",
  "date_created": "2026-03-02T18:02:40.713000Z",
  "date_modified": "2026-03-02T18:02:40.713000Z",
  "file_hash": "48680f548be73b7b27b607938563efed979fdf0d26c4435ea09355341e5568aa",
  "private": false,
  "record": {
    "abstract": "The coherent dark resonance between the hyperfine levels F=1, m=0 and F=2,\nm=0 of the rubidium ground state has been observed experimentally with the\nlight of a pulsed mode-locked diode laser operating at the D1 transition\nfrequency. The resonance occurs whenever the pulse repetition frequency matches\nan integer fraction of the rubidium 87 ground state hyperfine splitting of 6.8\nGHz. Spectra have been taken by varying the pulse repetition frequency. Using\ncells with argon as a buffer gas a linewidth as narrow as 149 Hz was obtained.\nThe rubidium ground state decoherence cross section 1.1*10^(-18) cm^2 for\ncollisions with xenon atoms has been measured for the first time with this\nmethod using a pure isotope rubidium vapor cell and xenon as a buffer gas.",
    "arxiv_id": "quant-ph/9803081",
    "authors": [
      "S. Brattke",
      "U. Kallmann",
      "W. -D. Hartmann"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1007/s100530050159",
    "title": "Coherent Dark States of Rubidium 87 in a Buffer Gas using Pulsed Laser   Light",
    "url": "https://arxiv.org/abs/quant-ph/9803081"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "e8eeb110-9a1f-4624-b1b8-700e21a95ce8",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}