{
  "annotation_id": "80d3f260-35fd-4561-807e-f260c62b1e22",
  "date_created": "2026-03-02T18:02:34.482000Z",
  "date_modified": "2026-03-02T18:02:34.482000Z",
  "file_hash": "644adb978b104a683a17262c43492ee712ab63ba7fda7d1a53b082aa14808270",
  "private": false,
  "record": {
    "abstract": "Electromagnetically induced transparency and coherent population trapping\nwere observed in a hot (1000 K) calcium vapor embedded into an electrical gas\ndischarge. Unexpectedly large transparencies (of up to 70%) were observed under\nvery unfavorable conditions: probe wavelength shorter than the coupling\nwavelength, and coupling Rabi frequency significantly smaller than the residual\nDoppler linewidth of the two photon transition. We developed a theoretical\nmodel that shows that the observed results are due to the combined effects of a\nstrong probe beam and a small open character of the atomic system. Coherent\npopulation trapping also manifests itself as a change in the impedance of the\ngas discharge, and the phenomenon can be probed with high sensitivity via the\noptogalvanic effect.",
    "arxiv_id": "quant-ph/0611291",
    "authors": [
      "Luis E. E. de Araujo",
      "Silvania A. Carvalho",
      "Luciano S. Soares",
      "Antonio A. Soares",
      "Armando Mirage",
      "Daniel Pereira",
      "Flavio C. Cruz"
    ],
    "categories": [
      "quant-ph"
    ],
    "title": "Strong electromagnetically induced transparency in atomic media with   large residual Doppler broadening",
    "url": "https://arxiv.org/abs/quant-ph/0611291"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "9d7b63a8-4e4a-46ae-b8d6-d4d9cd067fef",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}