{
  "annotation_id": "20a31a84-5e35-420a-beb2-9770741cebcb",
  "date_created": "2026-03-02T18:01:35.133000Z",
  "date_modified": "2026-03-02T18:01:35.133000Z",
  "file_hash": "51b11c86341c1073301d7ff870085752384437138672c0249956f93f30cd865d",
  "private": false,
  "record": {
    "abstract": "We prove that it is possible to freeze a light pulse (i.e., to bring it to a\nfull stop) or even to make its group velocity negative in a coherently driven\nDoppler broadened atomic medium via electromagnetically induced transparency\n(EIT). This remarkable phenomenon of the ultra-slow EIT polariton is based on\nthe spatial dispersion of the refraction index $n(\\w,k)$, i.e., its wavenumber\ndependence, which is due to atomic motion and provides a negative contribution\nto the group velocity. This is related to, but qualitatively different from,\nthe recently observed light slowing caused by large temporal (frequency)\ndispersion.",
    "arxiv_id": "quant-ph/0001058",
    "authors": [
      "Olga Kocharovskaya",
      "Yuri Rostovtsev",
      "Marlan O. Scully"
    ],
    "categories": [
      "quant-ph"
    ],
    "title": "Freezing Light via hot gases",
    "url": "https://arxiv.org/abs/quant-ph/0001058"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "8d9cf6b0-8bfa-43b7-87f6-5d6aa04733f5",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}