{
  "annotation_id": "8116ed00-515e-466d-b8f9-df5af3744755",
  "date_created": "2026-03-02T18:02:20.751000Z",
  "date_modified": "2026-03-02T18:02:20.751000Z",
  "file_hash": "ac1e727e1cea2519982d955a1df96a64e170833cd0024d3c75b7506c76a12b6c",
  "private": false,
  "record": {
    "abstract": "The collective interaction via the environmental vacuum is investigated for a\nmixture of two deviating multi-atom ensembles in a moderately intense laser\nfield. Due to the numerous inter-atomic couplings, the laser-dressed system may\nreact sensitively and rapidly with respect to changes in the atomic and laser\nparameters. We show for weak probe fields that in the absence of absorption\nboth the index of refraction and the group velocity may be modified strongly\nand rapidly due to the collectivity.",
    "arxiv_id": "quant-ph/0507244",
    "authors": [
      "Mihai Macovei",
      "Christoph H Keitel"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1088/0953-4075/38/19/L02",
    "journal_ref": "J. Phys. B: At. Mol. Opt. 38, L315 (2005)",
    "title": "Rapid refractive index enhancements via laser-mediated collectivity",
    "url": "https://arxiv.org/abs/quant-ph/0507244"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "09b21be9-4ec3-4b31-840f-f6abbd965686",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}