{
  "annotation_id": "7cd4bf5f-ae55-47ab-801a-d3a139158a16",
  "date_created": "2026-03-02T18:02:09.938000Z",
  "date_modified": "2026-03-02T18:02:09.938000Z",
  "file_hash": "04cf9e4ca989d3c2b6db866544d1df2206c1852a07daecdc733fd2fbfa590650",
  "private": false,
  "record": {
    "abstract": "We discuss a laser cooling scheme for trapped atoms or ions which is based on\ndouble electromagnetically induced transparency (EIT) and makes use of a\nfour-level atom in tripod configuration. The additional fourth atomic state is\ncoupled by a strong coupling laser field to the usual three-level setup of\nsingle-EIT cooling. This effectively allows to create two EIT structures in the\nabsorption spectrum of the system to be cooled, which may be controlled by the\ncoupling laser field parameters to cancel both the carrier- and the\nblue-sideband excitations. In leading order of the Lamb-Dicke expansion, this\nsuppresses all heating processes. As a consequence, the double-EIT scheme can\nbe used to lower the cooling limit by almost two powers of the Lamb-Dicke\nparameter as compared to single-EIT cooling.",
    "arxiv_id": "quant-ph/0406204",
    "authors": [
      "Joerg Evers",
      "Christoph H. Keitel"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1209/epl/i2004-10207-5",
    "journal_ref": "Europhys. Lett. 68, 370 (2004)",
    "title": "Double-EIT ground-state laser cooling without blue-sideband heating",
    "url": "https://arxiv.org/abs/quant-ph/0406204"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "b5be2912-31ac-4aa8-b879-2beeb2806f77",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}