{
  "annotation_id": "3b678d8e-a694-433f-a0f6-b9a35a6d494d",
  "date_created": "2026-03-02T18:01:42.365000Z",
  "date_modified": "2026-03-02T18:01:42.365000Z",
  "file_hash": "ab8798e2a0ee7a4d2266fccb311e90a4254b60c3ab0623221b09df716fbeb6e3",
  "private": false,
  "record": {
    "abstract": "In recent years a significant amount of research in quantum optics has been\ndevoted to the analysis of atomic three-level systems and for many physical\nquantities the same effects have been predicted for different configurations.\nThese configurations can be split into essentially two classes. One for which\nthe system contains a metastable state and another where the system has two\nclose-lying levels and coherence effects become important. We demonstrate when\nand why for a wide range of parameters these two classes are in fact equivalent\nfor many important physical quantities. A unified picture underlying a large\nbody of work on these categories of atomic three-level systems is presented and\napplied to some examples.",
    "arxiv_id": "quant-ph/0103109",
    "authors": [
      "M. B. Plenio"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.62.015802",
    "journal_ref": "Physical Review A 62, 15802 (2000)",
    "title": "Equivalent classes of closed three-level systems",
    "url": "https://arxiv.org/abs/quant-ph/0103109"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "63c39e7b-9b44-4303-8ab4-2b7b393facee",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}