{
  "annotation_id": "e4a18dd6-dd43-496d-8eb8-f06f95b95a25",
  "date_created": "2026-03-02T18:01:21.558000Z",
  "date_modified": "2026-03-02T18:01:21.558000Z",
  "file_hash": "9ae0c4ed802c911f899bbbac3bdb740851d66b6e06ed59d83492fa061ac5701f",
  "private": false,
  "record": {
    "abstract": "We present some recent progress achieved in the application of symmetry\nadaptation techniques to n-photon absorption spectroscopy of rare earth ions in\nfinite symmetry. More specifically, this work is concerned with the\ndetermination of the intensity of n-photon transitions between Stark levels\n(rather than J levels) of an ion in an environment with a given symmetry. The\nrole of symmetry is taken into account through the use of initial and final\nstate vectors characterized by irreducible representations of the (double)\ngroup for the ion site symmetry. Two distinct situations are considered, viz.,\nthe case of parity-allowed and parity-forbidden n-photon transitions.",
    "arxiv_id": "physics/9810055",
    "authors": [
      "M. Daoud",
      "M. Kibler"
    ],
    "categories": [
      "physics.atm-clus",
      "cond-mat.soft",
      "physics.chem-ph"
    ],
    "journal_ref": "J. Alloys and Compounds 193 (1993) 219-222",
    "title": "Symmetry Adaptation Techniques in n-Photon Absorption Spectroscopy",
    "url": "https://arxiv.org/abs/physics/9810055"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "993230bb-db5e-4728-b42c-39e2c136d146",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}