{
  "annotation_id": "3404a72d-3454-4783-996d-2f0f44f1cd47",
  "date_created": "2026-03-02T18:00:36.157000Z",
  "date_modified": "2026-03-02T18:00:36.157000Z",
  "file_hash": "83e9c35baa272bcefcbc99eae6dad8bb64e0a9b1cd18a58be8d8a856f357394c",
  "private": false,
  "record": {
    "abstract": "Photoabsorption cross sections of small sodium cluster cations (Na$_n^+$,\nn=3,5,7 and 9) were calculated at various temperatures with the time-dependent\nlocal-density-approximation (TDLDA) in conjunction with ab initio molecular\ndynamics simulations, yielding spectra that agree with measured ones without\nad-hoc line broadening or renormalization. Three thermal line-broadening\nmechanisms are revealed: (I) lifting of level degeneracies caused by\nsymmetry-breaking ionic motions, (II) oscillatory shifts of the entire spectrum\ncaused by breathing vibrations, and (III) cluster structural isomerizations.",
    "arxiv_id": "physics/0105078",
    "authors": [
      "M. Moseler",
      "H. Hakkinen",
      "Uzi Landman"
    ],
    "categories": [
      "physics.atm-clus",
      "physics.comp-ph"
    ],
    "doi": "10.1103/PhysRevLett.87.053401",
    "title": "Photoabsorption Spectra of Na_n+ clusters: Thermal Line-Broadening   Mechanisms",
    "url": "https://arxiv.org/abs/physics/0105078"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "f5e299e3-e6f2-47f2-ad35-0c99a2931756",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}