{
  "annotation_id": "d67fbd73-e0fb-4b17-8fa1-6ef13da86207",
  "date_created": "2026-03-02T18:00:56.996000Z",
  "date_modified": "2026-03-02T18:00:56.996000Z",
  "file_hash": "d0f41b392ac4005b1e39b49e72aa1838f176ecf697f5281a52dcf3fd263cb3b7",
  "private": false,
  "record": {
    "abstract": "The optical response of the lowest energy isomers of the B_20 family is\ncalculated using time-dependent density functional theory within a real-space,\nreal-time scheme. Significant differences are found among the absorption\nspectra of the clusters studied. We show that these differences can be easily\nrelated to changes in the overall geometry. Optical spectroscopy is thus an\nefficient tool to characterize the planar to tubular structural transition,\nknown to be present in these boron based systems.",
    "arxiv_id": "physics/0504090",
    "authors": [
      "Miguel A. L. Marques",
      "Silvana Botti"
    ],
    "categories": [
      "physics.atm-clus"
    ],
    "doi": "10.1063/1.1948386",
    "title": "The planar-to-tubular structural transition in boron clusters from   optical absorption",
    "url": "https://arxiv.org/abs/physics/0504090"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "902a2fad-c062-43d1-a397-b739637a7cd6",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}