{
  "annotation_id": "26e97e27-0e89-4a05-b23a-4aa3e17d55c3",
  "date_created": "2026-03-02T18:01:03.277000Z",
  "date_modified": "2026-03-02T18:01:03.277000Z",
  "file_hash": "8e2cc2ec6dcccac64d3dec04ac71062aa49aced025725571c30414326e048765",
  "private": false,
  "record": {
    "abstract": "We consider several transitions between narrow lines that have an enhanced\nsensitivity to a possible variation of the fine structure constant, alpha. This\nenhancement may allow a search to be performed with an effective suppression of\nthe systematic sources of uncertainty that are unavoidable in conventional\nhigh-resolution spectroscopic measurements. In the future this may provide the\nstrongest laboratory constraints on alpha variation.",
    "arxiv_id": "physics/0511180",
    "authors": [
      "S. G. Karshenboim",
      "A. Yu. Nevsky",
      "E. J. Angstmann",
      "V. A. Dzuba",
      "V. V. Flambaum"
    ],
    "categories": [
      "physics.atom-ph"
    ],
    "doi": "10.1088/0953-4075/39/8/011",
    "journal_ref": "J.Phys.B.At.Mol.Opt.Phys.39:1937-1944,2006",
    "title": "A New Option for a Search for Alpha Variation: Narrow Transitions with   Enhanced Sensitivity",
    "url": "https://arxiv.org/abs/physics/0511180"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "5ed95d2e-8dc7-4708-8495-d69031c9626e",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}