{
  "annotation_id": "b830c276-8a5b-4367-b1c5-a5536fd531b4",
  "date_created": "2026-03-02T18:00:32.928000Z",
  "date_modified": "2026-03-02T18:00:32.928000Z",
  "file_hash": "715eeadcd0d9b25dcea53e56248e2a651c3302e29f6f94218d8a77987992fc4e",
  "private": false,
  "record": {
    "abstract": "A new method for examining the possible space-time variation of the fine\nstructure constant ($\\alpha$) is proposed. The technique uses a relatively\nsimple measurement with an optical resonator to compare atom-stabilized optical\nfrequency references. This method does not require that the exact frequency of\neach reference be measured, and has the potential to yield more than a\n1000-fold improvement in experimental sensitivity to changes in $\\alpha$. A\nspecific realization of an experiment using this method is discussed which can\napproach the precision of ${\\dot\\alpha/\\alpha}\\sim10^{-18}/\\tau$, where $\\tau$\nis the measurement time. Moreover, for this specific realization, a measurement\nof ${\\dot\\alpha/\\alpha}\\sim10^{-15}/{\\rm yr}$ as a near-term goal is realistic.",
    "arxiv_id": "physics/0012054",
    "authors": [
      "J. R. Torgerson"
    ],
    "categories": [
      "physics.atom-ph",
      "physics.gen-ph",
      "physics.optics"
    ],
    "title": "Method for Precision Test of Fine Structure Constant Variation with   Optical Frequency References",
    "url": "https://arxiv.org/abs/physics/0012054"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "388ec1cd-68b4-4e2d-bb2a-050daa90a9ac",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}