{
  "annotation_id": "cfde7d18-bb66-409d-83f0-3c5f9fd5be34",
  "date_created": "2026-03-02T18:00:46.867000Z",
  "date_modified": "2026-03-02T18:00:46.867000Z",
  "file_hash": "89352051c8c0895dbe10528a7ce96e74bf7c1760ac32b6a4b882eef81aacb3f2",
  "private": false,
  "record": {
    "abstract": "We demonstrate a technique to measure hyperfine structure using a\nfrequency-stabilized diode laser and an acousto-optic modulator locked to the\nfrequency difference between two hyperfine peaks. We use this technique to\nmeasure hyperfine intervals in the $5P_{3/2}$ state of $^{85}$Rb and obtain a\nprecision of 20 kHz. We extract values for the magnetic-dipole coupling\nconstant $A=25.038(5)$ MHz and the electric-quadrupole coupling constant\n$B=26.011(22)$ MHz. These values are a significant improvement over previous\nresults.",
    "arxiv_id": "physics/0307090",
    "authors": [
      "Umakant D. Rapol",
      "Anusha Krishna",
      "Vasant Natarajan"
    ],
    "categories": [
      "physics.atom-ph",
      "physics.optics"
    ],
    "doi": "10.1140/epjd/e2003-00069-9",
    "journal_ref": "European Physical Journal D 23, 185-188 (2003)",
    "title": "Precise measurement of hyperfine structure in the $5P_{3/2}$ state of   $^{85}$Rb",
    "url": "https://arxiv.org/abs/physics/0307090"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "ba2d2fcb-41e3-4a50-a10f-510c0f37863e",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}