{
  "annotation_id": "595f286e-b6eb-436d-8db1-37db5dcf3bdd",
  "date_created": "2026-03-02T18:00:56.915000Z",
  "date_modified": "2026-03-02T18:00:56.915000Z",
  "file_hash": "b5de5e0cbd10b4a78540315a4d3bf6f6825e114087b3ec9dd715911a8d91c226",
  "private": false,
  "record": {
    "abstract": "Using a single trapped barium ion we have developed an rf spectroscopy\ntechnique to measure the ratio of the off-resonant vector ac Stark effect (or\nlight shift) in the 6S_{1/2} and 5D_{3/2} states to 0.1% precision. We find R =\nDelta_S / Delta_D = -11.494(13) at 514.531 nm where Delta_{S,D} are the light\nshifts of the m = +/- 1/2 splittings due to circularly polarized light.\nComparison of this result with an ab initio calculation of R would yield a new\ntest of atomic theory. By appropriately choosing an off-resonant light shift\nwavelength one can emphasize the contribution of one or a few dipole matrix\nelements and precisely determine their values.",
    "arxiv_id": "physics/0502113",
    "authors": [
      "J. A. Sherman",
      "T. W. Koerber",
      "A. Markhotok",
      "W. Nagourney",
      "E. N. Fortson"
    ],
    "categories": [
      "physics.atom-ph"
    ],
    "doi": "10.1103/PhysRevLett.94.243001",
    "title": "Precision measurement of light shifts in a single trapped Ba$^+$ ion",
    "url": "https://arxiv.org/abs/physics/0502113"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "e1244951-26c2-4460-bbf1-9473120f3151",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}