{
  "annotation_id": "78ff41ed-752e-43ee-adb5-cae7c21faac5",
  "date_created": "2026-03-02T18:00:50.441000Z",
  "date_modified": "2026-03-02T18:00:50.441000Z",
  "file_hash": "debae67650fdd10046e936e266b70974e2da73b8b484cd62b19a4cb08346b816",
  "private": false,
  "record": {
    "abstract": "We have measured the ac-Stark shift of the 4s2 1S0 - 4s4p 3P1 line in 40Ca\nfor perturbing laser wavelengths between 780 nm and 1064 nm with a time domain\nRamsey-Borde atom interferometer. We found a zero crossing of the shift for the\nmS = 0 - mP = 0 transition and \\sigma polarized perturbation at 800.8(22) nm.\nThe data was analyzed by a model deriving the energy shift from known\ntransition wavelengths and strengths. To fit our data, we adjusted the Einstein\nA coefficients of the 4s3d 3D - 4s4p 3P and 4s5s 3S - 4s4p 3P fine structure\nmultiplets. With these we can predict vanishing ac-Stark shifts for the 1S0 m =\n0 - 3P1 m = 1 transition and \\sigma- light at 983(12) nm and at 735.5(20) nm\nfor the transition to the 3P0 level.",
    "arxiv_id": "physics/0406018",
    "authors": [
      "Carsten Degenhardt",
      "Hardo Stoehr",
      "Uwe Sterr",
      "Fritz Riehle",
      "Christian Lisdat"
    ],
    "categories": [
      "physics.atom-ph"
    ],
    "doi": "10.1103/PhysRevA.70.023414",
    "title": "Wavelength dependent ac-Stark shift of the 1S0 - 3P1 transition at 657   nm in Ca",
    "url": "https://arxiv.org/abs/physics/0406018"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "9fa8d49e-0cc9-42ec-bdaa-233aa0b9cd26",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}