{
  "annotation_id": "06b4ac2f-79c4-42aa-980e-e98f3aae638c",
  "date_created": "2026-03-02T18:01:04.352000Z",
  "date_modified": "2026-03-02T18:01:04.352000Z",
  "file_hash": "651f6d0415aac6e79b9d315c009a2d6ec25c7cea0aed04fe52317604b117b8d3",
  "private": false,
  "record": {
    "abstract": "We report direct single-laser excitation of the strictly forbidden\n(6s^2)^1S_0 -(6s6p)^3P_0 clock transition in the even 174Yb isotope confined to\na 1D optical lattice. A small (~1.2 mT) static magnetic field was used to\ninduce a nonzero electric dipole transition probability between the clock\nstates at 578.42 nm. Narrow resonance linewidths of 20 Hz (FHWM) with high\ncontrast were observed, demonstrating a record neutral-atom resonance quality\nfactor of 2.6x10^13. The previously unknown ac Stark shift-canceling (magic)\nwavelength was determined to be 759.35+/-0.02 nm. This method for using the\nmetrologically superior even isotope can be easily implemented in current Yb\nand Sr lattice clocks, and can create new clock possibilities in other alkaline\nearth-like atoms such as Mg and Ca.",
    "arxiv_id": "physics/0512084",
    "authors": [
      "Zeb W. Barber",
      "Chad W. Hoyt",
      "Chris W. Oates",
      "Leo Hollberg",
      "Aleksei V. Taichenachev",
      "Valera I. Yudin"
    ],
    "categories": [
      "physics.atom-ph"
    ],
    "doi": "10.1103/PhysRevLett.96.083002",
    "title": "Direct excitation of the forbidden clock transition in neutral 174Yb   atoms confined to an optical lattice",
    "url": "https://arxiv.org/abs/physics/0512084"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "ee5ae421-bb81-4893-a993-7994dcbd7e01",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}