All papers · ⁸⁸Sr⁺ optical clock with 7.9×10⁻¹⁹ systematic uncertainty and measurement of its absolute frequency with 9.8×10⁻¹⁷ uncertainty
Absolute frequency $\nu_0 - 444\,779\,044\,095\,000$ Hz of each labelled measurement with error bars: this work (circles), NRC (up triangles), PTB (diamond), NPL (down triangles) and the Sr$^+$/Yb$^+$ ratio value (square); line and band: CIPM 2021 value and uncertainty. Rotated from the print (rows along x). TAI 2005's bar exceeds the axis and is not drawn.
This panel was recovered from the published vector figure. The plot shown here is re-rendered for interactive viewing and analysis. See the paper for the original figure and full scientific context.
License: CC BY 4.0.
Phys. Rev. Appl. 24, 044082 (2025) · DOI: 10.1103/czlf-bfvp · arXiv: 2509.05964