Jeff Sherman

collaborators

2 papers

physics.atom-ph2026

Phase-continuous comparison of three all-optical time scales over 20 days

Dahyeon Lee, Kyungtae Kim, Zoey Z. Hu +11

Optical frequency standards have progressed rapidly over the past two decades, leading to the anticipated redefinition of the SI second by an optical frequency. However, time scale…

physics.atom-ph2025

Atomic clock frequency ratios with fractional uncertainty $\leq 3.2 \times 1 0^{- 18}$

Alexander Aeppli, Willa J. Arthur-Dworschack, Kyle Beloy +24

We report high-precision frequency ratio measurements between optical atomic clocks based on $^{27}$ Al $^{+}$ , $^{171}$ Yb, and $^{87}$ Sr. With total fractional uncertainties at or bel…

Phase-continuous comparison of three all-optical time scales over 20 days

Atomic clock frequency ratios with fractional uncertainty ≤3.2×10−18

Atomic clock frequency ratios with fractional uncertainty $\leq 3.2 \times 1 0^{- 18}$