Zhao Qi

collaborators

2 papers

physics.atom-ph2025

Optical clocks with accuracy validated at the 19th digit

K. J. Arnold, M. D. K. Lee, Zhao Qi +4

We report a comprehensive evaluation of all known sources of systematic uncertainty for two independent $^{176}$ Lu $^{+}$ single-ion optical references, finding total systematic uncer…

physics.atom-ph2025

Absolute frequency measurement of a Lu $^{+}$ $(^{3} D_{1})$ optical frequency standard via link to international atomic time

Zhao Zhang, Qi Zhao, Qin Qichen +4

We report on an absolute frequency measurement of the $Lu^{+} (^{3} D_{1})$ standard frequency which is defined as the hyperfine-average of $^{1} S_{0}$ to $^{3} D_{1}$ o…

Optical clocks with accuracy validated at the 19th digit

Absolute frequency measurement of a Lu+ (3D1​) optical frequency standard via link to international atomic time

Absolute frequency measurement of a Lu $^{+}$ $(^{3} D_{1})$ optical frequency standard via link to international atomic time