Author:
Ai Di,Qiao Hao,Zhang Shuang,Luo Li-Meng,Sun Chang-Yue,Zhang Sheng,Peng Cheng-Quan,Qi Qi-Chao,Jin Tao-Yun,Zhou Min,Xu Xin-Ye
Abstract
The optical atomic clocks have the potential to transform global timekeeping, relying on the state-of-the-art accuracy and stability, and greatly improve the measurement precision for a wide range of scientific and technological applications. Herein we report on the development of the optical clock based on 171Yb atoms confined in an optical lattice. A minimum width of 1.92-Hz Rabi spectra has been obtained with a new 578-nm clock interrogation laser. The in-loop fractional instability of the 171Yb clock reaches 9.1 × 10−18 after an averaging over a time of 2.0 × 104 s. By synchronous comparison between two clocks, we demonstrate that our 171Yb optical lattice clock achieves a fractional instability of
4.60
×
10
−
16
/
τ
.
Subject
General Physics and Astronomy
Cited by
8 articles.
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