Improvement of Stability of ~(40)Ca~+ Optical Clock with State Preparation

	Improvement of Stability of ~(40)Ca~+ Optical Clock with State Preparation
	Zeng Mengyan; Huang Yao; Shao Hu; Wang Miao; Zhang Huaqing; Zhang Baolin; Guan Hua; Gao Kelin
刊名	Chinese Physics Letters
	2018
卷号	35 期号:7
ISSN号	0256-307X
英文摘要	Stability is one of most important performances of an atomic clock. Here we describe our recent work on improving the stability of our Ca-40(+) optical clock. State preparation is adopted to transfer the ion to the groundstate magnetic sublevel of the clock transition, after the quenching laser transfers the ion to the ground state at each cycle. Using this method, the stability for Ca-40(+) optical clock is improved to about 6.3 x 10(-15)/root T. Compared with 1.0 x 10(-14)/root T in previous work, the averaging time is decreased to reach a given level of statistical uncertainty in a clock comparison.
资助项目	[National Key R&D Program of China] ; [National Natural Science Foundation of China] ; [Strategic Priority Research Program B of Chinese Academy of Sciences] ; [Hubei Provincial Science Fund for Distinguished Young Scholars] ; [Youth Innovation Promotion Association of Chinese Academy of Sciences]
语种	英语
内容类型	期刊论文
源URL	[http://ir.wipm.ac.cn/handle/112942/16780]
专题	中国科学院武汉物理与数学研究所
作者单位	中国科学院武汉物理与数学研究所
推荐引用方式 GB/T 7714	Zeng Mengyan,Huang Yao,Shao Hu,et al. Improvement of Stability of ~(40)Ca~+ Optical Clock with State Preparation[J]. Chinese Physics Letters,2018,35(7).
APA	Zeng Mengyan.,Huang Yao.,Shao Hu.,Wang Miao.,Zhang Huaqing.,...&Gao Kelin.(2018).Improvement of Stability of ~(40)Ca~+ Optical Clock with State Preparation.Chinese Physics Letters,35(7).
MLA	Zeng Mengyan,et al."Improvement of Stability of ~(40)Ca~+ Optical Clock with State Preparation".Chinese Physics Letters 35.7(2018).