The Application of Low-Frequency Transition in the Assessment of the Second-Order Zeeman Frequency Shift

doi:10.3390/s21248333

NTSC-IR > 量子频标研究室

	The Application of Low-Frequency Transition in the Assessment of the Second-Order Zeeman Frequency Shift
	Bai, Yang 1,2,3; Wang, Xinliang1,2 ; Shi, Junru 1,2,3; Yang, Fan 1,2,3; Ruan, Jun1,2 ; Dong, Ruifang 1,2; Zhang, Shougang 1,2
	2021-12-01
发表期刊	SENSORS
卷号	21 期号:24 页码:10
摘要	Second-order Zeeman frequency shift is one of the major systematic factors affecting the frequency uncertainty performance of cesium atomic fountain clock. Second-order Zeeman frequency shift is calculated by experimentally measuring the central frequency of the (1,1) or (-1,-1) magnetically sensitive Ramsey transition. The low-frequency transition method can be used to measure the magnetic field strength and to predict the central fringe of (1,1) or (-1,-1) magnetically sensitive Ramsey transition. In this paper, we deduce the formula for magnetic field measurement using the low-frequency transition method and measured the magnetic field distribution of 4 cm inside the Ramsey cavity and 32 cm along the flight region experimentally. The result shows that the magnetic field fluctuation is less than 1 nT. The influence of low-frequency pulse signal duration on the accuracy of magnetic field measurement is studied and the optimal low-frequency pulse signal duration is determined. The central fringe of (-1,-1) magnetically sensitive Ramsey transition can be predicted by using a numerical integrating of the magnetic field "map". Comparing the predicted central fringe with that identified by Ramsey method, the frequency difference between these two is, at most, a fringe width of 0.3. We apply the experimentally measured central frequency of the (-1,-1) Ramsey transition to the Breit-Rabi formula, and the second-order Zeeman frequency shift is calculated as 131.03 x 10(-15), with the uncertainty of 0.10 x 10(-15).
关键词	cesium atomic fountain clock second-order Zeeman frequency shift low-frequency transition
DOI	10.3390/s21248333
关键词[WOS]	ACCURACY EVALUATION ; CESIUM FOUNTAIN ; CLOCK
语种	英语
WOS研究方向	Chemistry ; Engineering ; Instruments & Instrumentation
WOS类目	Chemistry, Analytical ; Engineering, Electrical & Electronic ; Instruments & Instrumentation
WOS记录号	WOS:000742104600001
出版者	MDPI
引用统计
文献类型	期刊论文
条目标识符	http://210.72.145.45/handle/361003/14002
专题	量子频标研究室
通讯作者	Wang, Xinliang
作者单位	1.Chinese Acad Sci, Natl Time Serv Ctr, Shu Yuan Rd, Xian 710600, Peoples R China 2.Chinese Acad Sci, Natl Time Serv Ctr, Key Lab Time & Frequency Primary Stand, Xian 710600, Peoples R China 3.Univ Chinese Acad Sci, Yu Quan Rd, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Bai, Yang,Wang, Xinliang,Shi, Junru,et al. The Application of Low-Frequency Transition in the Assessment of the Second-Order Zeeman Frequency Shift[J]. SENSORS,2021,21(24):10.
APA	Bai, Yang.,Wang, Xinliang.,Shi, Junru.,Yang, Fan.,Ruan, Jun.,...&Zhang, Shougang.(2021).The Application of Low-Frequency Transition in the Assessment of the Second-Order Zeeman Frequency Shift.SENSORS,21(24),10.
MLA	Bai, Yang,et al."The Application of Low-Frequency Transition in the Assessment of the Second-Order Zeeman Frequency Shift".SENSORS 21.24(2021):10.