Interrogation of optical Ramsey spectrum and stability study of an Sr-87 optical lattice clock

doi:10.1088/1674-1056/ac11e0

NTSC-IR > 量子频标研究室

	Interrogation of optical Ramsey spectrum and stability study of an Sr-87 optical lattice clock
	Xia, Jing-Jing 1; Lu, Xiao-Tong 1,2; Chang, Hong1,2
	2022-02-01
发表期刊	CHINESE PHYSICS B
ISSN	1674-1056
卷号	31 期号:3 页码:5
摘要	The optical Ramsey spectrum is experimentally realized in an Sr-87 optical lattice clock, and the measured linewidth agrees well with theoretical expectation. The coherence time between the clock laser and the atoms, which indicates the maximum free evolution period of using Ramsey detection to measure the atom-laser phase information, is determined as 340(23) ms by measuring the fringe contrasts of the Ramsey spectrum as a function of the free evolution period. Furthermore, with the same clock duty cycle of about 0.1, the clock stability is measured by using the Ramsey and Rabi spectra, respectively. The experimental and theoretical results show approximately the same stability as the two detection methods, which indicates that Ramsey detection cannot obviously improve the clock stability until the clock duty cycle is large enough. Thus, it is of great significance to choose the detection method of a specific clock.
关键词	optical Ramsey spectrum optical lattice clock stability coherence time
资助者	National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Project of Frontier Science of the Chinese Academy of Sciences ; Key Research Project of Frontier Science of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Project of Frontier Science of the Chinese Academy of Sciences ; Key Research Project of Frontier Science of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Project of Frontier Science of the Chinese Academy of Sciences ; Key Research Project of Frontier Science of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Project of Frontier Science of the Chinese Academy of Sciences ; Key Research Project of Frontier Science of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences
DOI	10.1088/1674-1056/ac11e0
关键词[WOS]	COHERENCE ; QUANTUM
语种	英语
资助项目	National Natural Science Foundation of China[61775220] ; Key Research Project of Frontier Science of the Chinese Academy of Sciences[QYZDB-SSW-JSC004] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB21030100]
资助者	National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Project of Frontier Science of the Chinese Academy of Sciences ; Key Research Project of Frontier Science of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Project of Frontier Science of the Chinese Academy of Sciences ; Key Research Project of Frontier Science of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Project of Frontier Science of the Chinese Academy of Sciences ; Key Research Project of Frontier Science of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Project of Frontier Science of the Chinese Academy of Sciences ; Key Research Project of Frontier Science of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences
WOS研究方向	Physics
WOS类目	Physics, Multidisciplinary
WOS记录号	WOS:000757598000001
出版者	IOP Publishing Ltd
引用统计
文献类型	期刊论文
条目标识符	http://210.72.145.45/handle/361003/13915
专题	量子频标研究室
通讯作者	Chang, Hong
作者单位	1.Natl Time Serv Ctr, CAS Key Lab Time & Frequency Primary Stand, Xian 710600, Peoples R China 2.Univ Chinese Acad Sci CAS, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Xia, Jing-Jing,Lu, Xiao-Tong,Chang, Hong. Interrogation of optical Ramsey spectrum and stability study of an Sr-87 optical lattice clock[J]. CHINESE PHYSICS B,2022,31(3):5.
APA	Xia, Jing-Jing,Lu, Xiao-Tong,&Chang, Hong.(2022).Interrogation of optical Ramsey spectrum and stability study of an Sr-87 optical lattice clock.CHINESE PHYSICS B,31(3),5.
MLA	Xia, Jing-Jing,et al."Interrogation of optical Ramsey spectrum and stability study of an Sr-87 optical lattice clock".CHINESE PHYSICS B 31.3(2022):5.