An Evaluation of the Zeeman Shift of the Sr-87 Optical Lattice Clock at the National Time Service Center

doi:10.3390/app10041440

	An Evaluation of the Zeeman Shift of the Sr-87 Optical Lattice Clock at the National Time Service Center
	Lu, Xiaotong 1,2; Chang, Hong 2; Yin, Mojuan 1,2; Li, Ting 2; Wang, Yebing 2
刊名	APPLIED SCIENCES-BASEL
	2020-02-01
卷号	10 期号:4 页码:8
关键词	Zeeman shift optical lattice clocks strontium atoms optical lattices laser cooling and trapping
DOI	10.3390/app10041440
英文摘要	The Zeeman shift plays an important role in the evaluation of optical lattice clocks since a strong bias magnetic field is applied for departing Zeeman sublevels and defining a quantization axis. We demonstrated the frequency correction and uncertainty evaluation due to Zeeman shift in the Sr-87 optical lattice clock at the National Time Service Center. The first-order Zeeman shift was almost completely removed by stabilizing the clock laser to the average frequency of the two Zeeman components of m(F) = +/- 9/2. The residual first-order Zeeman shift arose from the magnetic field drift between measurements of the two stretched-state center frequencies; the upper bound was inferred as 4(5) x 10(-18). The quadratic Zeeman shift coefficient was experimentally determined as -23.0(4) MHz/T-2 and the final Zeeman shift was evaluated as 9.20(7) x 10(-17). The evaluation of the Zeeman shift is a foundation for overall evaluation of the uncertainty of an optical lattice clock. This measurement can provide more references for the determination of the quadratic coefficient of Sr-87.
资助项目	National Natural Science Foundation of China[61775220] ; National Key R&D Program of China[2016YFF0200201] ; 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] ; Youth innovation promotion Association the Chinese Academy of Sciences[2019400]
WOS关键词	FREQUENCY ; ACCURACY ; LASER
WOS研究方向	Chemistry ; Engineering ; Materials Science ; Physics
语种	英语
出版者	MDPI
WOS记录号	WOS:000525287900247
资助机构	National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program 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 ; Youth innovation promotion Association the Chinese Academy of Sciences ; Youth innovation promotion Association the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program 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 ; Youth innovation promotion Association the Chinese Academy of Sciences ; Youth innovation promotion Association the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program 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 ; Youth innovation promotion Association the Chinese Academy of Sciences ; Youth innovation promotion Association the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program 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 ; Youth innovation promotion Association the Chinese Academy of Sciences ; Youth innovation promotion Association the Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://210.72.145.45/handle/361003/9612]
专题	国家授时中心_量子频标研究室
通讯作者	Wang, Yebing
作者单位	1.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Natl Time Serv Ctr, Key Lab Time & Frequency Primary Stand, Xian 710600, Peoples R China
推荐引用方式 GB/T 7714	Lu, Xiaotong,Chang, Hong,Yin, Mojuan,et al. An Evaluation of the Zeeman Shift of the Sr-87 Optical Lattice Clock at the National Time Service Center[J]. APPLIED SCIENCES-BASEL,2020,10(4):8.
APA	Lu, Xiaotong,Chang, Hong,Yin, Mojuan,Li, Ting,&Wang, Yebing.(2020).An Evaluation of the Zeeman Shift of the Sr-87 Optical Lattice Clock at the National Time Service Center.APPLIED SCIENCES-BASEL,10(4),8.
MLA	Lu, Xiaotong,et al."An Evaluation of the Zeeman Shift of the Sr-87 Optical Lattice Clock at the National Time Service Center".APPLIED SCIENCES-BASEL 10.4(2020):8.