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	Preliminary Frequency Comparison of Two Ca-40(+) Optical Frequency Standards
	Liu Pei-Liang1,2,3; Huang Yao1,2; Bian Wu1,2,3; Shao Hu1,2,3; Qian Yuan1,2,3; Guan Hua1,2; Gao Ke-Lin1,2
刊名	CHINESE PHYSICS LETTERS
	2014-11-01
卷号	31期号:11
英文摘要	Frequency comparison is one of the most efficient ways to evaluate the performance of a frequency standard. Based on the pre-existing Ca-40(+) optical frequency standard, we set up the second Ca-40(+) optical frequency standard, which has been improved in the materials and structure of ion traps for better control of the magnetic field. After the compensation, the residual magnetic field at the position of the ion is adjusted to be similar to 500 nT with a long time jitter of similar to 10 nT, which is better than the pre-existing Ca-40(+) optical frequency standard. We realize the '4-point-closed-loop locking' on the second Ca-40(+) optical frequency standard after a series of preparatory works. Through half an hour of measurement time, the two frequency standards exhibited a stability of 2.1x10(-13)tau(-1/2) and a relative frequency difference of 1.5 (2.9) Hz.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Physics, Multidisciplinary
研究领域[WOS]	Physics
关键词[WOS]	LATTICE CLOCK ; PAUL TRAP ; ION ; LASER
收录类别	SCI
语种	英语
WOS记录号	WOS:000345156300013
公开日期	2016-05-09
内容类型	期刊论文
源URL	[http://ir.wipm.ac.cn/handle/112942/1402]
专题	武汉物理与数学研究所_原子频标研究部
作者单位	1.Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Peoples R China 2.Chinese Acad Sci, Wuhan Inst Phys & Math, Key Lab Atom Frequency Stand, Wuhan 430071, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Liu Pei-Liang,Huang Yao,Bian Wu,et al. Preliminary Frequency Comparison of Two Ca-40(+) Optical Frequency Standards[J]. CHINESE PHYSICS LETTERS,2014,31(11).
APA	Liu Pei-Liang.,Huang Yao.,Bian Wu.,Shao Hu.,Qian Yuan.,...&Gao Ke-Lin.(2014).Preliminary Frequency Comparison of Two Ca-40(+) Optical Frequency Standards.CHINESE PHYSICS LETTERS,31(11).
MLA	Liu Pei-Liang,et al."Preliminary Frequency Comparison of Two Ca-40(+) Optical Frequency Standards".CHINESE PHYSICS LETTERS 31.11(2014).

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