Improved absolute frequency measurement of the 171Yb optical lattice clock at KRISS relative to the SI second Excitation fraction

被引：32
|
作者：
Kim, Huidong [1 ]
Heo, Myoung-Sun [1 ]
Lee, Won-Kyu [1 ,2 ]
Park, Chang Yong [1 ,2 ]
Hong, Hyun-Gue [1 ]
Hwang, Sang-Wook [1 ]
Yu, Dai-Hyuk [1 ]
机构：
[1] Korea Res Inst Stand & Sci, Daejeon 34113, South Korea
[2] Univ Sci & Technol, Daejeon 34113, South Korea
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS | 2017年 / 56卷 / 05期
关键词：
UNCERTAINTY; TRANSITION; RATIO; YB; SHIFT; TIME; SR;
D O I：
10.7567/JJAP.56.050302
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We measured the absolute frequency of the S-1(0)-P-3(0) transition of Yb-171 atom confined in a one-dimensional optical lattice relative to the SI second. The determined frequency was 518 295 836 590 863.38(57) Hz. The uncertainty was reduced by a factor of 14 compared with our previously reported value in 2013 due to the significant improvements in decreasing the systematic uncertainties. This result is expected to contribute to the determination of a new recommended value for the secondary representations of the second. (C) 2017 The Japan Society of Applied Physics Excitation fraction
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页数：4
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