期刊
JAPANESE JOURNAL OF APPLIED PHYSICS
卷 56, 期 5, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.7567/JJAP.56.050302
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资金
- Korea Research Institute of Standards and Science [17011005]
- R&D Convergence Program of NST (National Research Council of Science and Technology) of Republic of Korea [CAP-15-08-KRISS]
- National Research Council of Science & Technology (NST), Republic of Korea [CAP-15-08-KRISS] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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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