Improved Absolute Frequency Measurement of the 171Yb Optical Lattice Clock at KRISS Relative to the SI Second
Atomic Physics
2017-04-26 v2
Abstract
We measured the absolute frequency of the - transition of Yb atoms 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.
Keywords
Cite
@article{arxiv.1701.04534,
title = {Improved Absolute Frequency Measurement of the 171Yb Optical Lattice Clock at KRISS Relative to the SI Second},
author = {Huidong Kim and Myoung-Sun Heo and Won-Kyu Lee and Chang Yong Park and Hyun-Gue Hong and Sang-Wook Hwang and Dai-Hyuk Yu},
journal= {arXiv preprint arXiv:1701.04534},
year = {2017}
}