Development of Yb Optical Lattice Clock to 10 −17 Uncertainty Level and a New Clock Laser System at KRISS
2018
The systematic uncertainty of the Yb optical lattice clock has been improved to 8.3×10 −17 at KRISS, and the absolute frequency has been measured with uncertainty of 9.6×10 −16 referenced to the SI second (TT). We also describe future prospects to further reduce the systematic uncertainty and the absolute frequency measurement uncertainty. A new clock laser system has been developed to evaluate the uncertainties in reasonably short time.
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