Frequency ratios of Sr, Yb and Hg based optical lattice clocks and their applications

Masao Takamoto, Ichiro Ushijima, Manoj Das +8

This article describes the recent progress of optical lattice clocks with neutral strontium (${}^{87}$Sr), ytterbium (${}^{171}$Yb) and mercury (${}^{199}$Hg) atoms. In particular, we pr…