Precision determination of the ground-state hyperfine splitting of trapped ${}^{113}$Cd${}^{+}$ ions

S. N. Miao, J. W. Zhang, H. R. Qin +3

We measured the ground-state hyperfine splitting of trapped ${}^{113}$Cd${}^{+}$ ions to be 15199862855.02799(27) Hz with a fractional uncertainty of $1.8\times 10^{-14}$. The ions…