Evaluation of trap-induced systematic frequency shifts for a multi-ion optical clock at the $10^{-19}$ level

J. Keller, T. Burgermeister, D. Kalincev +2

In order to improve the short-term stability of trapped-ion optical clocks, we are developing a frequency standard based on ${}^{115}$In${}^{+}$ / ${}^{172}$Yb${}^{+}$ Coulomb crystals…