A large-scale relativistic configuration-interaction approach: application to the 4s2–4s4p transition energies and E1 rates for Zn-like ions

Abstract

Relativistic configuration-interaction calculations of the 4s4p excitation energies and 4s2–4s4p E1 transitions for Zn-like ions from Z = 30 to 92 are shown. B-spline basis functions are used for these large-scale calculations. QED corrections to the excitation energies are also calculated. Results are in good agreement with other theories and with experiment, and demonstrate the utility of this method for high-precision atomic structure calculations not just for few-electron systems but also for large atomic systems such as Zn-like ions along the entire isoelectronic sequence.