Breit and QED Effects in Spectra of the 4s^{2 1}S₀−4s4p³P₁,¹P₁ Transitions in the Zn Sequence

The 4s²–4s4p E₁ transitions for Zn-like ions from Z in the range 30–92 are calculated using the multiconfi guration Dirac–Hartree–Fock (MCDHF) method. The results obtained are in good agreement with other theoretical and experimental data and demonstrate the applicability of this method to high-precision atomic structure calculations of both few-electron systems and large atomic systems, such as Zn-like ions, along the entire isoelectronic sequence. We also report herein the calculations of many-electron quantum electrodynamic (QED) and Breit effects for the ³P₀, ³P₁, ³P₂, and ¹P₁ states for all Zn-like ions in the range 30 ≤ Z ≤ 100.