QED contributions to the 2p-2stransitions in highly charged Li-like ions

Abstract

The QED contributions to the Li-like 2$p_{1/2}$-2$s_{1/2}$ and 2$p_{3/2}$-2$s_{1/2}$ transition energies have been calculated using Grant’s multiconfiguration Dirac-Fock computer package [Grant et al., Comput. Phys. Commun. 21, 207 (1980); McKenzie et al., ibid. 21, 233 (1980)]. The QED contributions were combined with the energies that were recently calculated by Johnson, Blundell, and Sapirstein [Phys. Rev. A 37, 2764 (1988)] using many-body perturbation theory. The resulting transition energies are in excellent agreement with the observed transition energies that are available for the ions with atomic numbers up to Z=36. Transition energies are predicted for the ions up to Z=54.