Atomic energy levels with QED and contribution of the screened self-energy

Éric-Olivier Le Bigot
2001 AIP Conference Proceedings  
We present an introduction to the principles behind atomic energy level calculations with Quantum Electrodynamics (QED) and the two-time Green's function method; this method allows one to calculate an effective Hamiltonian that contains all QED effects and that can be used to predict QED Lamb shifts of degenerate, quasidegenerate and isolated atomic levels.
doi:10.1063/1.1374979 fatcat:22ovbr6dibdvbojxzcdfuhhtyq