Popis: |
A numerical evaluation of the radiative corrections for the energies of the 2s, 2p, and 1s states of the Li isoelectronic sequence has been carried out. The results are based on the ab initio QED calculations made previously by two of the authors. Those for the 2s-2p Lamb shift are almost all in agreement with experiment. The main effect of screening involves a renormalization of the valence electron wave function at the origin. As expected, the smaller effects, originating in interactions between two electrons, play a significant role only for the lower range of Z values. Subtler QED effects appear in the p-state (rather than s-state) energies and will become more apparent in other atoms such as B. |