Vacuum polarization calculations for hydrogenlike and alkalilike ions
arXiv:physics/0308022 · doi:10.1103/PhysRevA.68.042111
Abstract
Complete vacuum polarization calculations incorporating finite nuclear size are presented for hydrogenic ions with principal quantum numbers n=1-5. Lithiumlike, sodiumlike, and copperlike ions are also treated starting with Kohn-Sham potentials, and including first-order screening corrections. In both cases dominant Uehling terms are calculated with high accuracy, and smaller Wichmann- Kroll terms are obtained using numerical electron Green's functions.
23 pages, 1 figure