Poster Session on Relativistic Atomic Structure

Abstract

Various methods of calculating energy levels in few-electron ions are compared. Methods considered are expansions in powers of 1/Z and Za, and approaches that take into account nonrelativistic correlation effects and relativistic and quantum electrodynamic effects separately. These approaches are contrasted to methods that deal with correlation and relativistic effects simultaneously, such as multiconfiguration Dirac-Fock and Relativistic Random Phase Approximation calculations.