G. Plunien

QED corrections in heavy atoms

Abstract The comparison of theory and experiment for energy levels of strongly bound electrons provides a critical test of quantum electrodynamics in strong fields. A theoretical evaluation of the vacuum polarization and self energy radiative corrections to electron binding energies in heavy atoms is given. The calculations are done to all orders in the strength of the external field of the nucleus Zα . The influence of nuclear size and structure effects is investigated. The results for the Lamb shift are compared to the experimental data.

Dual kinetic balance approach to basis-set expansions for the dirac equation.

A new approach to finite basis sets for the Dirac equation is developed. It does not involve spurious states and improves the convergence properties of basis-set calculations. Efficiency of the method is demonstrated for finite basis sets constructed from B splines by calculating the one-loop self-energy correction for a hydrogenlike ion.

QED calculation of the n= 1 and n=2 energy levels in He-like ions

We perform ab initio QED calculations of energy levels for the

g Factor of Lithiumlike Silicon 28Si11

n=1

Trembling cavities in the canonical approach

and

Dynamical Casimir Effect at Finite Temperature

n=2

Experimental access to higher-order Zeeman effects by precision spectroscopy of highly charged ions in a Penning trap

states of He-like ions with the nuclear charge in the range

Nuclear polarization effects in spectra of multicharged ions

Z=12\text{\char21{}}100

Relativistic and QED corrections to the g factor of Li-like ions

. The complete set of two-electron QED corrections is evaluated to all orders in the parameter

Nuclear deformation effect on the binding energies in heavy ions

\ensuremath{\alpha}Z