44 citations · 66 across the 3 of their papers we have counts for
3 papers
physics.atom-ph2005★ 44 cited
Algebraic tools for dealing with the atomic shell model. I. Wavefunctions and integrals for hydrogen--like ions
Andrey Surzhykov, Peter Koval, Stephan Fritzsche
Today, the 'hydrogen atom model' is known to play its role not only in teaching the basic elements of quantum mechanics but also for building up effective theories in atomic and mo…
quant-ph2004★ 4 cited
Relativistic central--field Green's functions for the RATIP package
Peter Koval, Stephan Fritzsche
From perturbation theory, Green's functions are known for providing a simple and convenient access to the (complete) spectrum of atoms and ions. Having these functions available, t…
physics.atom-ph2003★ 18 cited
Electron angular distributions in the two--photon ionization of hydrogen--like ions: relativistic description
Peter Koval, Stephan Fritzsche, Andrey Surzhykov
The angular distribution of the emitted electrons, following the two--photon ionization of the hydrogen--like ions, is studied within the framework of second order perturbation the…