Atomic Physics Theory
Senior staff
Research programs
The Atomic Physics Theory Group deals with a variety of phenomena in atoms such as inner shell excitation,
electron capture, hollow atoms and analysis of atomic spectra. Computational methods used to make ab initio
calculations of atomic structures are Multi Configuration Hartree Fock and Multi Configuration Dirac Fock.
Other methods applied are B-splines and the recently developed Orthogonal Operator Technique.
Data from the orthogonal operator technique (energy level values and transition
probabilities) are available.
Publications on atomic physics
-J.E. Hansen, B.R. Judd, A.J.J. Raassen and P.H.M. Uylings:
Interpretation of higher order magnetic effects in spectra of transition metal ions in
terms of SO(5) and Sp(10).
Physical Review Letters 78, 3078-3081 (1997)
-C. Laughlin and J.E. Hansen:
An accurate model-potential description of the valence spectrum of Ca.
Journal of Physics B: Atom. Molec. Opt. Phys. 29, L441-7 (1996)
-A.J.J. Raassen and P.H.M. Uylings:
Orthogonal operator calculation of E1, M1 and E2 transition probabilities in Ti III and V IV.
Astronomy and Astrophysics Suppl. Series 123, 147-158 (1997)
-A.J.J. Raassen and P.H.M. Uylings:
The use of complete sets of orthogonal operators in spectroscopic studies.
Physica Scripta T65, 84-87 (1996)
-Ward, J.W; Raassen, A.J.J.; Kramida, A; Nave, G.
Spectra of Ni V and Fe V in the Vacuum Ultraviolet
ApJs 245, 22(2019)
-Peter Uylings and Ton Raassen
OrthogonalOperators: Applications, Origin and Outlook
Atoms(2019)
Ton Raassen
Peter Uylings
Other Atomic Physics Groups