Symmetry breaking in atomic multi-configuration calculations
Wednesday 01 August 2012, 09:45-10:30
Seminar Room 1, Newton Institute
The multiconfiguration Dirac-Fock method allows to calculate the bound states of relativistic electrons in atoms or molecules. For a long time, this method has been known to provide certain "wrong" predictions in the nonrelativistic limit.
By describing in detail the nonlinear model obtained in the nonrelativistic limit for Berilyum-like atoms, we will show the origin of this phenomenon which is actually linked to symmetry breaking in the angular momentum of the configurations.
(These results are contained in a joint work with Mathieu Lewin and Andreas Savin).