2 papers
nlin.CD2003
Uniform semiclassical approximations on a topologically non-trivial configuration space: The hydrogen atom in an electric field
T. Bartsch, J. Main, G. Wunner
Semiclassical periodic-orbit theory and closed-orbit theory represent a quantum spectrum as a superposition of contributions from individual classical orbits. Close to a bifurcatio…
nlin.CD2002
Semiclassical quantization of the hydrogen atom in crossed electric and magnetic fields
T. Bartsch, J. Main, G. Wunner
The S-matrix theory formulation of closed-orbit theory recently proposed by Granger and Greene is extended to atoms in crossed electric and magnetic fields. We then present a semic…