154 citations · 1.8k across the 95 of their papers we have counts for
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Closed orbits and their bifurcations in the crossed-fields hydrogen atom
T. Bartsch, J. Main, G. Wunner
A systematic study of closed classical orbits of the hydrogen atom in crossed electric and magnetic fields is presented. We develop a local bifurcation theory for closed orbits whi…
Periodic orbit quantization of the closed three-disk billiard as an example of a chaotic system with strong pruning
K. Weibert, J. Main, G. Wunner
Classical chaotic systems with symbolic dynamics but strong pruning present a particular challenge for the application of semiclassical quantization methods. In the present study w…
Semiclassical quantization with bifurcating orbits
T. Bartsch, J. Main, G. Wunner
Bifurcations of classical orbits introduce divergences into semiclassical spectra which have to be smoothed with the help of uniform approximations. We develop a technique to extra…
Periodic orbit quantization of chaotic systems with strong pruning
K. Weibert, J. Main, G. Wunner
The three-disk system, which for many years has served as a paradigm for the usefulness of cycle expansion methods, represents an extremely hard problem to semiclassical quantizati…