154 citations · 1.8k across the 95 of their papers we have counts for
19 papers · 1 filter
GOE-GUE-Poisson transitions in the nearest neighbor spacing distribution of magnetoexcitons
Frank Schweiner, Jörg Main, Günter Wunner
Recent investigations on the Hamiltonian of excitons by F. Schweiner et al. [Phys. Rev. Lett. 118, 046401 (2017)] revealed that the combined presence of a cubic band structure and…
Exceptional points in the elliptical three-disk scatterer using semiclassical periodic orbit quantization
Niklas Liebermann, Jörg Main, Günter Wunner
The three-disk scatterer has served as a paradigm for semiclassical periodic orbit quantization of classical chaotic systems using Gutzwiller's trace formula. It represents an open…
Construction of Darboux coordinates in noncanonical Hamiltonian systems via normal form expansions
Andrej Junginger, Jörg Main, Günter Wunner
Darboux's theorem guarantees the existence of local canonical coordinates on symplectic manifolds under certain conditions. We demonstrate a general method to construct such Darbou…
Harmonic inversion analysis of exceptional points in resonance spectra
Jacob Fuchs, Jörg Main, Holger Cartarius +1
The spectra of, e.g. open quantum systems are typically given as the superposition of resonances with a Lorentzian line shape, where each resonance is related to a simple pole in t…
Transition state theory for wave packet dynamics. I. Thermal decay in metastable Schrödinger systems
Andrej Junginger, Jörg Main, Günter Wunner +1
We demonstrate the application of transition state theory to wave packet dynamics in metastable Schrödinger systems which are approached by means of a variational ansatz for the wa…
Semiclassical quantization of the diamagnetic hydrogen atom with near action-degenerate periodic-orbit bunches
Jan Gehrke, Jörg Main, Günter Wunner
The existence of periodic orbit bunches is proven for the diamagnetic Kepler problem. Members of each bunch are reconnected differently at self-encounters in phase space but have n…