50 citations · 126 across the 7 of their papers we have counts for
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Fictitious time wave packet dynamics: II. Hydrogen atom in external fields
T. Fabčič, J. Main, G. Wunner
In the preceding paper [T. Fabcic et al., preprint] "restricted Gaussian wave packets" were introduced for the regularized Coulomb problem in the four-dimensional Kustaanheimo-Stie…
Fictitious time wave packet dynamics: I. Nondispersive wave packets in the quantum Coulomb problem
T. Fabčič, J. Main, G. Wunner
Nondispersive wave packets in a fictitious time variable are calculated analytically for the field-free hydrogen atom. As is well known by means of the Kustaanheimo-Stiefel transfo…
Exceptional points in the spectra of atoms in external fields
Holger Cartarius, Jörg Main, Günter Wunner
We investigate exceptional points, which are branch point singularities of two resonance eigenstates, in spectra of the hydrogen atom in crossed external electric and magnetic fiel…
Signatures of the classical transition state in atomic quantum spectra
Holger Cartarius, Jörg Main, Günter Wunner
We perform quantum mechanically exact calculations of resonances in the spectrum of the hydrogen atom in crossed external fields and establish a close connection between the classi…