47 citations · 194 across the 5 of their papers we have counts for
5 papers
Spectroscopic studies in open quantum systems
I. Rotter, E. Persson, K. Pichugin +1
The spectroscopic properties of an open quantum system are determined by the eigenvalues and eigenfunctions of an effective Hamiltonian H consisting of the Hamiltonian H_0 of the c…
Frobenius-Perron Resonances for Maps with a Mixed Phase Space
Joachim Weber, Fritz Haake, Petr Seba
Resonances of the time evolution (Frobenius-Perron) operator P for phase space densities have recently been shown to play a key role for the interrelations of classical, semiclassi…
Interfering resonances in a quantum billiard
E. Persson, K. Pichugin, I. Rotter +1
We present a method for numerically obtaining the positions, widths and wavefunctions of resonance states in a two dimensional billiard connected to a waveguide. For a rectangular…
Point interaction in dimension two and three as models of small scatterers
P. Exner, P. Šeba
In addition to the conventional renormalized--coupling--constant picture, point interactions in dimension two and three are shown to model within a suitable energy range scattering…
Statistical properties of random scattering matrices
Petr Seba, Karol Zyczkowski, Jakub Zakrzewski
We discuss the properties of eigenphases of S--matrices in random models simulating classically chaotic scattering. The energy dependence of the eigenphases is investigated and the…