109 citations · 207 across the 5 of their papers we have counts for
5 papers
The Casimir effect as scattering problem
Andreas Wirzba
We show that Casimir-force calculations for a finite number of non-overlapping obstacles can be mapped onto quantum-mechanical billiard-type problems which are characterized by the…
Studies of chaotic Dynamics in a Three-Dimensional Superconducting Microwave Billiard
H. Alt, H. -D. Graef, R. Hofferbert +5
We present first measurements on a superconducting three-dimensional, partly chaotic microwave billiard shaped like a small deformed cup. We analyze the statistical properties of t…
Three disks in a row: A two-dimensional scattering analog of the double-well problem
Andreas Wirzba, Per. E Rosenqvist
We investigate the scattering off three nonoverlapping disks equidistantly spaced along a line in the two-dimensional plane with the radii of the outer disks equal and the radius o…
Small Disks and Semiclassical Resonances
P. Rosenqvist, N. D. Whelan, A. Wirzba
We study the effect on quantum spectra of the existence of small circular disks in a billiard system. In the limit where the disk radii vanish there is no effect, however this limi…
Periodic Orbit Theory of Diffraction
Gábor Vattay, Andreas Wirzba, Per E. Rosenqvist
An extension of the Gutzwiller trace formula is given that includes diffraction effects due to hard wall scatterers or other singularities. The new trace formula involves periodic…