336 citations · 1.4k across the 26 of their papers we have counts for
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Spectral properties of Dirac billiards at the van Hove singularities
B. Dietz, T. Klaus, M. Miski-Oglu +3
We study distributions of the ratios of level spacings of a rectangular and an Africa-shaped superconducting microwave resonator containing circular scatterers on a triangular grid…
Quantum and Wave Dynamical Chaos in Superconducting Microwave Billiards
B. Dietz, A. Richter
Experiments with superconducting microwave cavities have been performed in our laboratory for more than two decades. The purpose of the present article is to recapitulate some of t…
Spectral Properties and Dynamical Tunneling in Constant-Width Billiards
B. Dietz, T. Guhr, B. Gutkin +2
We determine with unprecedented accuracy the lowest 900 eigenvalues of two quantum constant-width billiards from resonance spectra measured with flat, superconducting microwave res…
Scattering Experiments with Microwave Billiards at an Exceptional Point under Broken Time Reversal Invariance
S. Bittner, B. Dietz, H. L. Harney +3
Scattering experiments with microwave cavities were performed and the effects of broken time-reversal invariance (TRI), induced by means of a magnetized ferrite placed inside the c…
Exceptional Points in a Microwave Billiard with Time-Reversal Invariance Violation
B. Dietz, H. L. Harney, O. N. Kirillov +3
We report on the experimental study of an exceptional point (EP) in a dissipative microwave billiard with induced time-reversal invariance (T) violation. The associated two-state H…
Experimental test of a trace formula for two-dimensional dielectric resonators
S. Bittner, E. Bogomolny, B. Dietz +4
Resonance spectra of two-dimensional dielectric microwave resonators of circular and square shapes have been measured. The deduced length spectra of periodic orbits were analyzed a…
Cross-Section Fluctuations in Chaotic Scattering
B. Dietz, H. L. Harney, A. Richter +2
For the theoretical prediction of cross-section fluctuations in chaotic scattering, the cross-section autocorrelation function is needed. That function is not known analytically. U…
Friedel Oscillations in Microwave Billiards
A. Baecker, B. Dietz, T. Friedrich +4
Friedel oscillations of electron densities near step edges have an analog in microwave billiards. A random plane wave model, normally only appropriate for the eigenfunctions of a p…
Quantum Chaotic Scattering in Microwave Resonators
B. Dietz, T. Friedrich, H. L. Harney +4
In a frequency range where a microwave resonator simulates a chaotic quantum billiard, we have measured moduli and phases of reflection and transmission amplitudes in the regimes o…
Nonperiodic echoes from quantum mushroom billiard hats
B. Dietz, T. Friedrich, M. Miski-Oglu +3
Nonperiodic tunable quantum echoes have been observed in experiments with an open microwave billiard whose geometry under certain conditions provides Fibonacci like sequences of cl…
Induced Violation of Time-Reversal Invariance in the Regime of Weakly Overlapping Resonances
B. Dietz, T. Friedrich, H. L. Harney +5
We measure the complex scattering amplitudes of a flat microwave cavity (a "chaotic billiard"). Time-reversal T-invariance is partially broken by a magnetized ferrite placed within…
Experimental Test of a Trace Formula for a Chaotic Three Dimensional Microwave Cavity
C. Dembowski, B. Dietz, H. -D. Graef +4
We have measured resonance spectra in a superconducting microwave cavity with the shape of a three-dimensional generalized Bunimovich stadium billiard and analyzed their spectral f…