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Experimental Observation of the Spectral Gap in Microwave n-Disk Systems
S. Barkhofen, T. Weich, A. Potzuweit +3
Symmetry reduced three-disk and five-disk systems are studied in a microwave setup. Using harmonic inversion the distribution of the imaginary parts of the resonances is determined…
Topological transition of Dirac points in a microwave experiment
Matthieu Bellec, Ulrich Kuhl, Gilles Montambaux +1
By means of a microwave tight-binding analogue experiment of a graphene-like lattice, we observe a topological transition between a phase with a point-like band gap characteristic…
Weyl asymptotics: From closed to open systems
A. Potzuweit, T. Weich, S. Barkhofen +3
We present microwave experiments on the symmetry reduced 5-disk billiard studying the transition from a closed to an open system. The measured microwave reflection signal is analyz…
Disordered graphene and boron nitride in a microwave tight-binding analog
S. Barkhofen, M. Bellec, U. Kuhl +1
Experiments on hexagonal graphene-like structures using microwave measuring techniques are presented. The lowest transverse-electric resonance of coupled dielectric disks sandwiche…
Surface scattering and band gaps in rough waveguides and nanowires
O. Dietz, H. -J. Stöckmann, U. Kuhl +5
The boundaries of waveguides and nanowires have drastic influence on their coherent scattering properties. Designing the boundary profile is thus a promising approach for transmiss…