3 papers
physics.class-ph2017
Particlelike scattering states in a microwave cavity
Julian Böhm, Andre Brandstötter, Philipp Ambichl +2
We realize scattering states in a lossy and chaotic two-dimensional microwave cavity which follow bundles of classical particle trajectories. To generate such particlelike scatteri…
physics.optics2017
Focusing inside Disordered Media with the Generalized Wigner-Smith Operator
Philipp Ambichl, Andre Brandstötter, Julian Böhm +3
We introduce a wavefront shaping protocol for focusing inside disordered media based on a generalization of the established Wigner-Smith time-delay operator. The key ingredient for…
physics.optics2016
Dynamically encircling exceptional points in a waveguide: asymmetric mode switching from the breakdown of adiabaticity
Jörg Doppler, Alexei A. Mailybaev, Julian Böhm +7
Physical systems with loss or gain feature resonant modes that are decaying or growing exponentially with time. Whenever two such modes coalesce both in their resonant frequency an…