Publications (33)
Detection of weak signals under arbitrary noise distributions
J. Zschetzsche, M. Weimar, O. Lang +7
Detecting weak signals buried in complex, non-Gaussian noise is a fundamental challenge in science and engineering, with applications ranging from radar systems and communications…
Roadmap on structured waves
K. Y. Bliokh, E. Karimi, M. J. Padgett +47
Structured waves are ubiquitous for all areas of wave physics, both classical and quantum, where the wavefields are inhomogeneous and cannot be approximated by a single plane wave.…
Van der Waals chain: a simple model for Casimir forces in dielectrics
H. Horner, L. M. Rachbauer, S. Rotter +1
The Casimir force between dielectric bodies is well-understood, but not the Casimir force inside a dielectric, in particular its renormalization. We develop and analyse a simple mo…
Pump-induced Exceptional Points in Lasers
M. Liertzer, Li Ge, A. Cerjan +3
We demonstrate that the above-threshold behavior of a laser can be strongly affected by exceptional points which are induced by pumping the laser nonuniformly. At these singulariti…
Bound states in Andreev billiards with soft walls
F. Libisch, S. Rotter, J. Burgdoerfer +2
The energy spectrum and the eigenstates of a rectangular quantum dot containing soft potential walls in contact with a superconductor are calculated by solving the Bogoliubov-de Ge…
Nano-wires with surface disorder: Giant localization lengths and dynamical tunneling in the presence of directed chaos
J. Feist, A. Bäcker, R. Ketzmerick +2
We investigate electron quantum transport through nano-wires with one-sided surface roughness in the presence of a perpendicular magnetic field. Exponentially diverging localizatio…