642 citations · 1.9k across the 21 of their papers we have counts for
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Scattering-free pulse propagation through invisible non-Hermitian disorder
Andre Brandstötter, Konstantinos G. Makris, Stefan Rotter
We demonstrate a new design principle for unidirectionally invisible non-Hermitian structures that are not only invisible for one specific wavelength but rather for a broad frequen…
Echo trains in pulsed electron spin resonance of a strongly coupled spin ensemble
Stefan Weichselbaumer, Matthias Zens, Christoph W. Zollitsch +4
We report on a novel dynamical phenomenon in electron spin resonance experiments of phosphorus donors. When strongly coupling the paramagnetic ensemble to a superconducting lumped…
Perfectly absorbing exceptional points and chiral absorbers
William R. Sweeney, Chia Wei Hsu, Stefan Rotter +1
We identify a new kind of physically realizable exceptional point (EP) corresponding to degenerate coherent perfect absorption, in which two purely incoming solutions of the wave o…
Variational Renormalization Group for Dissipative Spin-Cavity Systems: Periodic Pulses of Nonclassical Photons from Mesoscopic Spin Ensembles
Himadri Shekhar Dhar, Matthias Zens, Dmitry O. Krimer +1
Mesoscopic spin ensembles coupled to a cavity offer the exciting prospect of observing complex nonclassical phenomena that pool the microscopic features from a few spins with those…
Constant-pressure sound waves in non-Hermitian disordered media
Etienne Rivet, Andre Brandstötter, Konstantinos G. Makris +3
When waves impinge on a disordered material they are back-scattered and form a highly complex interference pattern. Suppressing any such distortions in the free propagation of a wa…