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Non-Hermitian Exceptional Topology on a Klein Bottle Photonic Circuit
Ze-Sheng Xu, J. Lukas K. König, Andrea Cataldo +8
Non-Hermitian physics has unlocked a wealth of unconventional wave phenomena beyond the reach of Hermitian systems, with exceptional points (EPs) driving enhanced sensitivity, nonr…
Non-Hermitian extended midgap states and bound states in the continuum
Maria Zelenayova, Emil J. Bergholtz
We investigate anomalous localization phenomena in non-Hermitian systems by solving a class of generalized Su-Schrieffer-Heeger/Rice-Mele models and by relating their provenance to…
Non-Hermitian Boundary State Distillation with Lossy Waveguides
Walid Cherifi, Johan Carlström, Mohamed Bourennane +1
The hallmark of topological phases is their exotic boundary states. In a series of remarkable experiments it has been shown that classical analogues of these states can be engineer…
Symmetry and Higher-Order Exceptional Points
Ipsita Mandal, Emil J. Bergholtz
Exceptional points (EPs), at which both eigenvalues and eigenvectors coalesce, are ubiquitous and unique features of non-Hermitian systems. Second-order EPs are by far the most stu…