Mixed higher-order topology: boundary non-Hermitian skin effect induced by a Floquet bulk

We show that anomalous Floquet topological insulators generate intrinsic, non-Hermitian topology on their boundary. As a consequence, removing a boundary hopping from the time-evolution operator stops the propagation of chiral edge modes, leading to a non-Hermitian skin effect. This does not occur i...

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Veröffentlicht in:	arXiv.org 2023-07
Hauptverfasser:	Liu, Hui, Ion Cosma Fulga
Format:	Artikel
Sprache:	eng
Schlagworte:	Invariants Perturbation Physics - Mesoscale and Nanoscale Physics Propagation modes Skin effect Topological insulators Topology
Online-Zugang:	Volltext
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