Spontaneous topological pumping in non-Hermitian systems
classification
❄️ cond-mat.mes-hall
cond-mat.str-elphysics.opticsquant-ph
keywords
systemstopologicaledgenon-hermitianpumpingstateconversioncontrast
read the original abstract
We introduce modulational instability in non-Hermitian systems to study state conversion of topological edge states. We show that state conversion in non-Hermitian systems leads to topological pumping, which is a way of transferring topological edge state from one edge to the opposite edge. In contrast to Hermitian systems, topological pumping can occur spontaneously in non-Hermitian systems.
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