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20112022
most citedGeometrical meaning of winding number and its characterization of topological phases in one-dimensional chiral non-Hermitian systems

376 citations · 1.1k across the 11 of their papers we have counts for

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quant-ph2022★ 11 cited

Nonlinear perturbation of a high-order exceptional point: skin discrete breathers and the hierarchical power-law scaling

Hui Jiang, Enhong Cheng, Ziyu Zhou +1

We study the nonlinear perturbation of a high-order exceptional point (EP) of the order equal to the system site number in a Hatano-Nelson model with unidirectional hopping and…