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Competition of non-Hermitian skin effect and topological localization of corner states observed in circuits
Exploring topological phases in non-Hermitian systems has attracted significant recent attention. One intriguing question is how topological edge states compete with the non-Hermitian skin effect. Here we report the experimental observation of corner states in a two-dimensional nonreciprocal rhombus honeycomb electric circuit. We construct nonreciprocal and non-Hermitian circuits by introducing …