Reciprocal skin effect and its realization in a topolectrical circuit

  title={Reciprocal skin effect and its realization in a topolectrical circuit},
  author={Tobias Hofmann and Tobias Helbig and Frank Schindler and Nora Salgo and Marta Brzezińska and Martin Greiter and Tobias Kie{\ss}ling and David Wolf and Achim Vollhardt and Anton Kaba{\vs}i and Ching Hua Lee and Ante Bilu{\vs}i{\'c} and Ronny Thomale and Titus Neupert},
  journal={arXiv: Mesoscale and Nanoscale Physics},
A system is non-Hermitian when it exchanges energy with its environment and non-reciprocal when it behaves differently upon the interchange of input and response. Within the field of metamaterial research on synthetic topological matter, the skin effect describes the conspiracy of non-Hermiticity and non-reciprocity to yield extensive anomalous localization of all eigenmodes in a (quasi) one-dimensional geometry. Here, we introduce the reciprocal skin effect, which occurs in non-Hermitian but… 

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