Corpus ID: 237562859

Anomalous Transport Induced by Non-Hermitian Anomalous Berry Connection in Non-Hermitian Systems

  title={Anomalous Transport Induced by Non-Hermitian Anomalous Berry Connection in Non-Hermitian Systems},
  author={Jiong Wang and Yu-Liang Tao and Yong Xu},
  • Jiong Wang, Yu-Liang Tao, Yong Xu
  • Published 16 September 2021
  • Physics
Non-Hermitian materials can not only exhibit exotic energy band structures but also an anomalous velocity induced by non-Hermitian anomalous Berry connection as predicted by the semiclassical equations of motion for Bloch electrons. However, it is not clear how the modified semiclassical dynamics modifies transport phenomena. Here, we theoretically demonstrate the emergence of anomalous oscillations driven by either an external dc or ac electric field arising from non-Hermitian anomalous Berry… 

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