2 papers
quant-ph2024
Non-Hermitian Delocalization Induced by Residue Imaginary Velocity
Shi-Xin Hu, Yong-Xu Fu, Yi Zhang
The dichotomy of localization versus delocalization is a historic topic central to quantum and condensed matter physics. We discover a new delocalization mechanism attributed to a…
quant-ph2023
Nontrivial worldline winding in non-Hermitian quantum systems
Shi-Xin Hu, Yongxu Fu, Yi Zhang
Amid the growing interest in non-Hermitian quantum systems, non-interacting models have received the most attention. Here, through the stochastic series expansion quantum Monte Car…