3 papers
cond-mat.mes-hall2026
Winding-control mechanism of non-Hermitian systems
Yongxu Fu, Yi Zhang
Non-Hermitian quantum systems exhibit various interesting and inter-connected spectral, topological, and boundary-sensitive features. By introducing conditional boundary conditions…
quant-ph2025
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…
cond-mat.mes-hall2024
Braiding Topology of Non-Hermitian Open-Boundary Bands
Yongxu Fu, Yi Zhang
There has been much recent interest and progress on topological structures of the non-Hermitian Bloch bands. Here, we study the topological structures of non-Bloch bands of non-Her…