11 citations · 21 across the 8 of their papers we have counts for
8 papers
Scaling behavior of dissipative systems with imaginary gap closing
Jinghui Pi, Xingli Li, Yangqian Yan
Point-gap topology, characterized by spectral winding numbers, is crucial to non-Hermitian topological phases and dramatically alters real-time dynamics. In this paper, we study th…
General theory for geometry-dependent non-Hermitian bands
Chenyang Wang, Jinghui Pi, Qinxin Liu +2
In two- and higher-dimensional non-Hermitian lattices, systems can exhibit geometry-dependent bands, where the spectrum and eigenstates under open boundary conditions depend on the…
Geometric origin of self-intersection points in non-Hermitian energy spectra
Jinghui Pi, Chenyang Wang, Yong-Chun Liu +1
Unlike Hermitian systems, non-Hermitian energy spectra under periodic boundary conditions can form closed loops in the complex energy plane, a phenomenon known as point gap topolog…
Investigation of reentrant localization transition in one-dimensional quasi-periodic lattice with long-range hopping
Pei-Jie Chang, Qi-Bo Zeng, Jinghui Pi +2
Reentrant localization has recently been observed in systems with quasi-periodic nearest-neighbor hopping, where the interplay between dimerized hopping and staggered disorder is i…
Topological phases of extended Su-Schrieffer-Heeger-Hubbard model
Pei-Jie Chang, Jinghui Pi, Muxi Zheng +3
Despite extensive studies on the one-dimensional Su-Schrieffer-Heeger-Hubbard (SSHH) model, the variant incorporating next-nearest neighbour hopping remains largely unexplored. Her…
Imaginary-Stark Skin Effect
Heng Lin, Jinghui Pi, Yunyao Qi +3
A unique phenomenon in non-Hermitian systems is the non-Hermitian skin effect (NHSE), namely the boundary localization of continuous-spectrum eigenstates. However, studies on the N…
Imaginary gap-closed points and dynamics in a class of dissipative systems
Shicheng Ma, Heng Lin, Jinghui Pi
We investigate imaginary gap-closed (IGC) points and their associated dynamics in dissipative systems. In a general non-Hermitian model, we derive the equation governing the IGC po…
Extended imaginary gauge transformation in a general nonreciprocal lattice
Yunyao Qi, Jinghui Pi, Yuquan Wu +3
Imaginary gauge transformation (IGT) provides a clear understanding of the non-Hermitian skin effect by transforming the non-Hermitian Hamiltonians with real spectra into Hermitian…