4 papers · 1 filter
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…
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…