114 citations · 289 across the 8 of their papers we have counts for
8 papers
Krylov complexity, mode-resolved complexity and entanglement entropy across phase transitions in the non-Hermitian extended Su-Schrieffer-Heeger model
Ling-Feng Zhang, Wing Chi Yu
We investigate phase transitions in the extended Su-Schrieffer-Heeger (SSH) model with next-nearest-neighbor hoppings and an imaginary staggered chemical potential. In the presence…
Probing phase transitions in non-Hermitian systems with quantum entanglement
Ling-Feng Zhang, Wing Chi Yu
We study the quantum entanglement and quantum phase transition of the non-Hermitian anisotropic spin- XY model and XXZ model with the staggered imaginary field by anal…
Efficient sorting of orbital-angular-momentum states with large topological charges and their unknown superpositions via machine learning
Ling-Feng Zhang, Ya-Yi Lin, Zhen-Yue She +6
Light beams carrying orbital-angular-momentum (OAM) play an important role in optical manipulation and communication owing to their unbounded state space. However, it is still chal…
Connecting Topological Anderson and Mott Insulators in Disordered Interacting Fermionic Systems
Guo-Qing Zhang, Ling-Zhi Tang, Ling-Feng Zhang +2
The topological Anderson and Mott insulators are two phases that have so far been separately and widely explored beyond topological band insulators. Here we combine the two seeming…
Localization and topological transitions in non-Hermitian quasiperiodic lattices
Ling-Zhi Tang, Guo-Qing Zhang, Ling-Feng Zhang +1
We investigate the localization and topological transitions in a one-dimensional (interacting) non-Hermitian quasiperiodic lattice, which is described by a generalized Aubry-André-…
Machine learning topological invariants of non-Hermitian systems
Ling-Feng Zhang, Ling-Zhi Tang, Zhi-Hao Huang +3
The study of topological properties by machine learning approaches has attracted considerable interest recently. Here we propose machine learning the topological invariants that ar…
Topological Anderson insulators in two-dimensional non-Hermitian disordered systems
Ling-Zhi Tang, Ling-Feng Zhang, Guo-Qing Zhang +1
The interplay among topology, disorder, and non-Hermiticity can induce some exotic topological and localization phenomena. Here we investigate this interplay in a two-dimensional n…
Unconventional vortex states in nanoscale superconductors due to shape-induced resonances in the inhomogeneous Cooper-pair condensate
L. -F. Zhang, L. Covaci, M. V. Milošević +2
Vortex matter in mesoscopic superconductors is known to be strongly affected by the geometry of the sample. Here we show that in nanoscale superconductors with coherence length com…