3 papers
cond-mat.str-el2026
Nonlinear topological laser based on multipole insulators
Zi-Yuan Li, Zi-Xiang Hu, Qi Li
Two-dimensional higher-order topological insulators (HOTIs), characterized by distinctive one-dimensional edge states and zero-dimensional corner states, provide an ideal platform…
cond-mat.dis-nn2026
Disorder effects in two-dimensional flat-band system with next-nearest-neighbor hopping
Yue Heng Liu, Zi-Xiang Hu, Qi Li
For two-dimensional Lieb lattice, while intrinsic spin-orbit coupling is responsible for opening the gap that exhibits the quantum spin Hall effect, topological phase transitions a…
cond-mat.str-el2025
The geometric impact of the quantum Hall interface on a cone
Jie Li, Qi Li, Zi-Xiang Hu
Recently, quantum Hall interface has become a popular subject of research; distinct from that of the quantum Hall edge, which is constrained by external background confinement, the…