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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…