5 papers
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…
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…
Developments in the applications of density functional theory to fractional quantum Hall systems
Yi Yang, Yayun Hu, Zi-Xiang Hu
The fractional quantum Hall effect remains a captivating area in condensed matter physics, characterized by strongly correlated topological order, which manifests as fractionalized…
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…
Simulating Composite Fermion Excitons by Density Functional Theory and Monte Carlo on a Disk
Yi Yang, Songyang Pu, Yayun Hu +1
The Kohn-Sham density functional method for the fractional quantum Hall (FQH) effect has recently been developed by mapping the strongly interacting electrons into an auxiliary sys…