71 citations · 275 across the 13 of their papers we have counts for
3 papers · 1 filter
Network model for higher-order topological phases
Hui Liu, Selma Franca, Ali G. Moghaddam +2
We introduce a two-dimensional network model that realizes a higher-order topological phase (HOTP). We find that in the HOTP the bulk and boundaries of the system are gapped, and a…
Anomalous levitation and annihilation in Floquet topological insulators
Hui Liu, Ion Cosma Fulga, Janos K. Asboth
Anderson localization in two-dimensional topological insulators takes place via the so-called levitation and pair annihilation process. As disorder is increased, extended bulk stat…
Effective dynamics for a spin-1/2 particle constrained to a space curve in an electric and magnetic field
Guo-Hua Liang, Yong-Long Wang, Meng-Yun Lai +3
We consider the dynamics of a spin-1/2 particle constrained to move in an arbitrary space curve with an external electric and magnetic field applied. With the aid of gauge theory,…