5 papers
Waveguiding in two-dimensional Floquet non-Abelian topological insulators
Yujie Zhou, Changsen Li, Xiumei Wang +1
Topological phases characterized by non-Abelian charges have garnered increasing attention recently. Although Floquet (periodic-driving) higher-order topological phases have been e…
Three-period evolution in a photonic Floquet extended Su-Schrieffer-Heeger waveguide array
Changsen Li, Yujie Zhou, Xiumei Wang +1
Periodic driving can induce the emergence of topological pi modes, and their superposition with zero modes leads to two-period dynamics. Introducing long-range couplings enables th…
Amortized Clustering Assistant Classification of Anomalous Hybrid Floquet Modes in a Periodically Driven non-Hermitian Lattice
Yifei Xia, Xiumei Wang, Yali Li +1
The interplay between Floquet periodically driving and non-Hermiticity could bring about intriguing novel phenomena with anomalous Floquet topological phases of a finite-size, tigh…
Low-Energy Boundary-State Emergence and Delocalization in Finite-sized Mosaic Wannier-Stark Lattices
Yi Kang, Zhenjia Yu, Xiumei Wang +1
The mosaic Wannier Stark lattice has gained increasing prominence as a disorder free system exhibiting unconventional localization behavior induced by spatially periodic Stark pote…
Exact solution of the relationship between the eigenvalue discreteness and the behavior of eigenstates in Su-Schrieffer-Heeger lattices
Huitong Wei, Xiumei Wang, Xingping Zhou
Eigenstate localization and bulk-boundary correspondence are fundamental phenomena in one-dimensional (1D) Su-Schrieffer-Heeger (SSH) lattices. The eigenvalues discreteness and the…