4 papers
Coupled-wire construction of non-Abelian higher-order topological phases
Jiaxin Pan, Longwen Zhou
Non-Abelian topological charges (NATCs), characterized by their noncommutative algebra, offer a framework for describing multigap topological phases beyond conventional Abelian inv…
Floquet non-Abelian topological charges and edge states
Jiaxin Pan, Longwen Zhou
Non-Abelian topological insulators are characterized by matrix-valued, non-commuting topological charges with regard to more than one energy gap. Their descriptions go beyond the c…
Floquet Möbius topological insulators
Longwen Zhou, Fan Zhang, Jiaxin Pan
Möbius topological insulators have dispersive edge bands with Möbius twists in momentum space, which are protected by the combination of chiral and -projective translational…
Gapless higher-order topology and corner states in Floquet systems
Longwen Zhou, Rongtao Wang, Jiaxin Pan
Higher-order topological phases (HOTPs) possess localized and symmetry-protected eigenmodes at corners and along hinges in two and three dimensional lattices. The numbers of these…