1 citations · 1 across the 3 of their papers we have counts for
3 papers
cond-mat.mtrl-sci2026
The Locality Cost of Fully Flat Hopf Insulators
Feng Liu, Qifeng Liang, Wenlong Gao
Hopf topology permits a strictly finite-range Hamiltonian with one exactly flat topological band. We prove, however, that extending flatness to the complete two-band spectrum neces…
cond-mat.supr-con2024★ 1 cited
Band-Structure-Independent Topology from Nonsymmorphic Wannier Complexes
Qinghua He, Jie Zhang, Shengdan Tao +4
Nonsymmorphic symmetries can enforce band connectivity that obstructs a single-band Wannier description. We show that a fractional translation connecting distinct hig…
cond-mat.supr-con2024
Higher-order topology in Fibonacci quasicrystals
Chaozhi Ouyang, Qinghua He, Dong-Hui Xu +1
In crystalline systems, higher-order topology, characterized by topological states of codimension greater than one, typically arises from the mismatch between Wannier centers and a…