4 citations · 6 across the 4 of their papers we have counts for
4 papers
A discrete Stiefel-Whitney invariant with twofold rotation symmetry
Ken Shiozaki
We review Stiefel--Whitney invariants and give a discrete formulation of an additional invariant for two-dimensional spinful insulators with twofold rotation and tim…
Fermi-surface diagnosis for topological superconductivity with -wave-like pairing symmetries
Zhongyi Zhang, Ken Shiozaki, Chen Fang +1
Theoretical prediction of topological superconductivity is key to their discovery. Recently, it is proved that in 199 out of 230 space groups, topological superconductivity coexist…
General corner charge formulas in various tetrahedral and cubic space groups
Hidetoshi Wada, Katsuaki Naito, Seishiro Ono +2
In some insulators, corner charges are fractionally quantized, due to the topological invariant called a filling anomaly. The previous theories of fractional corner charges have be…
Towards complete characterization of topological insulators and superconductors: A systematic construction of topological invariants based on Atiyah-Hirzebruch spectral sequence
Seishiro Ono, Ken Shiozaki
The past decade has witnessed significant progress in topological materials investigation. Symmetry-indicator theory and topological quantum chemistry provide an efficient scheme t…