Takagi topological insulator with odd $\mathcal P\mathcal T$ pairs of corner states

no code implementations • 17 Dec 2020 • Jia-Xiao Dai, Kai Wang, Shengyuan A. Yang, Y. X. Zhao

Particularly, the global Takagi's factorization can (cannot) be done on a $3$D ($2$D) sphere.

Mesoscale and Nanoscale Physics