2 papers
cond-mat.mtrl-sci2020
Discovering topological surface states of Dirac points
Hengbin Cheng, Yixin Sha, Rongjuan Liu +2
Dirac materials, unlike the Weyl materials, have not been found in experiments to support intrinsic topological surface states, as the surface arcs in existing systems are unstable…
cond-mat.str-el2019
Crystallographic splitting theorem for band representations and fragile topological photonic crystals
A. Alexandradinata, J. Höller, Chong Wang +2
The fundamental building blocks in band theory are band representations (BRs): bands whose infinitely-numbered Wannier functions are generated (by action of a space group) from a f…