The bulk-dislocation correspondence for weak topological insulators on screw-dislocated lattices
Mathematical Physics
2021-09-01 v1 K-Theory and Homology
math.MP
Abstract
A weak topological insulator in dimension is known to have a topologically protected gapless mode along the screw dislocation. In this paper we formulate and prove this fact with the language of C*-algebra K-theory. The proof is based on the coarse index theory of the helical surface.
Keywords
Cite
@article{arxiv.2103.13277,
title = {The bulk-dislocation correspondence for weak topological insulators on screw-dislocated lattices},
author = {Yosuke Kubota},
journal= {arXiv preprint arXiv:2103.13277},
year = {2021}
}
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17 pages