The bulk-edge correspondence in three simple cases

被引:15
|
作者
Shapiro, Jacob [1 ]
机构
[1] Swiss Fed Inst Technol, Theoret Phys, CH-8093 Zurich, Switzerland
关键词
Topological insulators; translation invariance; time-reversal invariance; QUANTIZATION; EQUALITY;
D O I
10.1142/S0129055X20300034
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We present examples in three symmetry classes of topological insulators in one or two dimensions where the proof of the bulk-edge correspondence is particularly simple. This serves to illustrate the mechanism behind the bulk-edge principle without the overhead of the more general proofs which are available. We also give a new formula for the Z(2)-index of our time-reversal invariant systems inspired by Moore and Balents.
引用
收藏
页数:37
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