论文标题
拓扑绝缘子的绝对连续边缘光谱具有奇怪的时间反转对称性
Absolutely continuous edge spectrum of topological insulators with an odd time-reversal symmetry
论文作者
论文摘要
我们表明,受奇数时间反转对称性保护的非平凡二维拓扑绝缘子具有绝对连续的边缘光谱。该证明采用了沃尔德分解的时间反转对称版本,从而挑出了拓扑绝缘体的弹道边缘模式。
We show that non-trivial two-dimensional topological insulators protected by an odd time-reversal symmetry have absolutely continuous edge spectrum. The proof employs a time-reversal symmetric version of the Wold decomposition that singles out ballistic edge modes of the topological insulator.