论文标题
拓扑状态的异常搬迁
Anomalous relocation of topological states
论文作者
论文摘要
我表明，在一维拓扑系统中，在某些程度的非热性中，单个嵌入式的非热缺陷可以从边缘删除拓扑模式，并将其在放置在非弱点缺陷的同一地点的晶格内恢复。我将这种出乎意料的现象与晶格不同位点的波匹配条件和连续性联系起来。这些发现为控制拓扑状态的位置铺平了道路。
I show that a single embedded non-Hermitian defect in a one-dimensional topological system at certain degrees of non-Hermiticity can remove the topological mode from the edge and restore it inside the lattice at the same place where the non-Hermitian defect is placed. I relate this unexpected phenomenon to the wave matching condition and continuity of the wave function at different sites in the lattice. These findings pave the way for controlling the position of topological states at will.
