论文标题
具有广义性手性对称性的散装对应关系
Bulk-edge correspondence with generalized chiral symmetry
论文作者
论文摘要
拓扑阶段中的散装对应关系扩展到具有广义性手性对称性的系统，其中传统的手性对称性被损坏。在这样的系统中，我们发现边缘状态在存在对称性的情况下被质量破裂而表现出非常规的行为，在变形的su-schrieffer-heeger模型的情况下，对质量进行了对称性破裂。边缘状态的定位长度在某个临界质量上分歧，边缘状态接触到散装带。边缘状态是由一个假想波向量在接触能量上变为真实的。
The bulk-edge correspondence in topological phases is extended to systems with the generalized chiral symmetry, where the conventional chiral symmetry is broken. In such systems, we find that the edge state exhibits an unconventional behavior in the presence of the symmetry breaking by the mass, which is explored explicitly in the case of a deformed Su-Schrieffer-Heeger model. The localization length of the edge states diverges at a certain critical mass, where the edge state touches to the bulk band. The edge state is specified by an imaginary wave vector that becomes real at the touching energy.
