论文标题
在现场障碍存在下，在Su-Schrieffer-Heeger模型中手性的持久性
Persistence of chirality in the Su-Schrieffer-Heeger model in the presence of on-site disorder
论文作者
论文摘要
我们考虑了Su-Schrieffer-Heeger模型中现场和跳跃障碍对零模式的影响。在没有障碍的情况下，域壁会产生两个手性分数化结合状态，一个在边缘，一个与域壁结合。与跳跃障碍相比，现场障碍打破了手性对称性。通过使用极化，我们发现现场疾病对弱和中度疾病的结合状态的手性质几乎没有影响。我们探索了这些结合状态对于强障碍，对比的现场和跳跃障碍的行为，并将我们的结果与结合状态的本地化特性以及最近的实验联系起来。
We consider the effects of on-site and hopping disorder on zero modes in the Su-Schrieffer-Heeger model. In the absence of disorder a domain wall gives rise to two chiral fractionalized bound states, one at the edge and one bound to the domain wall. On-site disorder breaks the chiral symmetry, in contrast to hopping disorder. By using the polarization we find that on-site disorder has little effect on the chiral nature of the bound states for weak to moderate disorder. We explore the behaviour of these bound states for strong disorder, contrasting on-site and hopping disorder and connect our results to the localization properties of the bound states and to recent experiments.
