论文标题
来自局部嵌入的PT对称缺陷的稳健局部零能量模式
Robust localized zero-energy modes from locally embedded PT-symmetric defects
论文作者
论文摘要
我们证明了通过插入具有局部增益和损失的PT对称缺陷来创建稳健的局部零能量状态，这些状态被诱导到拓扑琐碎的系统中。当减肥对比超过阈值时，由缺陷引起的一对稳健的局部状态会变成零能量模式，在该阈值中，缺陷状态遇到特殊点。我们的方法可用于在系统的任何部分中获得强大的激光或完美吸收模式。
We demonstrate the creation of robust localized zero-energy states that are induced into topologically trivial systems by insertion of a PT-symmetric defect with local gain and loss. A pair of robust localized states induced by the defect turns into zero-energy modes when the gain-loss contrast exceeds a threshold, at which the defect states encounter an exceptional point. Our approach can be used to obtain robust lasing or perfectly absorbing modes in any part of the system.
