Effects of non-Hermiticity on Su-Schrieffer-Heeger defect states

• Main Authors: Lang, Li-Jun, Wang, You, Wang, Hailong, Chong, Yi Dong
• 其他作者: School of Physical and Mathematical Sciences
• 格式: Article
• 語言: English
• 出版: 2018
• 主題: Topological Defects; Topological Effects in Photonic Systems
• 在線閱讀: https://hdl.handle.net/10356/89968; http://hdl.handle.net/10220/46428

We study the emergence and disappearance of defect states in the complex Su-Schrieffer-Heeger (cSSH) model, a non-Hermitian one-dimensional lattice model containing gain and loss on alternating sites. Previous studies of this model have focused on the existence of a non-Hermitian defect state that i...