Abstract
We show increasing the non-Hermiticity in PT-symmetric Lieb lattices results in generating a robust entire flat band at the exceptional point. The obtained flat band is embedded in between dispersive bands and can be considered as BIC [1].
© 2018 The Author(s)
PDF ArticleMore Like This
Hamidreza Ramezani
FTh1A.1 Frontiers in Optics (FiO) 2017
Shiqi Xia, Ajith Ramachandran, Shiqiang Xia, Denghui Li, Xiuying Liu, Liqin Tang, Daohong Song, Sergej Flach, and Zhigang Chen
FM1E.7 CLEO: QELS_Fundamental Science (CLEO:FS) 2018
Shiqiang Xia, Yi Hu, Daohong Song, Yuanyuan Zong, Liqin Tang, and Zhigang Chen
FTh1A.2 CLEO: QELS_Fundamental Science (CLEO:FS) 2016