Intrinsic in-plane nodal chain and generalized quaternion charge protected nodal link in photonics

Abstract Nodal lines are degeneracies formed by crossing bands in three-dimensional momentum space. Interestingly, these degenerate lines can chain together via touching points and manifest as nodal chains. These nodal chains are usually embedded in two orthogonal planes and protected by the corresp...

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Bibliographic Details
Main Authors: Dongyang Wang, Biao Yang, Qinghua Guo, Ruo-Yang Zhang, Lingbo Xia, Xiaoqiang Su, Wen-Jie Chen, Jiaguang Han, Shuang Zhang, C. T. Chan
Format: Article
Language:English
Published: Nature Publishing Group 2021-04-01
Series:Light: Science & Applications
Online Access:https://doi.org/10.1038/s41377-021-00523-8