Topological Chern vectors in three-dimensional photonic crystals

• Main Authors: Liu, Gui-Geng, Gao, Zhen, Wang, Qiang, Xi, Xiang, Hu, Yuan-Hang, Wang, Maoren, Liu, Chengqi, Lin, Xiao, Deng, Longjiang, Yang, Shengyuan A., Zhou, Peiheng, Yang, Yihao, Chong, Yidong, Zhang, Baile
• Other Authors: School of Physical and Mathematical Sciences
• Format: Article
• Language: English
• Published: 2023
• Subjects: Science::Physics; Topological Insulators; Photonic Devices
• Online Access: https://hdl.handle.net/10356/164456
• Institution: Nanyang Technological University

The paradigmatic example of a topological phase of matter, the two-dimensional Chern insulator1-5, is characterized by a topological invariant consisting of a single integer, the scalar Chern number. Extending the Chern insulator phase from two to three dimensions requires generalization of the Cher...