Spinful topological phases in acoustic crystals with projective PT symmetry

• Main Authors: Meng, Yan, Lin, Shuxin, Shi, Bin-Jie, Wei, Bin, Yang, Linyun, Yan, Bei, Zhu, Zhenxiao, Xi, Xiang, Wang, Yin, Ge, Yong, Yuan, Shou-Qi, Chen, Jingming, Liu, Gui-Geng, Sun, Hong-Xiang, Chen, Hongsheng, Yang, Yihao, Gao, Zhen
• Other Authors: School of Physical and Mathematical Sciences
• Format: Article
• Language: English
• Published: 2023
• Subjects: Science::Physics; Acoustic Crystal; PT symmetries
• Online Access: https://hdl.handle.net/10356/169405
• Institution: Nanyang Technological University

For the classification of topological phases of matter, an important consideration is whether a system is spinless or spinful, as these two classes have distinct symmetry algebra that gives rise to fundamentally different topological phases. However, only recently has it been realized theoretically...