Title: Topological bulk-defect correspondence 

Speaker: 蒋建华 (中国科学技术大学教授） 

Time: Mar. 14, 2024  10:30 AM  

Venue: 中国科学院半导体研究所3号楼320会议室

Abstract: Topological phenomena have been a focus of physics and materials research where prominent effects emerge at systems’ edge boundaries via the celebrated bulk-edge correspondence. Recently, with designed metamaterials, novel topological phenomena have been revealed at defects, unveiling a paradigm of bulk-defect correspondence. In this talk, I show via several examples that defects, with their rich geometry, can induce unique topological effects that have never been seen before. I will also go over briefly other important findings in this direction and give an overview of potential future developments. Studies in this direction open a new research frontier in topological physics and materials science, with cutting-edge physics and unprecedented phenomena as well as potential applications.