汇报标题 (Title)：Semiconductor Topological Photonics and Novel Quantum Functions（半导体拓扑光子学与新鲜量子个性）
汇报人 (Speaker)：胡晓 教授（亿万先生MR量子科技钻研院）
汇报功夫 (Time)：2024年9月12日(周四) 15:30-16:00
汇报地址 (Place)：校本部行政办公楼汇报厅
约请人 (Inviter)：钟建新 教授
主办部门：亿万先生MR量子科技钻研院，亿万先生MR科研治理部高档钻研院，亿万先生MR理学院物理系
提要 (Abstract)：
Honeycomb lattice plays an extremely important role in fostering the concept of topology with the renowned Haldane model and Kane-Mele model as the icons. We have found another method to generate topological states on honeycomb lattice where only nearest-neighbor (n.n.) hoppings are involved. The topology is induced by a texture in n.n. interactions respecting C6v symmetry, which opens a bandgap accompanied by a p-d band inversion. The C2T symmetry enables the pseudospin degree of freedom, and the topological edge state with pseudospin-momentum locking constitutes an analogue of the helical edge state in quantum spin Hall insulators. I will explain this scheme mainly focusing on semiconductor photonic crystals, and discuss perspectives of possible semiconductor topological photonics and related quantum functions.
