报告题目(Title):非厄米系统中的拓扑态 Topological states in non-Hermitian systems
报 告 人(Speaker):陈澍 研究员(中国科学院物理研究所)
报告时间(Time): 2019年7月18日(周四)15:00
报告地点(Place):校本部G309
邀请人(inviter):姜颖
摘要(Abstract):结合我们最近的研究工作,我将介绍一下非厄米系统中的拓扑态的一些奇异性质, 包括体边对应破缺, 皮肤态和Anderson局域态的竞争,以及拓扑不变量的几何解释. 我也将简要介绍一下非厄米系统中的拓扑分类问题.
Based on our recent work, I will introduce some exotic properties of topological states in non-Hermitian systems, including the breakdown of bulk-edge correspondence, interplay of skin effects and Anderson localization, as well as the geometrical interpretation of topological invariants. Meanwhile, I will also discuss the problem of topological classification in non-Hermitian systems.