Toward Non-Hermitian Many-Body Systems: Schemes and Examples

报告题目:Toward Non-Hermitian Many-Body Systems: Schemes and Examples

报告人:易为 教授(中国科学技术大学)

报告时间:2022年8月29号(周一)下午4:00

报告地点:腾讯会议(会议号:305-137-230

报告摘要:  

Non-Hermitian physics has stimulated enormous interest of late. While most existing studies focus on single-body phenomena, a looming question for theorists and experimentalists alike is the relevance of non-Hermitian many-body Hamiltonians. How to relate the exotic many-body features thereof to quantum open systems? And with what physical system? In this talk, I will address the issue from two aspects. First, I will review several theoretical frameworks in which non-Hermitian descriptions naturally emerge in quantum many-body environments. Second, I will discuss recent progresses in cold atoms where schemes for observing the non-Hermitian skin effects have been proposed and realized. Whereas the non-Hermitian skin effect is a single-body phenomenon, its implementation in a quantum many-body setting is an encouraging first step toward non-Hermitian many-body systems.

报告人简介:

易为,中科大教授、博导,国家优秀青年基金获得者。2000年本科毕业于中国科大物理系,2007年在美国密歇根大学物理系获物理学博士学位。2007年至2010年在奥地利因斯布鲁克大学从事博士后研究,于2010年回到中国科大任教。主要从事基于超冷原子气体和其它相关物理体系量子模拟方面的理论研究。