报告题目：Dynamical non-Abelian gauge fields: toward the realization of topological superfluids

报  告 人：刘雄军 教授（国家杰青），北京大学

研究方向：拓扑超导、人工规范场、量子热化和多体局域化

报告时间：2023年9月29日（周五）上午10：00

报告地点：量子楼410

报告摘要：

The ultracold quantum gaswithsynthetic gauge fields has generated widespread research interest for it provides promising platforms to investigate various topological quantum matter, with milestone progresses having been made in experiment. Nevertheless, these progresses have been restricted in the non-interacting or weakly interacting systems with the static spin-orbit couplings which are characterized by static synthetic gauge potentials. In this talk, I will present how to extend in the experimentally feasible way the spin-orbit coupled ultracold gas to the strongly correlated regime, with which the dynamical non-Abelian gauge fields, characterizing a dynamical 2D spin-orbit coupling, are realized. The novel correlated topological physics are predicted. In particular, the highly-sought-after non-Abelian topological superfluid can be achieved with a high feasibility. The analytic and numerical results are presented and show the existence of topological superfluid phase in the realistic parameter regimes. The future important issues will also be discussed.

报告人简介：

刘雄军，教授，2011年博士毕业于德州A&M大学物理系，之后分别在马里兰大学凝聚态物理中心和联合量子研究所，香港科大高等研究院及麻省理工学院物理系从事博士后研究。他2014年9月加入北大量子材料科学中心任研究员，入选海外高层次人才计划。2018年7月获长聘职位，同年8月获得国家杰青资助，2019年1月晋升正教授、北大博雅特聘教授。刘雄军长期在拓扑超导等拓扑物相和超冷原子量子模拟领域开展研究。获得2019年亚太物理学会和亚太理论物理中心杨振宁奖，2023年中国物理学会周培源物理奖。他目前的主要研究兴趣集中在拓扑超导、人工规范场、量子热化和多体局域化、非平衡量子多体系统，强关联拓扑物相等方面。