中国科学技术大学

报告人简介：

陈帅，中国科学技术大学／中国科学院量子信息与量子技术创新研究院教授。主要从事超冷原子量子模拟、量子信息和量子精密测量方面的研究，在Science (1篇)、Nature (1篇)、Nature子刊(4篇)、Physical Review Letters (8篇)等国际权威学术期刊上发表30余篇研究论文。近年来在超冷原子量子模拟-人工合成自旋轨道耦合方面做出一系列重要的工作。获邀在国际会议和国外大学作报告30余次，包括2014年在第24届国际原子物理学大会（ICAP2014）做邀请报告，2015年在BEC conference上做邀请报告，2017年受邀赴哈佛-MIT冷原子联合中心做报告。目前在科技部重点专项超冷原子的量子模拟项目中担任课题负责人。

报告摘要：

Spin-Orbit (SO) coupling, as a fundamental quantum effect, is an essential ingredient in many topological phases of quantum matters, like topological insulator and topological semiconductor. To synthesize 2-dimensional (2D) SO coupling with ultracold quantum gases is one of the keys in the field of quantum simulation for study topological quantum matters. We report here the realization of a robust and highly controllable 2D SO coupling with topological non-trivial band structure. By applying a retro-reflected 2D optical lattice, the synthesized 2D SO coupling has precise inversion and C4 symmetries. The non-trivial band topology of the 2D SO coupling are precisely addressed by both equilibrium and non-equilibrium processes. Furthermore, the 2+1D dynamical Hopf insulator is synthesized from the post-quench dynamical process. Our studies open the new avenue in quantum simulation to explore exotic quantum many-body effects and non-equilibrium dynamics with novel topology.

邀 请 人：刘伍明（电话：8264 9249）

联 系 人：李园园（电话：8264 9364）