报告题目：Symmetry resolved entanglement in and out of equilibrium

报告人：陈辉煌 博士（江西师范大学）

报告时间：2022年10月27日（周四）下午15:00-16:00

报告地点：在线报告（腾讯会议ID：442 4477 5872）

报告摘要：

In the past two decades, the study of entanglement measures in low dimensional quantum field theory is a rather active field of research. Many theoretical results in field theory, along with numerical and analytical work in integrable spin chain models revealed entanglement display universal behavior at conformal critical point. A recent development in this field is the introduction of a concept termed symmetry resolved entanglement in systems possessing internal symmetry. I will briefly discuss how to compute the symmetry resolved relative entropies in free fermion conformal field theory. I will also discuss the symmetry resolution of entanglement negativity i.e. the charge imbalance resolved negativity in the complex Klein-Gordon field theory under both in and out of equilibrium setups. Particularly, in the non-equilibrium case, I will consider the time evolution of the charge imbalance resolved negativity in a special kind of non-equilibrium state known as global quantum quenches. A global quantum quench describes a process in which there is a sudden change of the Hamiltonian. Finally, I will show how to interpret our results in the framework of quasi-particle picture.

报告人简介：

陈辉煌，江西师范大学物理与通信电子学院讲师，2013年山东大学本科毕业，2018年中国科学院大学博士毕业，2018年至今在江西师范大学任讲师，主要研究兴趣集中在量子场论，共形场论及可积系统在高能物理和统计物理中的应用，研究方向包括三维超对称陈-Simons-物质理论中的可积性问题，可积性在统计物理中的应用，二维量子场论中的纠缠熵问题，在该研究领域国际主流期刊上发表学术论文12篇。

报告链接：

Symmetry resolved entanglement in and out of equilibrium_哔哩哔哩_bilibili