邀请人 (Invited by): 苗荣欣

时间 (Time): 星期四，2023/11/9-16：30-18：00

地点 (Location): 珠海校区瀚林 3 号楼B331会议室

摘要 (Abstract): 

In this talk, we mainly introduce how to connect the partition functions of gravity and SYK model with pole-skipping points. In the region far away from the conformal point, the Lagrangian can give the structure of phase transition. In the weak charge region, the Lyapunov exponent is close to chaos bound, while in the strong charge region, it is close to zero. For both charged and uncharged quantum many-body models, their pole-skipping points are consistent with charged and uncharged JT gravity pole-skipping points. The above results give a new duality relationship between the SYK model and JT gravity.

主讲人简介 (Speaker's CV): 

葛先辉，上海大学物理系教授，主要从事引力论与宇宙学的研究工作。2006年自中科院上海天文台获得博士学位，2006-2008年在韩国亚太理论物理中心从事博后研究。2008年至今在上海大学物理系从事教学科研工作，曾获上海市自然科学二等奖一项（第三完成人）。