报告题目：Non-equilibrium dynamics cries for holographic duality

报告人：张宏宝副教授    北京师范大学

报告时间：2023年11月21日（周二）15:00

报告地点：理六栋302        邀请人：张善超

报告内容：

Compared to the equilibrium state and its linear transport properties, quantum many-body non-equilibrium dynamics is notoriously difficult in light of the conventional toolbox. Here comes holographic duality, which maps such a hard problem to an easy one, where we are only required to solve the bulk gravitational dynamics with one extra dimension. In particular, the dissipation is encoded in a natural way as excitations absorbed by the bulk black hole. In this talk, I will demonstrate you the power of holographic duality by working with the simplest holographic model of superfluid. In particular, I will present you some novel patterns emerging from the splitting of multiply quantized vortex, which may be verified in the cold atom experiments. If time permits, I also report the creation of time crystals in the periodic driven superfluid, which offers us the third route to avoid the heating problem in engineering of time crystals.

专家简介：

张宏宝副教授，现就职于北京师范大学物理学系。北师大本科，北大硕士，北师大，加拿大圆周研究所，以及滑铁卢大学联合培养博士。曾先后在希腊克里特大学，布鲁塞尔自由大学以及索尔维国际研究所从事博士后研究工作。目前主要研究兴趣集中于数值相对论在AdS/CFT对偶以及天体物理中的应用以及协变相空间理论及其在量子场论以及引力中的应用。