报告题目：SL(2,C)×U(1) algebra and celestial primary conformal wave functions

报告人：张宏宝 副教授（北京师范大学）

报告时间：2023年05月25日（周四）下午15:30-16:30

报告地点：北洋园校区49教210室

报告摘要：

In this talk, I will report our upcoming work on celestial primary conformal wave functions, which are believed to serve as the appropriate building blocks to formulate holographic prescription of the bulk dynamics, saying scattering amplitude in Minkowski spacetime. In particular, after a brief introduction to the relevant spinor machinery for celestial holography, I will show how the celestial primary conformal wave functions for massless particles can be understood explicitly as the representation of the bulk SL(2,C)×U(1), where SL(2,C) is the familiar Lorentz algebra and U(1) corresponds to the dilatation. With this new observation, we can further develop the relationship between celestial conformal weights and the bulk scaling dimension. I will conclude my talk with some ideas worthy of further exploration.

报告人简介：

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与全息引力以及协变相空间理论及其相关应用。