报告人：莫裕宇（爱丁堡大学）

时间：11月16日周日下午14:00 

地点：物理楼106 

Abstract: 

Einstein gravity is notoriously challenging to compute, even at the perturbative level. In flat space, the observable scattering amplitude of GR can be fixed by requiring consistency with unitarity, locality, symmetry, etc. How does this story extend to curved space and to higher points (n > 4)? In this talk, I will review recent progress on (on-shell) bootstrapping (A)dS spinning correlators, especially for Einstein gravity at five points and, in principle, iteratively to n points. Such on-shell formalism can further derive the Weinberg soft theorem for boundary correlators, which are dual to gravity in the bulk, at both leading and subleading order by solving the conformal Ward identity.