Title: Amplitude Bootstrap and Double Copy in (Anti) de-Sitter space

Speaker: Jiajie Mei

Time: Oct. 20th, 16:15

Location: Room 324 

Abstract: We will begin with a brief introduction to the Amplitude Bootstrap in Minkowski space. Then, we will use the same idea to bootstrap amplitude in (A)dS space by introducing a new representation of on-shell AdS amplitude in Mellin Momentum space.  Specifically, we will illustrate how the understanding of pole structure will completely fix the spin-1 exchange amplitude. Then we will use double copy to construct the first four-graviton amplitude in AdS_{d+1}.

Bio: Jiajie Mei is currently a PhD student in Durham University, supervised by Professor Arthur Lipstein. His research interests include scattering amplitudes in (A)dS and its application to Cosmology, AdS/CFT correspondences, etc.