Celestial Recursion
Organizers
Hongfei Shu
, Rui-Dong Zhu
, Hao Zou
Speaker
Time
Wednesday, October 26, 2022 10:00 AM - 12:00 PM
Venue
1108
Abstract
In this talk, I will begin with a brief introduction to celestial holography, before diving into some recent results on examining the BCFW recursion relations for celestial amplitudes and how they inform the celestial bootstrap program. We start by recasting the celestial incarnation of the BCFW shift as a generalization of the action of familiar asymptotic symmetries on hard particles, before focusing on two limits: large-z and infinitesimal-z. We then discuss how the celestial CFT data encodes the large-z behavior determining which shifts are allowed, while the infinitesimal limit is tied to the celestial bootstrap program via the BG equations that constrain the MHV sector.
Speaker Intro
Dr. Yangrui Hu is an Assistant Professor at BIMSA from 2025. She earned her Ph.D. in physics from Brown University in 2022, and was a postdoctoral fellow at the Perimeter Institute from 2022 to 2024 and at University of Waterloo from 2024 to 2025. Her research interests center on theoretical physics, specifically in the areas of AI+quantum, quantum information, and high-energy theory.