June 26, 2023 to July 21, 2023
Albano Building 3
Europe/Stockholm timezone

Double Copy in (A)dS

Jul 3, 2023, 10:30 AM
1h
Albano 3: 4204 - SU Conference Room (56 seats) (Albano Building 3)

Albano 3: 4204 - SU Conference Room (56 seats)

Albano Building 3

Hannes Alfvéns väg 12, 10691 Stockholm, Sweden
56

Speaker

Arthur Lipstein (Durham)

Description

The double copy is a powerful theoretical tool which allows one to reduce complicated gravitational calculations to simpler ones in gauge theory. In this talk, I will describe recent progress in extending these techniques to (A)dS background. First I will explain how to formulate self-dual gravity in AdS4 in terms of a simple scalar theory which makes the double copy manifest and reveals some surprising new connections to celestial holography. I will then describe recent work which extends these ideas beyond the self-dual sector. In particular, I will present a compact new formula for the tree-level wavefunction coefficient of four gravitons in dS4, which was obtained by combining recently developed cosmological bootstrap methods with double copy intuition.

Presentation materials