PIRSA ID: 22120012
Series: Quantum Fields and Strings
Event Type: Seminar
Scientific Area(s): Quantum Fields and Strings
End date: 2022-12-06
Speaker(s): Elizabeth Himwich
In this talk, I will show that the action of soft graviton operators generates a w(1+infinity) symmetry in gravitational theories minimally coupled to massless and massive scalar matter in 4D asymptotically flat spacetimes. I will discuss how the symmetry action follows from an infinite tower of soft graviton theorems in momentum space. By generalizing the previous analyses of w(1+infinity) symmetry in massless amplitudes, these results clarify that the symmetry emerges in 4D asymptotically flat gravitational theories without any additional technical ingredients. This talk is based on a forthcoming paper with Monica Pate.
Zoom link: https://pitp.zoom.us/j/91448920819?pwd=cFY0L1JPVFF2bDUwc3JiVlRlbE5ldz09