## Video URL

http://pirsa.org/22120012# w(1+infinity) in 4D Gravity

### APA

Himwich, E. (2022). w(1+infinity) in 4D Gravity . Perimeter Institute for Theoretical Physics. http://pirsa.org/22120012

### MLA

Himwich, Elizabeth. w(1+infinity) in 4D Gravity . Perimeter Institute for Theoretical Physics, Dec. 06, 2022, http://pirsa.org/22120012

### BibTex

@misc{ scitalks_22120012, doi = {}, url = {http://pirsa.org/22120012}, author = {Himwich, Elizabeth}, keywords = {Quantum Fields and Strings}, language = {en}, title = {w(1+infinity) in 4D Gravity }, publisher = {Perimeter Institute for Theoretical Physics}, year = {2022}, month = {dec}, note = {Talk #22120012 see, \url{https://scitalks.ca}} }

Elizabeth Himwich Harvard University

## Abstract

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