w(1+infinity) in 4D Gravity


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


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


          @misc{ pirsa_PIRSA:22120012,
            doi = {10.48660/22120012},
            url = {https://pirsa.org/22120012},
            author = {Himwich, Elizabeth},
            keywords = {Quantum Fields and Strings},
            language = {en},
            title = {w(1+infinity) in 4D Gravity },
            publisher = {Perimeter Institute},
            year = {2022},
            month = {dec},
            note = {PIRSA:22120012 see, \url{https://pirsa.org}}

Elizabeth Himwich Harvard University


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