PIRSA:14030087

Asymptotic Symmetries of Gauge and Gravity Theories in Minkowski Space

Strominger, A. (2014). Asymptotic Symmetries of Gauge and Gravity Theories in Minkowski Space. Perimeter Institute. https://pirsa.org/14030087

Strominger, Andrew. Asymptotic Symmetries of Gauge and Gravity Theories in Minkowski Space. Perimeter Institute, Mar. 13, 2014, https://pirsa.org/14030087 

          @misc{ pirsa_PIRSA:14030087,
            doi = {10.48660/14030087},
            url = {https://pirsa.org/14030087},
            author = {Strominger, Andrew},
            keywords = {Strong Gravity},
            language = {en},
            title = {Asymptotic Symmetries of Gauge and Gravity Theories in Minkowski Space},
            publisher = {Perimeter Institute},
            year = {2014},
            month = {mar},
            note = {PIRSA:14030087 see, \url{https://pirsa.org}}
          }

Andrew Strominger Harvard University

Talk numberPIRSA:14030087
DOI10.48660/14030087
Collection
Talk Type Scientific Series
Subject

Abstract

We argue that the infinite-dimensional BMS symmetry discovered by Bondi et. al in the 60s provides an exact symmetry of the quantum gravity S-matrix. The Ward identity of this symmetry is shown to be precisely Weinberg's soft graviton theorem, also discovered in the 60s. A parallel infinite-dimensional symmetry is found to be generated in nonabelian gauge theories by gauge transformations which go to an angle-dependent finite constant at null infinity. The Ward identity of this symmetry is shown to be the soft gluon theorem.