Asymptotic Symmetries of Gauge and Gravity Theories in Minkowski Space
APA
Strominger, A. (2014). Asymptotic Symmetries of Gauge and Gravity Theories in Minkowski Space. Perimeter Institute. https://pirsa.org/14030087
MLA
Strominger, Andrew. Asymptotic Symmetries of Gauge and Gravity Theories in Minkowski Space. Perimeter Institute, Mar. 13, 2014, https://pirsa.org/14030087
BibTex
@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}} }
Harvard University
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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.