PIRSA:14030087 Scientific Series Strong Gravity

DOI10.48660/14030087

Series: Strong Gravity

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}}
}

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.

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