Extensions of the asymptotic symmetry algebra of general relativity
Abstract We consider a recently proposed extension of the Bondi-Metzner-Sachs algebra to include arbitrary infinitesimal diffeomorphisms on a 2-sphere. To realize this extended algebra as asymptotic symmetries, we work with an extended class of spacetimes in which the unphysical metric at null infin...
Main Authors: | Éanna É. Flanagan, Kartik Prabhu, Ibrahim Shehzad |
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Format: | Article |
Language: | English |
Published: |
SpringerOpen
2020-01-01
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Series: | Journal of High Energy Physics |
Subjects: | |
Online Access: | https://doi.org/10.1007/JHEP01(2020)002 |
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