652 citations · 2.7k across the 30 of their papers we have counts for
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hep-th2011★ 419 cited
BMS charge algebra
Glenn Barnich, Cedric Troessaert
The surface charges associated with the symmetries of asymptotically flat four dimensional spacetimes at null infinity are constructed. They realize the symmetry algebra in general…
gr-qc2011★ 67 cited
Supertranslations call for superrotations
Glenn Barnich, Cédric Troessaert
We review recent results on symmetries of asymptotically flat spacetimes at null infinity. In higher dimensions, the symmetry algebra realizes the Poincaré algebra. In three and fo…