Bondi-Sachs Formalism
Abstract
The Bondi-Sachs formalism of General Relativity is a metric-based treatment of the Einstein equations in which the coordinates are adapted to the null geodesics of the spacetime. It provided the first convincing evidence that gravitational radiation is a nonlinear effect of general relativity and that the emission of gravitational waves from an isolated system is accompanied by a mass loss from the system. The asymptotic behaviour of the Bondi-Sachs metric revealed the existence of the symmetry group at null infinity, the Bondi-Metzner-Sachs group, which turned out to be larger than the Poincare group.
Keywords
Cite
@article{arxiv.1609.01731,
title = {Bondi-Sachs Formalism},
author = {Thomas Mädler and Jeffrey Winicour},
journal= {arXiv preprint arXiv:1609.01731},
year = {2018}
}
Comments
Scholarpedia review article, an up-to-date version can be found under http://scholarpedia.org/article/Bondi-Sachs_Formalism, includes general normalisation of unit sphere dyad, corrected typos, additional references