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arXiv · 1609.01731

Bondi-Sachs Formalism

Thomas Mädler·Jeffrey Winicour
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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.

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Thomas Mädler, Jeffrey Winicour. 2018-01-17. Bondi-Sachs Formalism. https://doi.org/10.4249/scholarpedia.33528

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