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arXiv · 1802.06135

Null Conservation Laws for Gravity

Florian Hopfmüller·Laurent Freidel
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Abstract

We give a full analysis of the conservation along null surfaces of generalized energy and super-momenta, for gravitational systems enclosed by a finite boundary. In particular we interpret the conservation equations in a canonical manner, revealing a notion of symplectic potential and a boundary current intrinsic to null surfaces. This generalizes similar analyses done at asymptotic infinity or on horizons.

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Florian Hopfmüller, Laurent Freidel. 2018-02-16. Null Conservation Laws for Gravity. https://doi.org/10.1103/physrevd.97.124029

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