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arXiv · hep-th/0401130

On the Energy-Momentum Density of Gravitational Plane Waves

T. Dereli·R. W. Tucker
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Abstract

By embedding Einstein's original formulation of GR into a broader context we show that a dynamic covariant description of gravitational stress-energy emerges naturally from a variational principle. A tensor $T^G$ is constructed from a contraction of the Bel tensor with a symmetric covariant second degree tensor field $Φ$ and has a form analogous to the stress-energy tensor of the Maxwell field in an arbitrary space-time. For plane-fronted gravitational waves helicity-2 polarised (graviton) states can be identified carrying non-zero energy and momentum.

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T. Dereli, R. W. Tucker. 2004-01-20. On the Energy-Momentum Density of Gravitational Plane Waves. https://doi.org/10.1088/0264-9381%2F21%2F6%2F013

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