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No-Go Theorem for Energy-Momentum Conservation in Curved Spacetime

Zhaoyan Wu
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Abstract

It is pointed out that in curved spacetime, one cannot define the sum of energy-momemtum 4-vector over a space-like hypersurface. The difficulty in finding satisfactory gravitational energy-momentum complex stems from misunderstanding of this question. The law of conservation of energy-momentum holds valid only approximately when spacetime is not seriously curved.

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Zhaoyan Wu. 2007-02-10. No-Go Theorem for Energy-Momentum Conservation in Curved Spacetime. https://arxiv.org/abs/gr-qc/0702059

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