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arXiv · 1912.12650

On the stress-energy tensor of a null shell in Einstein-Cartan gravity

S. Khakshournia·R. Mansouri
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Abstract

The stress-energy tensor of a matter shell whose history coincides with a null hypersurface in the Einstein-Cartan gravity is revisited. It is demonstrated that with a proper choice for the torsion discontinuity taken to be orthogonal to the null hypersurface and consistent with the antisymmetric property of torsion tensor, the modified expression for the asymmetric stress-energy tensor is automatically tangent to the hypersurface. The main differences with respect to a previous work are addressed

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S. Khakshournia, R. Mansouri. 2019-12-29. On the stress-energy tensor of a null shell in Einstein-Cartan gravity. https://doi.org/10.1088/1361-6382%2Fab47d4

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