# Energy-momentum tensor near an evaporating black hole

@article{Davies1976EnergymomentumTN, title={Energy-momentum tensor near an evaporating black hole}, author={P. W. Davies and Stephen A. Fulling and W. G. Unruh}, journal={Physical Review D}, year={1976}, volume={13}, pages={2720-2723} }

We calculate the vacuum expectation value, T/sub ..mu nu../, of the energy--momentum tensor of a massless scalar field in a general two-dimensional spacetime and evaluate it in a two-dimensional model of gravitational collapse. In two dimensions, quantum radiation production is incompatible with a conserved and traceless T/sub ..mu nu../. We therefore resolve an ambiguity in our expression for T/sub ..mu nu../, regularized by a geodesic point-separation procedure, by demanding conservation but…

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