Energy conditions for evaporating black holes
Abstract
A model of an evaporating black hole, with a time dependent mass, is considered in this paper. By analyzing the Einstein tensor for this metric in an orthonormal frame, we prove that the weak, dominant and strong energy conditions are violated. We show that the spacetime is non-empty but the source cannot be purely electromagnetic or a massless scalar fiIeld.
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Taking physics to the summit
22-24 October 2008, University of the Philippines Baguio, Baguio City