paper

A mode-sum prescription for the renormalized stress energy tensor on black hole spacetimes

arXiv:2201.05174 · doi:10.1103/PhysRevD.106.065023

Abstract

In this paper, we describe an extremely efficient method for computing the renormalized stress-energy tensor of a quantum scalar field in spherically-symmetric black hole spacetimes. The method applies to a scalar field with arbitrary field parameters. We demonstrate the utility of the method by computing the renormalized stress-energy tensor for a scalar field in the Schwarzschild black hole spacetime, applying our results to discuss the null energy condition and the semi-classical backreaction.

8 pages, 4 figures. Paper has been extended with further discussion and results added. Published in Physical Review D

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