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Quantized fields and temperature in charged dilatonic black hole spacetimes

Daniel J. Loranz·William A. Hiscock
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Abstract

The stress-energy tensor of a quantized scalar field is computed in the reduced two-dimensional charged dilatonic black hole spacetime of Garfinkle, Horowitz, and Strominger. In order for the stress-energy of quantized fields to be regular on the event horizon in both the extreme string metric and the conformally associated physical metric, it is necessary to assign a nonzero temperature, T = (8 pi e^{phi_0} M)^{-1}, to the extreme string metric, contrary to the expectation that this horizonless spacetime would have a natural temperature of zero.

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Daniel J. Loranz, William A. Hiscock. 1996-07-22. Quantized fields and temperature in charged dilatonic black hole spacetimes. https://doi.org/10.1103/physrevd.55.3893

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