Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
1997-07-03
Mod.Phys.Lett. A12 (1997) 2683-2690
Physics
High Energy Physics
High Energy Physics - Theory
8 pages
Scientific paper
10.1142/S0217732397002818
It is well known that spherically symmetric reduction of General Relativity (SSG) leads to non-minimally coupled scalar matter. We generalize (and correct) recent results to Hawking radiation for a class of dilaton models which share with the Schwarzschild black hole non-minimal coupling of scalar fields and the basic global structure. An inherent ambiguity of such models (if they differ from SSG) is discussed. However, for SSG we obtain the rather disquieting result of a negative Hawking flux at infinity, if the usual recipe for such calculations is applied.
Kummer Wolfgang
Liebl H.
Vassilevich Dmitri V.
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