Black hole radiation (with and) without Weyl anomaly

Jun, 1995

9 pages

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Abstract:

In the semiclassical analysis of black hole radiation in matter-coupled dilaton gravity, a one-parameter ``

k

"-family of measures for the path integral quantization of the matter fields is considered. The Weyl anomaly is proportional to the parameter

k

, but the black hole radiation seen by minkowskian observers at future null infinity is

k

-independent.

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