Dumb Holes and the Effects of High Frequencies on Black Hole Evaporation

Details Dumb Holes and the Effects of High Frequencies on Black Hole Evaporation Dumb Holes and the Effects of High Frequencies on Black Hole Evaporation

1994-09-06

arxiv.org/abs/gr-qc/9409008v2

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

This paper is being replaced to include figures, so that lanl can tex the paper and produce a ps version. The paper was publis

Scientific paper

10.1103/PhysRevD.51.2827

The naive calculation of black hole evaporation makes the thermal emission depend on the arbitrary high frequency behaviour of the theory where the theory is certainly wrong. Using the sonic analog to black holes-- dumb holes-- I show numerically that a change in the dispersion relation at high frequencies does not seem to alter the evaporation process, lending weight to the reality of the black hole evaporation process. I also suggest a reason for the insensitivity of the process to high frequency regime.

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