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Trans-Planckian Modes, Back-Reaction, and the Hawking Process

2000/08/07 by Adam D. Helfer, Helfer, Adam D. · 1 citation
Physics and Astronomy · #FOS: Physical sciences #General Relativity and Quantum Cosmology (gr-qc) #gr-qc

paper · pdf · doi:10.48550/arxiv.gr-qc/0008016

7 pages, plain Tex, IOP macros, 1 eps figure

arxiv created 2000/08/07 · arxiv updated 2009/11/30

Abstract

Hawking's prediction of black-hole evaporation depends on the application of known physics to fantastically high energies -- well beyond the Planck scale. Here, I show that before these extreme regimes are reached, another physical effect will intervene: the quantum backreaction on the collapsing matter and its effect on the geometry through which the quantum fields propagate. These effects are estimated by a simple thought experiment. When this is done, it appears that there are no matrix elements allowing the emission of Hawking quanta: black holes do not radiate.

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