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

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

2000-08-07

arxiv.org/abs/gr-qc/0008016v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

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

Scientific paper

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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