Quantum metric fluctuations and Hawking radiation

Abstract

In this Letter we study the gravitational interactions between outgoing configurations giving rise to Hawking radiation and in-falling configurations. When the latter are in their ground state, the near horizon interactions lead to collective effects which express themselves as metric fluctuations and which induce dissipation, as in Brownian motion. This dissipation prevents the appearance of trans-Planckian frequencies and leads to a description of Hawking radiation which is very similar to that obtained from sound propagation in condensed matter models.

4 pages, revtex

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• A Primer for Black Hole Quantum Physics
• Stochastic semiclassical fluctuations in Minkowski spacetime
• Stochastically Fluctuating Black-Hole Geometry, Hawking Radiation and the Trans-Planckian Problem
• Hawking Radiation from Feynman Diagrams

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