Short distances, black holes, and TeV gravity

preprint2007arXivOpen access

Abstract

The Hawking effect can be rederived in terms of two-point functions and in such a way that it makes it possible to estimate, within the conventional semiclassical theory, the contribution of ultrashort distances at I+I^+ to the Planckian spectrum. Thermality is preserved for black holes with κlP<<1κl_P << 1. However, deviations from the Planckian spectrum can be found for mini black holes in TeV gravity scenarios, even before reaching the Planck phase.

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