Thermodynamics and phases in quantum gravity

Abstract

We give an approach for studying quantum gravity effects on black hole thermodynamics. This combines a quantum framework for gravitational collapse with quasi-local definitions of energy and surface gravity. Our arguments suggest that (i) the specific heat of a black hole becomes positive after a phase transition near the Planck scale,(ii) its entropy acquires a logarithmic correction, and (iii) the mass loss rate is modified such that Hawking radiation stops near the Planck scale. These results are due essentially to a realization of fundamental discreteness in quantum gravity, and are in this sense potentially theory independent.

6 pages, 1 figure; matches published version

References in corpus (3)

• Noncommutative Black Holes, The Final Appeal To Quantum Gravity: A Review
• Symmetries, Horizons, and Black Hole Entropy
• Semiclassical states for quantum cosmology

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