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PIRSA:12110064

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https://pirsa.org/12110064

Dynamical evaporation of quantum horizons

(2012). Dynamical evaporation of quantum horizons. Perimeter Institute for Theoretical Physics. https://pirsa.org/12110064

Talk numberPIRSA:12110064
DOI10.48660/12110064
Source RepositoryPIRSA
Collection
Talk Type Scientific Series
Subject

Abstract

We describe of the evaporation process as driven by the dynamical evolution of the quantum gravitational degrees of freedom resident at the horizon, as identified by the Loop Quantum Gravity kinematics. Using a parallel with the Brownian motion, we interpret the first law of quantum dynamical horizon in terms of a fluctuation-dissipation relation applied to this fundamental discrete structure. In this way, the horizon evolution is described in terms of relaxation to an equilibrium state balanced by the excitation of Planck scale constituents of the horizon. We show how from this setting the emergence of several conservative scenarios for the final stage of the evaporation process can be microscopically derived. Namely, the leakage of part of the horizon quantum geometry information prior to the Planckian phase and the stabilization of the hole surface shrinkage forming a massive remnant, which can eventually decay, are shown to take place.