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Dynamical evaporation of quantum horizons

MPG-Autoren
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Pranzetti,  Daniele
Microscopic Quantum Structure & Dynamics of Spacetime, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

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1211.2702
(Preprint), 322KB

CQG_30_16_165004.pdf
(beliebiger Volltext), 593KB

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Zitation

Pranzetti, D. (2013). Dynamical evaporation of quantum horizons. Classical and quantum gravity, 30(16): 165004. doi:10.1088/0264-9381/30/16/165004.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-000E-EE75-5
Zusammenfassung
We describe the black hole evaporation process 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 investigate the final stage of the evaporation process and show how, from this setting, the emergence of several conservative scenarios for the information paradox 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 described.