München 2019 – scientific programme

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MP: Fachverband Theoretische und Mathematische Grundlagen der Physik

MP 10: Gravitation, Felder und Schwarze Löcher

MP 10.3: Talk

Thursday, March 21, 2019, 11:40–12:00, HS 23

Quantum theory of charged black hole horizons — •Konstantin Eder — Lehrstuhl für Theoretische Physik III/Quantengravitation, FAU Erlangen-Nürnberg

We describe the quantum theory of isolated horizons with electromagnetic or non-Abelian gauge charges in the framework of Loop Quantum Gravity. We consider the distorted case, and its spherically symmetric limit. We show that the gravitational horizon d.o.f. give rise to the Bekenstein-Hawking relation, with lower-order terms giving some corrections for small black holes. Furthermore, we demonstrate that one can include matter d.o.f. in the state counting. We show that one can expect (potentially divergent) contributions proportional to the area, as well as logarithmic corrections proportional to the horizon charge. This is qualitatively similar to results on matter contributions obtained with other methods in the literature.