Black Hole Thermodynamics and Riemann Surfaces

Details Black Hole Thermodynamics and Riemann Surfaces Black Hole Thermodynamics and Riemann Surfaces

2003-02-18

arxiv.org/abs/gr-qc/0302073v1

Class.Quant.Grav. 20 (2003) 2235-2250

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

17+1 pages, 9 figures

Scientific paper

10.1088/0264-9381/20/11/319

We use the analytic continuation procedure proposed in our earlier works to study the thermodynamics of black holes in 2+1 dimensions. A general black hole in 2+1 dimensions has g handles hidden behind h horizons. The result of the analytic continuation is a hyperbolic 3-manifold having the topology of a handlebody. The boundary of this handlebody is a compact Riemann surface of genus G=2g+h-1. Conformal moduli of this surface encode in a simple way the physical characteristics of the black hole. The moduli space of black holes of a given type (g,h) is then the Schottky space at genus G. The (logarithm of the) thermodynamic partition function of the hole is the Kaehler potential for the Weil-Peterson metric on the Schottky space. Bekenstein bound on the black hole entropy leads us to conjecture a new strong bound on this Kaehler potential.

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