Entropy of Black Holes in N=2 Supergravity

Details Entropy of Black Holes in N=2 Supergravity Entropy of Black Holes in N=2 Supergravity

2009-07-09

arxiv.org/abs/0907.1556v2

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

21 Pages, major revision, results unchanged

Scientific paper

Using the techniques of isolated horizon formalism, we construct the space of solutions of asymptotically flat extremal black holes in N=2 pure supergravity in 4 dimensions. We prove the laws of black hole mechanics. Further, restricting to constant area phase space, we show that the spherical horizons admits a U(1) Chern- Simons theory. Standard way of quantizing this topological theory and counting states confirms that entropy is indeed proportional to the area of horizon.

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