Internal Structure of Black Holes

Details Internal Structure of Black Holes Internal Structure of Black Holes

1995-11-09

arxiv.org/abs/hep-th/9511064v1

Phys.Lett. B375 (1996) 37-42

Physics

High Energy Physics

High Energy Physics - Theory

15 pages, no figures, Phyzzx

Scientific paper

10.1016/0370-2693(96)00220-1

We present a number of qualitative arguments which strongly suggest that extremal dyonic black holes in the 4--dimensional low energy, classical field theory limit of toroidally compactified heterotic string theory represent largely degenerate classes of states in the quantum theory. We propose a simple expression for the full non--perturbative degeneracy, which contains no free continuous parameters and reproduces the Bekenstein-Hawking $S={A\over 4G_N}$ in the large-area limit (with the ${1\over 4}$ arising from microphysics). We sketch the elements of a physical picture leading to this expression: the holes support much hair, such that in counting it we are led to an effective string theory, and a matching condition whose solutions give the degeneracy.

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