Exact and asymptotic degeneracies of small black holes

Dabholkar, Atish ; Denef, Frederik ; Moore, Gregory W. ; Pioline, Boris (2005) Exact and asymptotic degeneracies of small black holes Journal of High Energy Physics, 2005 (8). 021_1-021_30. ISSN 1126-6708

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Official URL: http://iopscience.iop.org/1126-6708/2005/08/021

Related URL: http://dx.doi.org/10.1088/1126-6708/2005/08/021


We examine the recently proposed relations between black hole entropy and the topological string in the context of type II/heterotic string dual models. We consider the degeneracies of perturbative heterotic BPS states. In several examples with N = 4 and N = 2 supersymmetry, we show that the macroscopic degeneracy of small black holes agrees to all orders with the microscopic degeneracy, but misses non-perturbative corrections which are computable in the heterotic dual. Using these examples we refine the previous proposals and comment on their domain of validity as well as on the relevance of helicity supertraces.

Item Type:Article
Source:Copyright of this article belongs to Institute of Physics Publishing.
Keywords:Topological Strings; Superstrings and Heterotic Strings; String Duality; Black Holes in String Theory
ID Code:8145
Deposited On:26 Oct 2010 05:56
Last Modified:16 May 2016 18:12

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