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arXiv · 0810.3472

Asymptotic Expansion of the N=4 Dyon Degeneracy

Nabamita Banerjee·Dileep P. Jatkar·Ashoke Sen
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Abstract

We study various aspects of power suppressed as well as exponentially suppressed corrections in the asymptotic expansion of the degeneracy of quarter BPS dyons in N=4 supersymmetric string theories. In particular we explicitly calculate the power suppressed corrections up to second order and the first exponentially suppressed corrections. We also propose a macroscopic origin of the exponentially suppressed corrections using the quantum entropy function formalism. This suggests a universal pattern of exponentially suppressed corrections to all four dimensional extremal black hole entropies in string theory.

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Nabamita Banerjee, Dileep P. Jatkar, Ashoke Sen. 2008-12-03. Asymptotic Expansion of the N=4 Dyon Degeneracy. https://doi.org/10.1088/1126-6708%2F2009%2F05%2F121

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