Two Centered Black Holes and N=4 Dyon Spectrum
High Energy Physics - Theory
2009-04-17 v3
Abstract
The exact spectrum of dyons in a class of N=4 supersymmetric string theories is known to change discontinuously across walls of marginal stability. We show that the change in the degeneracy across the walls of marginal stability can be accounted for precisely by the entropy of two centered small black holes which disappear as we cross the walls of marginal stability.
Keywords
Cite
@article{arxiv.0705.3874,
title = {Two Centered Black Holes and N=4 Dyon Spectrum},
author = {Ashoke Sen},
journal= {arXiv preprint arXiv:0705.3874},
year = {2009}
}
Comments
LaTeX file, 12 pages; v3: added footnote 2 regarding overall sign of the index, expanded footnote 3, added references