Entropy of Four-Dimensional Rotating BPS-Dyons

Details Entropy of Four-Dimensional Rotating BPS-Dyons Entropy of Four-Dimensional Rotating BPS-Dyons

1996-10-08

arxiv.org/abs/hep-th/9610046v2

Phys.Rev.D55:1707-1710,1997

Physics

High Energy Physics

High Energy Physics - Theory

12 pages, uses RevTex, some misprints corrected

Scientific paper

10.1103/PhysRevD.55.1707

The known BPS dyon black hole solutions of the N=4 heterotic string in four dimensions with non-zero angular momentum all have naked singularities. We show that it is possible to modify a certain class of these solutions by the addition of massive Kaluza-Klein fields in such a way that the solutions decompactify near the core to five-dimensional black hole solutions with regular event horizons. We argue that the degeneracy of the four-dimensional BPS dyon states is given, for large charges, by the five-dimensional geometric entropy.

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