Dyonic BPS Saturated Black Holes of Heterotic String on a Six-Torus

Details Dyonic BPS Saturated Black Holes of Heterotic String on a Six-Torus Dyonic BPS Saturated Black Holes of Heterotic String on a Six-Torus

1995-07-18

arxiv.org/abs/hep-th/9507090v2

Phys.Rev.D53:584-588,1996

Physics

High Energy Physics

High Energy Physics - Theory

10 pages, uses RevTex, improved version to appear in Rapid Communication of PRD

Scientific paper

10.1103/PhysRevD.53.584

Within effective heterotic superstring theory compactified on a six-torus we derive minimum energy (supersymmetric), static, spherically symmetric solutions, which are manifestly invariant under the target space $O(6,22)$ and the strong-weak coupling $SL(2)$ duality symmetries with 28 electric and 28 magnetic charges subject to one constraint. The class of solutions with a constant axion corresponds to dyonic configurations subject to two charge constraints, with purely electric [or purely magnetic] and dyonic configurations preserving ${1\over 2}$ and ${1\over 4}$ of $N=4$ supersymmetry, respectively. General dyonic configurations in this class have a space-time of extreme Reissner-Nordstr\" om black holes while configurations with more constrained charges have a null or a naked singularity.

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