Exact SU(2)*U(1) Stringy Black Holes
arXiv:hep-th/9409060 · doi:10.1103/PhysRevD.50.R7123
Abstract
Extreme magnetic dilaton black holes are promoted to exact solutions of heterotic string theory with unbroken supersymmetry. With account taken of alpha' corrections this is accomplished by supplementing the known solutions with SU(2) Yang-Mills vectors and scalars in addition to the already existing Abelian U(1) vector field. The solution has a simple analytic form and includes multi-black-holes. The issue of exactness of other black-hole-type solutions, including extreme dilaton electrically charged black holes and Taub-NUT solutions is discussed.
10 pages, SU-ITP-94-27 and QMW-PH-94-34 (version accepted for publication in Phys. Rev., contains a discussion of (4.1) supersymmetry of the black hole sigma model)
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- Supersymmetric solutions of N=2 d=4 sugra: the whole ungauged shebang
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- Gauge Symmetry Enhancement and N = 2 Supersymmetric Quantum Black Holes in Heterotic String Vacua