Kaluza-Klein Black Holes in String Theory

Abstract

Exact solutions of heterotic string theory corresponding to four-dimensional magnetic black holes in $N=4$ supergravity are described. The solutions describe the black holes in the throat limit, and consist of a tensor product of an $SU(2)$ WZW orbifold with the linear dilaton vacuum, supersymmetrized to $(1,0)$ world sheet SUSY. One dimension of the $SU(2)$ model is interpreted as a compactified fifth dimension, leading to a four dimensional solution with a Kaluza-Klein gauge field having a magnetic monopole background; this corresponds to a solution in $N=4$ supergravity, since that theory is obtained by dimensional reduction of string theory.

13p. uses Harvmac

References in corpus (4)

• Noncompact Symmetries in String Theory
• Supersymmetry as a Cosmic Censor
• Four Dimensional Black Holes in String Theory
• A Superstring Theory in Four Curved Space-Time Dimensions

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• U-duality and non-BPS solutions
• Melvin solution in string theory
• Taub--NUT Dyons in Heterotic String Theory
• Extremal black holes as exact string solutions
• Is string theory a theory of strings?
• New approach to solution generation using SL(2,R)-duality of a dimensionally reduced space in five-dimensional minimal supergravity and new black holes
• A Note on Exact Solutions and Attractor Mechanism for Non-BPS Black Holes
• Black Holes with Intrinsic Spin