Extremal black holes as exact string solutions
arXiv:hep-th/9408040 · doi:10.1103/PhysRevLett.73.3351
Abstract
We show that the leading order solution describing an extremal electrically charged black hole in string theory is, in fact, an exact solution to all orders in $\a'$ when interpreted in a Kaluza-Klein fashion. This follows from the observation that it can be obtained via dimensional reduction from a five dimensional background which is proved to be an exact string solution.
13 pages, harvmac, Imperial/TP/93-94/51, UCSBTH-94-24 (references added)