Extremal black holes as exact string solutions

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)

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• How Does a Fundamental String Stretch its Horizon?
• Extremal Black Holes As Fundamental Strings
• General class of BPS saturated dyonic black holes as exact superstring solutions
• Exact Supersymmetric Massive and Massless White Holes
• Duality Beyond the First Loop
• Exact solutions of closed string theory
• Smooth geometries with four charges in four dimensions
• Stretching the Horizon of a Higher Dimensional Small Black Hole
• Exactly solvable string models of curved space-time backgrounds
• Ghost-Free Spectrum of a Quantum String in SL(2,R) Curved Spacetime
• Wavy Strings: Black or Bright?
• Static spherically symmetric solutions to Einstein-Maxwell Dilaton field equations in D dimensions
• Fundamental Superstrings as Holograms
• Charged black holes in generalized dilaton-axion gravity
• Duality Symmetric Quantization of Superstring
• Radiation from the extremal black holes
• Colliding Gravitational Plane Waves in Dilaton Gravity
• Duality and Four-Dimensional Black Holes
• Stringy Robinson-Trautman Solutions
• On Black Fundamental Strings
• On Some New Black String Solutions in Three Dimensions
• A Conformal Field Theory of a Rotating Dyon
• Kaluza-Klein Reduction of a Quadratic Curvature Model
• The Highly Damped Quasinormal Modes of Extremal Reissner-Nordström and Reissner-Nordström-de Sitter Black Holes
• Gravitating $\sigma$ Model Solitons
• The Heterotic Enhancon
• Dynamical supersymmetry enhancement of black hole horizons