Dyonic Black Holes with String-Loop Corrections

Abstract

In heterotic string theory compactified to four dimensions with N=2 supersymmetry, string-loop corrections to the universal sector of the low-energy effective action are studied. Within the framework of N=2 supersymmetric formulation of the theory, in the first order in string coupling constant, we solve the system of the loop-corrected Maxwell and Killing spinor equations. Taking as the in-put the tree-level dyonic black hole solution, we calculate string-loop corrections to the string tree-level metric and moduli of dyonic black hole.

Improved version. Discussion of the ambiguity of the prepotential added. Mixing of the dilaton with other moduli properly taken into account. Explanatory notes added

References in corpus (3)

• Black Holes and Solitons in String Theory
• Introduction to Superstring Theory
• N=2 Supersymmetry and String-Loop Corrected Magnetic Black Holes