Dyonic Black Holes with String-Loop Corrections

TL;DR

This paper investigates how string-loop corrections affect dyonic black holes in heterotic string theory with N=2 supersymmetry, providing explicit solutions for the corrected metric and moduli at first order in string coupling.

Contribution

It presents the first explicit calculation of string-loop corrections to dyonic black hole solutions within N=2 supersymmetric heterotic string theory.

Findings

Derived corrected metric and moduli for dyonic black holes.

Solved loop-corrected Maxwell and Killing spinor equations.

Quantified the impact of string-loop effects on black hole properties.

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.