On D-Branes and Black Holes in Four Dimensions

TL;DR

This paper constructs extremal four-dimensional black holes from intersecting D-branes, showing their microscopic degeneracy matches the Bekenstein-Hawking entropy, and suggests their potential for dynamical black hole studies.

Contribution

It introduces a new class of extremal black holes built from intersecting D-branes with entropy calculations matching classical predictions.

Findings

Microscopic degeneracy agrees with Bekenstein-Hawking entropy.

Constructs extremal black holes from intersecting D-branes.

Absence of solitonic objects may aid dynamical studies.

Abstract

We find extremal four dimensional black holes with finite area constructed entirely from intersecting D-branes. We argue that the microscopic degeneracy of these configurations agrees with the Bekenstein-Hawking entropy formula. The absence of solitonic objects in these configurations may make them useful for dynamical studies of black holes.