N=2 Extremal Black Holes and Intersecting Branes

TL;DR

This paper presents a microscopic counting approach for the entropy of certain BPS black holes in type IIA string theory, using intersecting branes and a hypothesis about their degrees of freedom.

Contribution

It introduces a new microscopic counting method for black hole entropy based on intersecting branes and a simple hypothesis about their degrees of freedom.

Findings

Reproduces black hole entropy microscopically

Applies to BPS black holes on Calabi Yau threefolds

Supports the intersecting branes hypothesis

Abstract

Using a simple hypothesis about the degrees of freedom of intersecting branes we find a microscopic counting argument that reproduces the entropy of a class of BPS black holes of type IIA string theory on general Calabi Yau three folds.