Comparing D-branes to Black-branes

TL;DR

This paper compares D-brane interactions with black-brane scattering in supergravity, providing evidence for the D-brane description of black-branes and their eleven-dimensional origin in string theory.

Contribution

It calculates potentials between stationary and moving D-branes and compares them with supergravity results, confirming the D-brane/black-brane correspondence.

Findings

Potential calculations match supergravity scattering results

Configurations with unbroken supersymmetry identified

Supports the eleven-dimensional origin of type IIA string theory

Abstract

We calculate the potential between two different stationary D-branes and the velocity dependent potential between two different moving D-branes. We identify configurations with some unbroken supersymmetry, using a zero force condition. The potentials are compared with an eleven dimensional calculation of the scattering of a zero black-brane from the $0,2,4$ and 6 black-brane of type IIA supergravity. The agreement of these calculations provide further evidence for the D-brane description of black-branes, and for the eleven dimensional origin of type IIA string theory.