A Picture of D-branes at Strong Coupling II. Spinning Partons

TL;DR

This paper explores the behavior of D-branes at strong coupling, revealing a foliation by strings and extending the parton picture to supersymmetric cases using degenerate supergravity.

Contribution

It introduces a new description of D-branes at infinite coupling, demonstrating a string foliation and applying degenerate supergravity to supersymmetric D-branes.

Findings

D-branes at strong coupling are described by a foliation of strings.

The parton picture applies to supersymmetric D-branes.

The analysis uses a generalized Born-Infeld action and degenerate supergravity.

Abstract

We study the Born-Infeld D-brane action in the limit when the string coupling goes to infinity. The resulting actions is presented in an arbitrary background and shown to describe a foliation of the world-volume by strings. Using a recently developed ``degenerate'' supergravity the parton picture is shown to be applicable also to supersymmetric D-branes.