Gauge Fields and D-branes

TL;DR

This paper establishes a correspondence between self-dual gauge fields in type I superstring theory and Dirichlet 5-brane configurations, providing an explicit construction via the ADHM sigma model.

Contribution

It demonstrates the equivalence between self-dual gauge fields and D-brane configurations, introducing an explicit ADHM sigma model construction.

Findings

Self-dual gauge fields correspond to D5-brane configurations.

The world-sheet theory of a D1-brane in a D5-brane background includes an ADHM sigma model.

Provides an explicit construction of self-dual gauge fields in string theory.

Abstract

We prove that self-dual gauge fields in type I superstring theory are equivalent to configurations of Dirichlet 5-branes, by showing that the world-sheet theory of a Dirichlet 1-brane moving in a background of 5-branes includes an ``ADHM sigma model.'' This provides an explicit construction of the equivalent self-dual gauge field. We also discuss type II.