Non-Abelian Brane Worlds: The Open String Story

TL;DR

This paper develops new string model building rules for constructing chiral supersymmetric Type I compactifications on Calabi-Yau manifolds, involving D-branes with complex gauge bundles and wrapped branes on curves.

Contribution

It extends previous methods by incorporating stable U(n) bundles on D9-branes and D5-branes wrapping holomorphic curves, enabling more general model constructions.

Findings

New rules for building chiral supersymmetric models

Inclusion of stable U(n) bundles on D9-branes

Construction of models with D5-branes on holomorphic curves

Abstract

We extend the string model building rules for the construction of chiral supersymmetric Type I compactifications on smooth Calabi-Yau manifolds. These models contain stacks of D9-branes endowed with general stable U(n) bundles on their world-volume and D5-branes wrapping holomorphic curves on the Calabi-Yau.