Gauged Linear Sigma Model for Exotic Five-brane

TL;DR

This paper develops a supersymmetric gauged linear sigma model that describes multi-centered KK-monopoles and, through T-duality, reveals a model for the exotic 522-brane with B-field, advancing understanding of string dualities.

Contribution

It introduces a new T-duality transformation in a gauged linear sigma model that captures exotic branes with B-fields, extending previous models of KK-monopoles.

Findings

Derived a gauged linear sigma model for multi-centered KK-monopoles.

Discovered a new T-duality transformation applicable with F-terms.

Constructed a model describing the exotic 522-brane with B-field.

Abstract

We study an N=(4,4) supersymmetric gauged linear sigma model which gives rise to the nonlinear sigma model for multi-centered KK-monopoles. We find a new T-duality transformation of the model even in the presence of F-terms. Performing T-duality, we find the gauged linear sigma model whose IR limit describes the exotic 522-brane with B-field.