Infra-red dynamics of D1-branes at the conifold

TL;DR

This paper investigates the low-energy behavior of D1-branes at the conifold, revealing that their infra-red dynamics are described by a linear dilaton background and a compact scalar, with implications for matrix string theory.

Contribution

It demonstrates the infra-red degrees of freedom of D1-branes at the conifold using methods from (4,4) theories, extending understanding of their low-energy dynamics.

Findings

Infra-red degrees of freedom are a linear dilaton with background charge of √2 and a compact scalar.

Formulation of matrix string theory in the conifold background.

Identification of the infra-red behavior of single and multiple D1-branes at the conifold.

Abstract

We study the infra-red dynamics of D1-branes at the conifold. We show using methods developed to study the infra-red dynamics of (4,4) theories, the infra-red degrees of freedom of the (2,2) theory of a single D1-brane at the conifold is that of a linear dilaton with background charge of $\sqrt{2}$ and a compact scalar. The gauge theory of $N$ D1-branes at the conifold is used to formulate the matrix string in the conifold background.