Long strings in two dimensional string theory and non-singlets in the matrix model

TL;DR

This paper explores the physics of long strings in two-dimensional string backgrounds and their relation to non-singlet states in the dual matrix model, providing insights into non-perturbative effects.

Contribution

It introduces a detailed analysis of long strings and their connection to non-singlet sectors in the matrix model, advancing understanding of non-perturbative phenomena in 2D string theory.

Findings

Long strings originate from infinity in 2D string backgrounds.

Non-singlet states in the matrix model correspond to these long strings.

The study clarifies the role of non-perturbative effects in the duality.

Abstract

We consider two dimensional string backgrounds. We discuss the physics of long strings that come from infinity. These are related to non-singlets in the dual matrix model description.