Flux Backgrounds in 2D String Theory

TL;DR

This paper explores RR flux backgrounds in 2D type 0 string theories, establishing dualities, matrix model descriptions, and novel backgrounds, revealing new symmetries and connections between different string theories in two dimensions.

Contribution

It introduces a dual flux background in type 0B theory via T-duality and proposes its matrix model, also constructing a 2D type IIB background as an orbifold of the 0B background.

Findings

Identified a dual flux background in type 0B theory.

Proposed a matrix model description for the dual background.

Constructed a 2D type IIB background as an orbifold of the 0B background.

Abstract

We study RR flux backgrounds in two dimensional type 0 string theories. In particular, we study the relation between the 0A matrix model and the extremal black hole in two dimensions. Using T-duality we find a dual flux background in type 0B theory and propose its matrix model description. When the Fermi level is set to zero this system remains weakly coupled and exhibits a larger symmetry related to the structure of flux vacua. Finally, we construct a two dimensional type IIB background as an orbifold of the 0B background.