D-Branes in Linear Dilaton Backgrounds

TL;DR

This paper constructs a conformally invariant Dirichlet boundary state for linear dilaton backgrounds and applies it to two-dimensional string theory, advancing the understanding of D-branes in such backgrounds.

Contribution

It introduces a new boundary state construction for linear dilaton backgrounds that satisfies conformal invariance and Cardy's conditions, specifically applied to 2D string theory.

Findings

Boundary state is conformally invariant.

Boundary state satisfies Cardy's conditions.

Application to two-dimensional string theory.

Abstract

We construct a Dirichlet boundary state for linear dilaton backgrounds. The state is conformally invariant and satisfies Cardy's conditions. We apply this construction to two dimensional string theory.