Note on D-Brane Effective Action in the Linear Dilaton Background

TL;DR

This paper investigates the effective action of unstable D-branes in a linear dilaton background, solving equations of motion and calculating stress-energy tensors, and compares these results with conformal field theory calculations.

Contribution

It provides a novel analysis of D-brane effective actions in linear dilaton backgrounds and compares effective field theory results with conformal field theory data.

Findings

Solutions for large T in the effective action

Calculated stress-energy tensor for the D-brane

Comparison with conformal field theory results

Abstract

In this short note we will study effective action for unstable D-brane in linear dilaton background. We will solve the equation of motion for large T and we will calculate the stress energy tensor. Then we compare our results with the calculations performed using exact conformal field theory description of the open string worldsheet theory.