Proposal for the Open String Tachyon Effective Action in the Linear Dilaton Background

TL;DR

This paper proposes an effective action for open string tachyons on unstable D-branes within linear dilaton backgrounds, aiming to better understand their dynamics in string theory.

Contribution

It introduces a new tachyon effective action specifically formulated for unstable D-branes in linear dilaton backgrounds, extending previous models.

Findings

Proposed a consistent tachyon effective action in linear dilaton backgrounds.

Analyzed the dynamics of unstable D-branes with the new action.

Provided insights into tachyon condensation in non-trivial backgrounds.

Abstract

In this paper we propose tachyon effective actions for unstable D-branes in superstring and bosonic string theories in the presence of the linear dilaton background.