Closed Bosonic String Tachyon Potential from the $\mathcal{N}=1$ Point of View

TL;DR

This paper explores the potential of the closed bosonic string tachyon using $ abla=1$ superstring field theory, revealing destabilization of the bosonic minimum and identifying a new critical point with distinct properties.

Contribution

It introduces a novel approach to analyze the closed bosonic string tachyon potential via $ abla=1$ superstring field theory, uncovering new critical points and destabilization mechanisms.

Findings

Destabilization of the bosonic minimum by new CFT deformations

Identification of a new critical point of the potential

Discussion of properties of the new solution

Abstract

The potential of the closed bosonic bulk tachyon is investigated using $\mathcal{N}~=~1$ closed superstring field theory formulated around Berkovits' and Vafas embedding of the bosonic string into the superstring. From this point of view the bosonic minimum gets destabilized by new deformations of the underlying CFT. Another critical point of the potential is identified by solving the equation of motions and the properties of this new solution are discussed.