Level Four Approximation to the Tachyon Potential in Superstring Field Theory

TL;DR

This paper calculates the tachyon potential in superstring field theory up to level 4, achieving 89% of the expected vacuum energy, advancing understanding of string vacua.

Contribution

It provides a detailed level 4 approximation of the tachyon potential, improving previous estimates in superstring field theory.

Findings

Achieved 89% of the conjectured vacuum energy.

Extended the computation of the tachyon potential to level 4.

Enhanced the accuracy of superstring field theory models.

Abstract

We compute the tachyon potential to level 4 in NS superstring field theory. We obtain 89% of the conjectured vacuum energy.