Tachyon Condensation on a non-BPS D-brane

TL;DR

This paper enhances the calculation of the tachyon potential on a non-BPS D-brane by incorporating higher-level fields and terms, achieving over 90% accuracy of the expected theoretical value.

Contribution

It extends previous computations by including level two fields and up to level four terms, improving the precision of tachyon potential calculations.

Findings

Achieved 90.5% of the expected tachyon potential value.

Extended the computational framework to include higher-level fields.

Improved accuracy over previous level truncation methods.

Abstract

We extend the recent computation of the tachyon potential by Berkovits, Sen and Zwiebach by including level two fields and keeping up to level four terms in the action. We find 90.5% of the expected result.