Cubic interaction term for Schnabl's solution using Pade approximants

TL;DR

This paper computes the cubic interaction term for Schnabl's solution in open bosonic string field theory using Pade approximants, providing evidence that the solution satisfies the equations of motion.

Contribution

It introduces a novel computational approach using Pade approximants to evaluate the cubic interaction term for Schnabl's solution.

Findings

The cubic interaction term confirms the validity of Schnabl's solution.

The method supports the solution satisfying the equations of motion.

Provides new computational evidence for string field theory solutions.

Abstract

We evaluate the cubic interaction term in the action of open bosonic string field theory for Schnabl's solution written in terms of Bernoulli numbers. This computation provides us with a new evidence for the fact that the string field equation of motion is satisfied when it is contracted with the solution itself.