Background Independent Open String Field Theory and Constant B-Field

TL;DR

This paper computes the background independent open string field theory action and tachyon effective action in the presence of a constant B-field for both bosonic and supersymmetric cases.

Contribution

It provides explicit calculations of the background independent action and tachyon effective action with a constant B-field, advancing understanding of string field theory in such backgrounds.

Findings

Derived the background independent action in a constant B-field.

Determined the tachyon effective action under these conditions.

Extended results to both bosonic and supersymmetric string theories.

Abstract

We calculate the background independent action for bosonic and supersymmetric open string field theory in a constant B-field. We also determine the tachyon effective action in the presence of constant B-field.