SFT Action for Separated D-branes

TL;DR

This paper develops a new cubic string field theory action for separated D-branes, allowing for arbitrary zero-modes and without imposing twist symmetry, facilitating the study of diverse D-brane configurations.

Contribution

It introduces a novel string field theory action with a specific embedding coordinate treated separately, expanding the modeling capabilities for D-brane configurations.

Findings

Provides a truncated action at level (3,9)

Allows arbitrary zero-modes for the special direction

Does not impose twist symmetry

Abstract

We present an action for Cubic String Field Theory with one embedding coordinate treated separately. We truncate the action at level (3,9), but unlike many other works we do not impose twist symmetry. We also allow arbitrary zero-modes for the direction considered special. Our action provides a starting point for the study of numerous configurations of D-branes.