Open string fluctuations around $KBc$ mulibrane backgrounds

TL;DR

This paper studies open string fluctuations around multibrane solutions in open string field theory, deriving explicit constraints from the equations of motion for space-time independent fluctuations.

Contribution

It provides a detailed analysis of fluctuations in the $KBc$ framework and explicitly derives constraints on fluctuations around multibrane solutions.

Findings

Explicit constraints on fluctuations derived from equations of motion

Analysis focused on space-time independent leading order fluctuations

Advances understanding of stability and structure of multibrane solutions

Abstract

We investigate open string fluctuations around multibrane solutions within the $KBc$ subspace of open string field theory. Specifically, we consider space-time independent fluctuations of leading order zero in the $1/G$ expansion. A constraint on fluctuations around a multibrane solution is explicitly derived from the equation of motion.