$KBc$ algebra and the gauge invariant overlap in open string field theory

Abstract

We study in detail the evaluation of the gauge invariant overlap for analytic solutions constructed out of elements in the $KBc$ algebra in open string field theory. We compute this gauge invariant observable using analytical and numerical techniques based on the sliver frame ${\mathcal{L}}_0$ and traditional Virasoro $L_0$ level expansions of the solutions.

25 pages

References in corpus (12)

• Comments on Schnabl's analytic solution for tachyon condensation in Witten's open string field theory
• A Simple Analytic Solution for Tachyon Condensation
• Gauge Invariant Overlaps for Classical Solutions in Open String Field Theory
• On Multibrane Solutions in Open String Field Theory
• Comments on regularization of identity based solutions in string field theory
• Exotic Universal Solutions in Cubic Superstring Field Theory
• Multibrane solutions in cubic superstring field theory
• Generating Erler-Schnabl-type Solution for Tachyon Vacuum in Cubic Superstring Field Theory
• Level truncation analysis of a simple tachyon vacuum solution in cubic superstring field theory
• String field representation of the Virasoro algebra
• Numerical solution for tachyon vacuum in the Schnabl gauge
• Comments on real tachyon vacuum solution without square roots