The boundary state for a class of analytic solutions in open string field theory

TL;DR

This paper constructs boundary states for specific analytic solutions in open string field theory, confirming their consistency with known limits and exploring implications for various vacuum and brane solutions.

Contribution

It introduces a method to construct boundary states for a class of analytic solutions, aligning with expected limits and expanding understanding of brane configurations.

Findings

Boundary states match expected limits for vacuum solutions

Boundary states suggest possible multi-brane and ghost brane solutions

Results are consistent with previous claims about propagator limits

Abstract

We construct a boundary state for a class of analytic solutions in the Witten's open string field theory. The result is consistent with the property of the zero limit of a propagator's length, which was claimed in [19]. And we show that our boundary state becomes expected one for the perturbative vacuum solution and the tachyon vacuum solution. We also comment on possible presence of multi-brane solutions and ghost brane solutions from our boundary state.