Solutions from boundary condition changing operators in open superstring field theory

TL;DR

This paper constructs analytic solutions in open superstring field theory using boundary condition changing operators, extending prior bosonic string work, and calculates gauge-invariant observables showing boundary condition changes.

Contribution

It introduces a method to construct solutions in superstring field theory with boundary condition changes, expanding on previous bosonic string approaches.

Findings

Analytic solutions are constructed using boundary condition changing operators.

Gauge-invariant observables are calculated, confirming boundary condition changes.

The method extends to superstring theory, aligning with bosonic string results.

Abstract

We construct analytic solutions of open superstring field theory in the Berkovits formulation using boundary condition changing operators under some regularity conditions, extending the previous construction in the bosonic string. We also consider the gauge-invariant observables corresponding to closed string one-point functions on the disk. We analytically calculate the gauge-invariant observables for the solutions both in the bosonic string and in the superstring and find the expected change of boundary conditions of the disk.