On the Integrability of Covariant Field Theory for Open N=2 Strings

TL;DR

This paper investigates the integrability of open N=2 string field equations, revealing an infinite hierarchy of symmetries that influence scattering amplitudes and contribute to understanding string theory's mathematical structure.

Contribution

It introduces a novel integrability framework for open N=2 string field equations, including an infinite hierarchy of solution-generating symmetries and their implications.

Findings

Derivation of an infinite set of non-local symmetries

Embedding of string equations into an overdetermined hierarchy

Most scattering amplitudes vanish due to hidden symmetries

Abstract

We discuss the integrability of the Berkovits-Siegel open string field equations and derive an infinite set of their non-local (solution-generating) symmetries. The string field equations are embedded in an infinite system of overdetermined equations (BS hierarchy) associated with hidden string symmetries. The latter enforce the vanishing of most scattering amplitudes for the open N=2 string.