Supertwistors and Cubic String Field Theory for Open N=2 Strings

TL;DR

This paper integrates supertwistor methods with a Chern-Simons-type string field theory to describe open N=2 strings, deriving covariant equations of motion through twistor correspondence.

Contribution

It introduces a novel twistor-based string field theory formulation for open N=2 strings, unifying Lorentz invariance with super Yang-Mills theories.

Findings

Derivation of covariant string field equations of motion

Extension to supersymmetric cases

Connection between twistor variables and string field theory

Abstract

The known Lorentz invariant string field theory for open N=2 strings is combined with a generalization of the twistor description of anti-self-dual (super) Yang-Mills theories. We introduce a Chern-Simons-type Lagrangian containing twistor variables and derive the Berkovits-Siegel covariant string field equations of motion via the twistor correspondence. Both the purely bosonic and the maximally space-time supersymmetric cases are considered.