PP-Wave Light-Cone Superstring Field Theory

TL;DR

This paper develops a new cubic interaction vertex and supercharges in light-cone superstring field theory on a pp-wave background, verifying superalgebra consistency and exploring implications for gauge/string duality.

Contribution

It introduces a novel form of the cubic interaction vertex and supercharges, differing from previous literature, and applies them to compute three-point functions.

Findings

Verified superalgebra at first order in string coupling

Computed new three-point functions in pp-wave background

Discussed implications for gauge theory in BMN limit

Abstract

We construct the cubic interaction vertex and dynamically generated supercharges in light-cone superstring field theory in the pp-wave background. We show that these satisfy the pp-wave superalgebra at first order in string coupling. The cubic interaction vertex and dynamical supercharges presented here differ from the expressions previously given in the literature. Using this vertex we compute various string theory three-point functions and comment on their relation to gauge theory in the BMN limit.