On the Marginal Deformations of General (0,2) Non-Linear Sigma-Models

Abstract

In this note we explore the possible marginal deformations of general (0,2) non-linear sigma-models, which arise as descriptions of the weakly coupled (large radius) limits of four-dimensional N = 1 compactifications of the heterotic string, to lowest order in alpha' and first order in conformal perturbation theory. The results shed light from the world-sheet perspective on the classical moduli space of such compactifications. This is a contribution to the proceedings of String-Math 2012.