First Order String Theory and the Kodaira-Spencer Equations. I
arXiv:0906.4746 · doi:10.1088/1126-6708/2009/09/028
Abstract
We consider first-order bosonic string theory, perturbed by the primary operator, corresponding to deformation of the target-space complex structure. We compute the effective action in this theory and find that its consistency with the world-sheet conformal invariance requires necessarily the Kodaira-Spencer equations to be satisfied by target-space Beltrami differentials. We discuss the symmetries of the theory and its reformulation in terms of the vielbein background fields.
13 pages, 2 figures