NORMAL COORDINATES, THETA EXPANSION AND STRINGS ON CURVED SUPERSPACE
J. Atick · OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) · 2022
A method for normal coordinate expansion of superspace a-model actions is developed and used to obtain a covariant O-expansion of the heterotic Green-Schwarz superstring in curved superspace.It is shown that in the absence of background fermions the expansion terminates at order O2 in the light-cone gauge.An expression for the gauge-fixed action including background metric, torsion and Yang-Mills fields is given.