Gauge and general coordinate invariance in non-polynomial closed string field theory

Abstract

An appropriate field configuration in non-polynomial closed string field theory is shown to correspond to a general off-shell field configuration in low-energy effective field theory. A set of string field theoretic symmetries that act on the fields in low-energy effective field theory as general coordinate transformation and antisymmetric tensor gauge transformation is identified. The analysis is carried out to first order in the fields; thus the symmetry transformations in string field theory reproduce the linear and the first non-linear terms in the gauge transformations in the low-energy effective field theory.