Gauge and General Coordinate Invariance in Non-Polynomial Closed String Field Theory

TL;DR

This paper demonstrates how certain symmetries in non-polynomial closed string field theory correspond to general coordinate and gauge transformations in low energy effective field theory, establishing a link between string symmetries and spacetime invariances.

Contribution

It identifies string field theoretic symmetries that reproduce the gauge transformations of low energy effective field theory, clarifying the connection between string theory and spacetime symmetries.

Findings

String field symmetries match linear gauge transformations.

Symmetries reproduce first non-linear gauge terms.

Analysis confirms correspondence at first order.

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.