Dimensional Oxidation of Non-geometric Fluxes in Type II Orientifolds

TL;DR

This paper revisits string compactifications with non-geometric fluxes using double field theory, deriving flux forms, analyzing the superpotential, and confirming compatibility with gauged supergravity in type IIA and IIB orientifolds.

Contribution

It provides a detailed derivation of flux-induced scalar potentials and their ten-dimensional origins, confirming consistency with double field theory formulations.

Findings

Flux forms derived and reexpressed in double field theory

Scalar potential oxidized to ten-dimensional action

Compatibility established between bottom-up approach and gauged supergravity

Abstract

Some aspects of string compactifications with non-geometric fluxes are revisited in the light of recent progress in double field theory. After rederiving the general form of these fluxes, we consider the proposed flux induced four-dimensional effective superpotential and oxidize its induced scalar potential to terms in a ten-dimensional action. This analysis is performed independently for an explicit toroidal type IIA and its T-dual type IIB orientifold. We show in detail that the result of this bottom-up approach is compatible with the gauged supergravity motivated flux formulation of the double field theory action in both the NS-NS and the R-R sector.