The exceptional story of massive IIA supergravity

TL;DR

This paper extends exceptional field theory to include consistent deformations, successfully reproducing massive type IIA supergravity geometrically and unifying all maximal supergravities in ten and eleven dimensions.

Contribution

It introduces a novel deformation of the generalised Lie derivative that geometrically encodes massive type IIA supergravity within exceptional field theory.

Findings

Massive IIA supergravity is derived as a solution of the section constraint.

The deformed theory's action reduces to known supergravity actions in specific limits.

The framework unifies all ten- and eleven-dimensional maximal supergravities.

Abstract

The framework of exceptional field theory is extended by introducing consistent deformations of its generalised Lie derivative. For the first time, massive type IIA supergravity is reproduced geometrically as a solution of the section constraint. This provides a unified description of all ten- and eleven-dimensional maximal supergravities. The action of the E7 deformed theory is constructed, and reduces to those of exceptional field theory and gauged maximal supergravity in respective limits. The relation of this new framework to other approaches for generating the Romans mass non-geometrically is discussed.