Symplectic Deformations of Gauged Maximal Supergravity

TL;DR

This paper characterizes the space of symplectic deformations in maximal gauged supergravity, revealing how different models with the same gauge group can be parametrized and exploring specific cases like SO(8) and Cremmer-Scherk-Schwarz models.

Contribution

It introduces a method to identify and parametrize the space of symplectic deformations in maximal gauged supergravity theories, extending previous analyses to new gaugings.

Findings

Identified the space of symplectic deformations for various gaugings.

Extended analysis to SO(8) and other models.

Provided a framework for classifying inequivalent supergravity models.

Abstract

We identify the space of symplectic deformations of maximal gauged supergravity theories. Coordinates of such space parametrize inequivalent supergravity models with the same gauge group. We apply our procedure to the SO(8) gauging, extending recent analyses. We also study other interesting cases, including Cremmer-Scherk-Schwarz models and gaugings of groups contained in SL(8,R) and in SU*(8).