Extended Geometry and Gauged Maximal Supergravity

GERARDO ALDAZABAL; MARIANA GRANA; DIEGO MARQUES; ALEJANDRO ROSABAL

JOURNAL OF HIGH ENERGY PHYSICS - (Online)

Springer-Verlag

Año: 2013 p. 1 - 1

1029-8479

We consider generalized diffeomorphisms on an extended mega-space associated to the U-duality group of gauged maximal supergravity in four dimensions, E_7. Through the bein for the extended metric we derive dynamical (field-dependent) fluxes taking values in the representations allowed by supersymmetry, and obtain their quadratic constraints from gauge consistency conditions. A covariant generalized Ricci tensor is introduced, defined in terms of a connection for the generalized diffeomorphisms. We show that for any torsionless and metric-compatible generalized connection, the Ricci scalar reproduces the scalar potential of gauged maximal supergravity. We comment on how these results extend to other groups and dimensions.