Toward exotic 6D supergravities: Beyond exceptional field theory

Abstract: Exotic supergravities are six-dimensional theories with chiral maximal (4,0) and (3,1) supersymmetry, which instead of a graviton feature exotic gauge fields with non-standard Young tableaux representations, subject to selfduality constraints. After reduction to 5D they all share the field content of standard maximal supergravity. While so far these theories are only known in the free limit, their interacting versions were conjectured by C. Hull to exist and to describe strong coupling limits of N=8 theories in 5D.

I present novel actions in a 5+1 split of coordinates whose field equations reproduce those of the free bosonic (4,0) and (3,1) theory, respectively, including the selfduality relations. I discuss evidence for a master exceptional field theory formulation with an extended section constraint that, depending on the solution, produces the (4,0), (3,1) or the conventional (2,2) theory.

HEP - theory

Audience: researchers in the topic

Exceptional geometry seminar series

Series comments: This is an online seminar series focusing on new developments in exceptional field theory, generalised geometry and their applications.

See sites.google.com/view/egseminars/ for more details and instructions on how to join the meetings.