7 papers
Uniqueness of D=8 minimal supergravity with two vector multiplets
Guillaume Bossard, Bingxin Lao, Ruben Minasian
There exist only four known string theories with minimal supersymmetry in eight dimensions, whose low energy effective descriptions are given by minimal supergravity coupled to $l=…
A unique coupling of the massive spin-2 field to supergravity
Guillaume Bossard, Gabriele Casagrande, Emilian Dudas +1
We show that the coupling of a massive spin-2 field to undeformed N=1 supergravity in four dimensions is unique, leading to a specific non-minimal coupling to the Riemann tensor. T…
Higher dualities in E11 exceptional field theory
Guillaume Bossard, Nicolas Boulanger, Josh O'Connor
It has been conjectured that there exists an E11-invariant formulation of eleven-dimensional supergravity in which the propagating fields of the theory are realised through an infi…
Bounds on the next-to-leading Wilson coefficient in maximal supergravity
Guillaume Bossard, Adrien Loty
One expects type II string theory to be the unique ultraviolet completion of maximal supergravity. Motivated by the recent computation of the unitary bound on the leading Wilson co…
Saturating unitarity bounds at U-duality symmetric points
Guillaume Bossard, Adrien Loty
It has recently been shown that the leading Wilson coefficient in type II string theory can take (almost) all values allowed by unitarity, crossing symmetry and maximal supersymmet…
The Ultraviolet Problem in Supergravity
G. Bossard, K. S. Stelle
We review the development of understanding for the problem of ultraviolet divergences in supergravity. This history proceeds from initial constructions of counterterms invariant un…