3 papers
hep-th2026
Gravitational Effective Theories with Maximal Supersymmetry and a Peculiar Parity
Justin Berman, Simon Caron-Huot, Aditi V. Chandra +4
We study the space of four-dimensional ultraviolet completions for supergravity that are described at low energies by weakly-coupled effective field theories (EFTs)…
hep-th2026
A melonic quantum mechanical model without disorder
Anna Biggs, Loki L. Lin, Juan Maldacena
We consider a quantum mechanical model involving interacting fermions without disorder that has the same low energy physics as the supersymmetric SYK model. The model is in…
hep-th2024
Bootstrapping Extremal Scalar Amplitudes With and Without Supersymmetry
Justin Berman, Henriette Elvang, Nicholas Geiser +1
We re-examine positivity bounds on the scattering of identical massless real scalars with a novel perspective on how these bounds can be used to constrain the spectrum of U…