699 citations · 6.2k across the 108 of their papers we have counts for
6 papers · 2 filters
A Geometric Formulation of Supersymmetry
Daniel Z. Freedman, Diederik Roest, Antoine Van Proeyen
The scalar fields of supersymmetric models are coordinates of a geometric space. We propose a formulation of supersymmetry that is covariant with respect to reparametrizations of t…
General sGoldstino Inflation
Sergio Ferrara, Diederik Roest
We prove that all inflationary models, including those with dark energy after the end of inflation, can be embedded in minimal supergravity with a single chiral superfield. Moreove…
Sneutrino Inflation with -attractors
Renata Kallosh, Andrei Linde, Diederik Roest +1
Sneutrino inflation employs the fermionic partners of the inflaton and stabilizer field as right-handed neutrinos to realize the seesaw mechanism for light neutrino masses. We show…
Moduli Backreaction on Inflationary Attractors
Diederik Roest, Marco Scalisi, Pelle Werkman
We investigate the interplay between moduli dynamics and inflation, focusing on the KKLT-scenario and cosmological -attractors. General couplings between these sectors can induc…
Plateau Inflation from Random Non-Minimal Coupling
Benedict J. Broy, Dries Coone, Diederik Roest
A generic non-minimal coupling can push any higher-order terms of the scalar potential sufficiently far out in field space to yield observationally viable plateau inflation. We pro…
Exorcising the Ostrogradsky ghost in coupled systems
Remko Klein, Diederik Roest
The Ostrogradsky theorem implies that higher-derivative terms of a single mechanical variable are either trivial or lead to additional, ghost-like degrees of freedom. In this lette…