699 citations · 6.2k across the 108 of their papers we have counts for
3 papers · 1 filter
A No-go Theorem for a Gauge Vector as a Space-time Goldstone
Remko Klein, Emanuel Malek, Diederik Roest +1
Scalars and fermions can arise as Goldstone modes of non-linearly realised extensions of the Poincare group (with important implications for the soft limits of such theories): the…
Angular inflation in multi-field -attractors
Perseas Christodoulidis, Diederik Roest, Evangelos I. Sfakianakis
We explore the dynamics of multi-field models of inflation in which the field-space metric is a hyperbolic manifold of constant curvature. Such models are known as -attractors a…
Symmetry Breaking Patterns for Inflation
Remko Klein, Diederik Roest, David Stefanyszyn
We study inflationary models where the kinetic sector of the theory has a non-linearly realised symmetry which is broken by the inflationary potential. We distinguish between kinet…