113 citations · 890 across the 27 of their papers we have counts for
3 papers · 1 filter
Symmetric Superfluids
Enrico Pajer, David Stefanyszyn
We present a complete classification of symmetric superfluids, namely shift-symmetric and Poincaré invariant scalar field theories that have an enlarged set of classically conserve…
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…
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…