192 citations · 2.3k across the 49 of their papers we have counts for
4 papers · 1 filter
Critical point Higgs inflation in the Palatini formulation
Vera-Maria Enckell, Sami Nurmi, Syksy Rasanen +1
We study Higgs inflation in the Palatini formulation with the renormalisation group improved potential in the case when loop corrections generate a feature similar to an inflection…
Shining Primordial Black Holes
Mark P. Hertzberg, Sami Nurmi, Enrico D. Schiappacasse +1
We study the well-motivated mixed dark matter (DM) scenario composed of a dominant thermal WIMP, highlighting the case of triplet fermion "winos", with a small fraction o…
Novel mechanism for CMB modulation in the Standard Model
Alexandros Karam, Tommi Markkanen, Luca Marzola +3
We demonstrate that light spectator fields can source sizeable CMB anisotropies through modulated reheating even in the absence of direct couplings to the inflaton. The effect aris…
Primordial dark matter from curvature induced symmetry breaking
Laura Laulumaa, Tommi Markkanen, Sami Nurmi
We demonstrate that adiabatic dark matter can be generated by gravity induced symmetry breaking during inflation. We study a symmetric scalar singlet that couples to other fi…