192 citations · 1.3k across the 33 of their papers we have counts for
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Vacuum decay constraints on the Higgs curvature coupling from inflation
Andreas Mantziris, Tommi Markkanen, Arttu Rajantie
We derive lower bounds for the Higgs-curvature coupling from vacuum stability during inflation in three inflationary models: quadratic and quartic chaotic inflation, and Starobinsk…
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…
Scalar correlation functions for a double-well potential in de Sitter space
Tommi Markkanen, Arttu Rajantie
We use the spectral representation of the stochastic Starobinsky-Yokoyama approach to compute correlation functions in de Sitter space for a scalar field with a symmetric or asymme…