Can Standard Model Higgs Seed the Formation of Structures in Our
  Universe?
  We study the Standard Model Higgs field as a source for the primordial
curvature perturbation, particularly in the curvaton and modulated reheating
scenario. We conclude that the Higgs cannot play as a curvaton due to the small
energy density when it decays, however the modulated reheating by Higgs can be
a viable scenario. In the latter case, the non-Gaussianity is inevitably
generated and strongly constrains the type of potential of inflaton field and
Higgs-dependent interaction term. For the quadratic potential of the inflaton
field with decay rate which non-linearly depends on the Higgs vacuum
expectation value, the contribution of Higgs field to the primordial curvature
perturbation must be less than 8%.
