Abstract 摘要 |
Motivated by the scenario of asymptotically safety, Einstein gravity under RG improvement can be reformulated as f(R) and thus drive a period of inflation at early universe. It is interesting to include a Higgs boson which is expected to be responsible for the generation of primordial curvature perturbation through the mechanism of modulated reheating. I would like to talk about cosmological implications of this scenario. Further, I will talk about the tight constraint on the power spectrum and non-gaussianities from recently released Planck data. Though the parameter space is limit, it remains potentially interesting connection between collider physics and early universe physics. |