Asymptotically Safe Non-Minimal Inflation

Understand

We study the constraints imposed by the requirement of Asymptotic Safety on a class of inflationary models with an inflaton field non-minimally coupled to the Ricci scalar.

• The critical surface in the space of theories is determined by the improved renormalization group flow which takes into account quantum corrections beyond the one loop approximation.
• The combination of constraints deriving from Planck observations and those from theory puts severe bounds on the values of the parameters of the model and predicts a quite large tensor to scalar ratio.
• We finally comment on the dependence of the results on the definition of the infrared energy scale which parametrises the running on the critical surface.