The asymptotic safety scenario and scalar field inflation

Abstract

We study quantum gravity corrections to early universe cosmology as resulting within the asymptotic safety scenario. We analyse if it is possible to obtain accelerated expansion in the regime of the renormalisation group fixed point in a theory with Einstein-Hilbert gravity and a scalar field. We show how this phase impacts cosmological perturbations observed in the cosmic microwave background.

arXiv commentContribution to the proceedings of the Thirteenth Marcel Grossmann Meeting, Stockholm, 2012