Planck Scale Cosmology and Resummed Quantum Gravity

Abstract

We show that, by using amplitude-based resummation techniques for Feynman's formulation of Einstein's theory, we get quantum field theoretic 'first principles' predictions for the UV fixed-point values of the dimensionless gravitational and cosmological constants. Connections to the phenomenological asymptotic safety analysis of Planck scale cosmology by Bonanno and Reuter are discussed.

6 pages, 2 figures. To be published in the proceedings of DPF-2009, Detroit, MI, July 2009, eConf C090726; 3 typo's corrected