On the Possibility of Quantum Gravity Effects at Astrophysical Scales

Abstract

The nonperturbative renormalization group flow of Quantum Einstein Gravity (QEG) is reviewed. It is argued that at large distances there could be strong renormalization effects, including a scale dependence of Newton's constant, which mimic the presence of dark matter at galactic and cosmological scales.

LaTeX, 18 pages, 4 figures. Invited contribution to the Int. J. Mod. Phys. D special issue on dark matter and dark energy

References in corpus (5)

• Exact evolution equation for the effective potential
• Fixed Points of Higher Derivative Gravity
• Spacetime Structure of an Evaporating Black Hole in Quantum Gravity
• Renormalization group improved gravitational actions: a Brans-Dicke approach
• Fixed points of quantum gravity in extra dimensions

Cited by in corpus (5)

• The Bullet Cluster 1E0657-558 evidence shows Modified Gravity in the absence of Dark Matter
• Dynamics of the Laplace-Runge-Lenz vector in the quantum-corrected Newton gravity
• Elliptical galaxies kinematics within general relativity with renormalization group effects
• Spherically symmetric ADM gravity with variable G and Lambda(c)
• Scale-dependent cosmology from effective quantum gravity in the invariant framework