 Asymptotic safety in quantum gravity

Asymptotic safety is a concept in quantum gravity that aims to provide a consistent framework for a theory of quantum gravity. The idea originates from the field of quantum field theory and is particularly relevant in the context of non-renormalizable theories. In general, quantum field theories can encounter problems at high energies or short distances, manifesting as divergences that cannot be easily handled (often referred to as non-renormalizability).