The renormalization group plays an essential role in many areas of physics, both
conceptually and as a practical tool to determine the long-distance low-energy properties of …

Asymptotic safety is a theoretical proposal for the ultraviolet completion of quantum field
theories, in particular for quantum gravity. Significant progress on this program has led to a …

New physics beyond the Standard Model can give rise to stochastic gravitational-wave
backgrounds, for example, through cosmic strings. In this way, gravitational-wave searches …

We reconstruct the Lorentzian graviton propagator in asymptotically safe quantum gravity
from Euclidean data. The reconstruction is applied to both the dynamical fluctuation graviton …

A bstract Asymptotic Safety provides an elegant mechanism for obtaining a consistent high-
energy completion of gravity and gravity-matter systems. Following the initial idea by Steven …

Regular black hole spacetimes are obtained from an effective Lagrangian for quantum
Einstein gravity. The interior matter is modeled as a dust fluid, which interacts with the …

The gravitational asymptotic safety program envisions a high-energy completion of the
gravitational interactions by an interacting renormalization group fixed point, the Reuter fixed …

This paper considers the possibility that, starting from a relativistic Hermitian quantum field
theory in the ultraviolet (UV) regime, and applying a nonperturbative renormalization-group …

In this contribution, we discuss the asymptotic safety scenario for quantum gravity with a
functional renormalization group approach that disentangles dynamical metric fluctuations …

We derive the quantum effective action and the respective quantum equations of motion
from multi-graviton correlation functions in asymptotically safe quantum gravity. The fully …