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 …

In this paper, we present an overview on recent progress in studies of QCD at finite
temperature and densities within the functional renormalization group (fRG) approach. The …

We report on broadly based systematic investigations of the modeling components for open
heavy-flavor diffusion and energy loss in strongly interacting matter in their application to …

This report summarizes the presentations and discussions during the Rapid Reaction Task
Force “Dynamics of critical fluctuations: Theory–phenomenology–heavy-ion collisions” …

The asymptotic safety scenario in gravity is accessed within the systematic vertex expansion
scheme for functional renormalisation group flows put forward in Christiansen et al.(Phys …

We review the current state of research on electromagnetic probes in the context of heavy-
ion collisions. The focus is on thermal photons and dileptons which provide unique insights …

We put forward a functional renormalization group approach for the direct computation of
real time correlation functions, also applicable at finite temperature and density. We …

In this work we present a direct comparison of three different numerical analytic continuation
methods: the Maximum Entropy Method, the Backus–Gilbert method and the Schlessinger …

Heavy-ion collisions at small beam energies have the potential to reveal the rich phase
structure of QCD at low temperature and nonzero density. In this case spatially modulated …

The functional renormalization group (FRG) approach is a powerful tool for studies of a large
variety of systems, ranging from statistical physics over the theory of the strong interaction to …