  We study the chiral dynamics of vector mesons in two-flavor QCD in vacuum by
utilizing a functional renormalization group approach. This allows us to
capture the dynamical transition from the quark-gluon phase at high energies to
the hadronic phase at low energies without the necessity of model parameter
tuning. We use this to analyze the scaling of vector meson masses towards the
chiral symmetry breaking scale, the decoupling of the mesons at high energies
and the validity of vector meson dominance.
