1pm - 2pm: Spatial correlations in QCD at high temperature

Quantum Chromodynamics (QCD) is the fundamental theory which describes exotic systems like the quark matter created in relativistic heavy-ion collisions or shortly after the Big Bang. Even though the coupling strength decreases with the temperature due to asymptotic freedom, the interactions are not necessarily weak in the regime where chiral symmetry is restored. Either effective field theory or numerical lattice QCD is then required to understand the interactions of quarks and gluons in such a phase. Spatial correlations are an interesting class of observables which can be used to test effective theories and even provide constraints on dynamical processes. I will outline some progress and some challenges in computing such correlation functions in the framework of lattice simulations.