Realistic in-medium heavy-quark potential from high statistics lattice QCD simulations

Understand

We present our first results on a direct computation of the complex in-medium heavy quark potential from realistic lattice QCD simulations.

• Ensembles with $N_\tau=12$ from the HotQCD and TUMQCD collaboration offer unprecedented high statistics, those with $N_\tau=16$ unprecedented time resolution, making possible a robust extraction of the real part from the spectral functions of Wilson line correlators.
• To this end we deploy a combination of a Bayesian reconstruction (BR method), as well as a Pad\'e-like approximation.
• We corroborate findings made on less realistic lattices that ${\rm Re}[V]$ smoothly transitions from a confining to a screened behavior at high temperatures and its values lie close to the color singlet free energies.