Speaker
Juhee Hong
Description
We discuss the non-equilibrium Green’s function approach to heavy-quark transport based on the Kadanoff-Baym equation. Using hard-thermal-loop perturbation theory, the self-energy terms are calculated up to next-to-leading order. In the on-shell limit, the kinetic equation reduces to a Boltzmann equation that accounts for elastic scattering and gluon emission from a single scattering. Numerical results indicate that the off-shell and memory effects in quark-gluon plasmas influence heavy-quark transport, particularly near the critical temperature.