  Elastic and radiative heavy quark interactions with light partons are studied
with the partonic transport description BAMPS (Boltzmann Approach to
MultiParton Scatterings). After calculating the cross section of radiative
processes for finite masses in the improved Gunion-Bertsch approximation and
verifying this calculation by comparing to the exact result, we study elastic
and radiative heavy quark energy loss in a static medium of quarks and gluons.
Furthermore, the full 3+1D space-time evolution of gluons, light quarks, and
heavy quarks in ultra-relativistic heavy-ion collisions at the BNL Relativistic
Heavy-Ion Collider (RHIC) and the CERN Large Hadron Collider (LHC) are
calculated with BAMPS including elastic and radiative heavy flavor
interactions. Treating light and heavy particles on the same footing in the
same framework, we find that the experimentally measured nuclear modification
factor of charged hadrons and D mesons at the LHC can be simultaneously
described. In addition, we calculate the heavy flavor evolution with an
improved screening procedure from hard-thermal-loop calculations and confront
the results with experimental data of the nuclear modification factor and the
elliptic flow of heavy flavor particles at RHIC and LHC.
