  The impact of momentum anisotropy on the heavy quark transport coefficients
due to collisional and radiative processes in the QCD medium has been studied
within the ambit of kinetic theory. Anisotropic aspects (momentum) are
incorporated into the heavy quark dynamics through the non-equilibrium momentum
distribution function of quarks, antiquarks, and gluons. These non-equilibrium
distribution functions that encode the physics of momentum anisotropy and
turbulent chromo-fields have been obtained by solving the ensemble-averaged
diffusive Vlasov-Boltzmann equation. The momentum dependence of heavy quark
transport coefficients in the medium is seen to be sensitive to the strength of
the anisotropy for both collisional and radiative processes. In addition, the
collisional and radiative energy loss of the heavy quark in the anisotropic hot
QCD medium have been analyzed. The effects of anisotropy on the drag and
diffusion coefficients are observed to have a visible impact on the nuclear
suppression factor both at the RHIC and LHC.
