Charmed hadron physics in quenched anisotropic lattice QCD
  We investigate the anisotropic lattice with $O(a)$ improved quark action as a candidate of framework in which we can treat both the heavy and light quark region in the same manner and systematically reduce the systematic uncertainties. To examine applicability of anisotropic lattice, we calculate the charmed meson spectrum and decay constants in quenched approximation. We find consistent result with most advanced results on isotropic lattices. 
J. Harada, H. Matsufuru, T. Onogi and A. Sugita