Center-of-mass motion and cross-channel coupling in time-dependent   Hartree-Fock theory
  We provide a discussion of issues related to the center-of-mass motion and cross-channel coupling in applications of the time-dependent Hartree-Fock (TDHF) theory to heavy-ion collisions. We find that the entrance channel dynamics of a heavy-ion collision as described by TDHF does not seem to be significantly influenced by these effects, whereas the long-time evolution may be less reliable. 
A.S. Umar and V.E. Oberacker