Fusion reaction of halo nuclei: A real-time wave-packet method for   three-body tunneling dynamics
  We investigate fusion cross section of a nucleus with a valence neutron, using the time-dependent wave-packet method. For a stable projectile, in which the valence neutron is tightly bound (e_n < -3 MeV), the neutron could enhance the fusion probability when the matching condition of orbital energies are satisfied. In contrast, for a halo nucleus, in which the binding energy of the neutron is very small (e_n>-1 MeV), the fusion probability is hindered by the presence of the weakly bound neutron. 
T. Nakatsukasa, M. Ito, K. Yabana, and M. Ueda