Creation of a molecular condensate by dynamically melting a   Mott-insulator
  We propose creation of a molecular Bose-Einstein condensate (BEC) by loading an atomic BEC into an optical lattice and driving it into a Mott insulator (MI) with exactly two atoms per site. Molecules in a MI state are then created under well defined conditions by photoassociation with essentially unit efficiency. Finally, the MI is melted and a superfluid state of the molecules is created. We study the dynamics of this process and photoassociation of tightly trapped atoms. 
D. Jaksch, V. Venturi, J.I. Cirac, C.J. Williams, and P. Zoller