Producing Bose condensates using optical lattices
  We relate the entropies of ensembles of atoms in optical lattices to atoms in simple traps. We then determine which ensembles of lattice-bound atoms will adiabatically transform into a Bose condensate. This shows a feasible approach to Bose condensation without evaporative cooling. 
Maxim Olshanii (1) and David Weiss (2) ((1) University of Southern   California, (2) The Pennsylvania State University)