Efficient and robust initialization of a qubit register with fermionic   atoms
  We show that fermionic atoms have crucial advantages over bosonic atoms in terms of loading in optical lattices for use as a possible quantum computation device. After analyzing the change in the level structure of a non-uniform confining potential as a periodic potential is superimposed to it, we show how this structure combined with the Pauli principle and fermion degeneracy can be exploited to create unit occupancy of the lattice sites with very high efficiency. 
Luciano Viverit, Chiara Menotti, Tommaso Calarco and Augusto Smerzi