Atomic Fermi-Bose mixtures in inhomogeneous and random lattices: From   Fermi glass to quantum spin glass and quantum percolation
  We investigate atomic Fermi-Bose mixtures in inhomogeneous and random optical lattices in the limit of strong atom-atom interactions. We derive the effective Hamiltonian describing the dynamics of the system and discuss its low temperature physics. We demonstrate possibility of controlling the interactions at local level in inhomogeneous but regular lattices. Such a control leads to the achievement of Fermi glass, quantum Fermi spin glass, and quantum percolation regimes involving bare and/or composite fermions in random lattices. 
Anna Sanpera (Institut fur Theoretische Physik, Institut de Ciences   Fotoniques), Adrian Kantian (Institut fur Theoretische...