Equilibration Dynamics of Strongly Interacting Bosons in 2D Lattices   with Disorder
  Motivated by recent optical lattice experiments [J.-y. Choi et al., Science 352, 1547 (2016)], we study the dynamics of strongly interacting bosons in the presence of disorder in two dimensions. We show that Gutzwiller mean-field theory (GMFT) captures the main experimental observations, which are a result of the competition between disorder and interactions. Our findings highlight the difficulty in distinguishing glassy dynamics, which can be captured by GMFT, and many-body localization, which cannot be captured by GMFT, and indicate the need for further experimental studies of this system. 
Mi Yan, Hoi-Yin Hui, Marcos Rigol, Vito W. Scarola
cond-mat.quant-gas