Bose-Hubbard models in confining potentials: Inhomogeneous mean-field theory
Bose-Hubbard models in confining potentials: Inhomogeneous mean-field theory
We present an extensive study of Mott insulator (MI) and superfluid (SF) shells in Bose-Hubbard (BH) models for bosons in optical lattices with harmonic traps. For this we apply the inhomogeneous mean-field theory developed by Sheshadri et al. [Phys. Rev. Lett. 75, 4075 (1995)]. Our results for the BH model …