title: Inhomogeneous atomic Bose-Fermi mixtures in cubic lattices.
abstract: We determine the ground state properties of inhomogeneous mixtures of bosons and fermions in cubic lattices and parabolic confining potentials. For finite hopping we determine the domain boundaries between Mott-insulator plateaux and hopping-dominated regions for lattices of arbitrary dimension within mean-field and perturbation theory. The results are compared with a new numerical method that is based on a Gutzwiller variational approach for the bosons and an exact treatment for the fermions. The findings can be applied as a guideline for future experiments with trapped atomic Bose-Fermi mixtures in optical lattices.
authors.affiliation: Institut für Physik, Universität Potsdam, Am Neuen Palais 10, D-14469 Potsdam, Germany.
authors.forename: M
authors.initials: M
authors.lastname: Cramer
authors.forename: J
authors.initials: J
authors.lastname: Eisert
authors.forename: F
authors.initials: F
authors.lastname: Illuminati