title: Demixing of bosonic mixtures in optical lattices from macroscopic to microscopic scales.
abstract: Mixtures of cold bosonic atoms in optical lattices undergo demixing on different length scales with increasing interspecies repulsion. As a general rule, the stronger the intraspecies interactions, the shorter is this length scale. The wealth of phenomena is documented by illustrative examples on both superfluids and Mott insulators.
authors.affiliation: Theoretische Chemie, Physikalisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 229, D-69120 Heidelberg, Germany. ofir@pci.uni-heidelberg.de
authors.forename: Ofir E
authors.initials: OE
authors.lastname: Alon
authors.forename: Alexej I
authors.initials: AI
authors.lastname: Streltsov
authors.forename: Lorenz S
authors.initials: LS
authors.lastname: Cederbaum