Demixing of bosonic mixtures in optical lattices from macroscopic to microscopic scales.
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.
Alon
Ofir E
OE
Theoretische Chemie, Physikalisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 229, D-69120 Heidelberg, Germany. ofir@pci.uni-heidelberg.de
Streltsov
Alexej I
AI
Cederbaum
Lorenz S
LS