Journal of Physics Conference Series
Anderson localization in atomic mixtures
K. Ziegler, Oleksandr Fialko
Abstract
A mixture of two types of atoms in an optical lattice is studied. Assuming that one type of atoms is much heavier than the other, the complex interplay of the two species leads to a correlated distribution of heavy atoms and to diffusion or Anderson localization of the light atoms. The latter depends on the distribution of the heavy atoms, where diffusion appears only at low temperatures.