Degenerate Bose-Bose mixture in a three-dimensional optical lattice
Other Condensed Matter
2008-01-29 v2
Abstract
We produce a heteronuclear quantum degenerate mixture of two bosonic species, Rb and K, in a three-dimensional optical lattice. On raising the lattice barriers, we observe the disapperance of the inference pattern of the heavier Rb, shifting toward shallower lattice depths in the presence of a minor fraction of K. This effect is sizable and requires only a marginal overlap between the two species. We compare our results with similar findings reported for Fermi-Bose mixtures and discuss the interpretation scenarios proposed to date, arguing that the explanation may be linked to the increased effective mass due to the interspecies interactions.
Keywords
Cite
@article{arxiv.0706.2781,
title = {Degenerate Bose-Bose mixture in a three-dimensional optical lattice},
author = {J. Catani and L. De Sarlo and G. Barontini and F. Minardi and M. Inguscio},
journal= {arXiv preprint arXiv:0706.2781},
year = {2008}
}