Mixtures of strongly interacting bosons in optical lattices
Abstract
We investigate the properties of strongly interacting heteronuclear boson-boson mixtures loaded in realistic optical lattices, with particular emphasis on the physics of interfaces. In particular, we numerically reproduce the recent experimental observation that the addition of a small fraction of K induces a significant loss of coherence in Rb, providing a simple explanation. We then investigate the robustness against the inhomogeneity typical of realistic experimental realizations of the glassy quantum emulsions recently predicted to occur in strongly interacting boson-boson mixtures on ideal homogeneous lattices.
Keywords
Cite
@article{arxiv.0801.3465,
title = {Mixtures of strongly interacting bosons in optical lattices},
author = {P. Buonsante and S. M. Giampaolo and F. Illuminati and V. Penna and A. Vezzani},
journal= {arXiv preprint arXiv:0801.3465},
year = {2008}
}
Comments
10 pages, 3 figures; some changes in the text and abstract have been introduced; coherence now given in terms of visibility; a couple of new reference added