Mixtures of strongly interacting bosons in optical lattices

Details Mixtures of strongly interacting bosons in optical lattices Mixtures of strongly interacting bosons in optical lattices

2008-01-22

arxiv.org/abs/0801.3465v4

Phys. Rev. Lett. 100, 240402 (2008)

Physics

Condensed Matter

Other Condensed Matter

10 pages, 3 figures; some changes in the text and abstract have been introduced; coherence now given in terms of visibility; a

Scientific paper

10.1103/PhysRevLett.100.240402

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.

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