Mixtures of strongly interacting bosons in optical lattices

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 4...

Full description

Saved in:
Bibliographic Details
Published inPhysical review letters Vol. 100; no. 24; p. 240402
Main Authors Buonsante, P, Giampaolo, S M, Illuminati, F, Penna, V, Vezzani, A
Format Journal Article
LanguageEnglish
Published United States 20.06.2008
Online AccessGet more information

Cover

More Information
Summary: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 41K induces a significant loss of coherence in 87Rb, 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.
ISSN:0031-9007
DOI:10.1103/physrevlett.100.240402