Physics – Condensed Matter – Other Condensed Matter
Scientific paper
2006-09-23
Phys. Rev. A 77, 023608 (2008)
Physics
Condensed Matter
Other Condensed Matter
4 pages, 5 figures
Scientific paper
10.1103/PhysRevA.77.023608
We investigate the properties of trapped Bose-Fermi mixtures for experimentally relevant parameters in one dimension. The effect of the attractive Bose-Fermi interaction onto the bosons is to deepen the parabolic trapping potential, and to reduce the bosonic repulsion in higher order, leading to an increase in bosonic coherence. The opposite effect was observed in ${}^{87}$Rb - ${}^{40}$K experiments, most likely due to a sharp rise in temperature. We also discuss low-temperature features, such as a bosonic Mott insulator transition driven by the fermion concentration, and the formation of composite particles such as polarons and molecules.
Kollath Corinna
Pollet Lode
Schollwoeck Ulrich
Troyer Matthias
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