arXiv:0804.1759 · Physical Review A

Trapped phase-segregated Bose-Fermi mixtures and their collective excitations

Bert Van Schaeybroeck, Achilleas Lazarides

Published Mar 17, 2009• 15 citations

Abstract

Recent progress in the field of ultracold gases has allowed for the creation of phase-segregated Bose-Fermi systems. We present a theoretical study of their collective excitations at zero temperature. As the fraction of fermion-to-boson particle number increases, the collective mode frequencies take values between those for a fully bosonic and those for a fully fermionic cloud, with damping in the intermediate region. This damping is caused by fermions which are resonantly driven at the interface.

DOI: 10.1103/physreva.79.033618

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