arXiv:physics/0104089 · Physical Review A

Collective modes in a dilute Bose-Fermi mixture

Sungkit Yip

Published Jul 18, 2001• 53 citations

Abstract

Here we study the collective excitations of a dilute spin-polarized Bose-Fermi mixture at zero temperature, considering, in particular, the features arising from the interaction between the two species. We show that a propagating zero-sound mode is possible for the fermions even when they do not interact among themselves.

DOI: 10.1103/physreva.64.023609

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