Dipolar oscillations in a quantum degenerate Fermi-Bose atomic mixture

2002/11/04 by F. Ferlaino, R. J. Brecha, P. Hannaford +4
Physics and Astronomy · #cond-mat.soft

paper · pdf

published as J. Opt. B: Quantum Semiclass. Opt. 5 No 2 (April 2003) S3-S8 · 13 pages, 6 figures. Sudmitted to the Journal of Optics B special issue on the 7th International Workshop on Atom Optics and Interferometry

arxiv created 2002/11/04 · arxiv updated 2009/11/30

Abstract

We study the dynamics of coupled dipolar oscillations in a Fermi-Bose mixture of ⁴⁰K and ⁸⁷Rb atoms. This low-energy collective mode is strongly affected by the interspecies interactions. Measurements are performed in the dynamical and quantum degenerate regimes and evidence the crucial role of the statistical properties of the mixture. At the onset of quantum degeneracy, we investigate the role of Pauli blocking and superfluidity for K and Rb atoms, respectively, resulting in a change in the collisional interactions.

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