Physics Faculty Publications

Title

Dipolar oscillations in a quantum degenerate Fermi–Bose atomic mixture

Document Type

Article

Publication Date

2003

Publication Source

Journal of Optics B: Quantum and Semiclassical Optics

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 classical and quantum degenerate regimes and reveal 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.

Inclusive pages

S3-S8

ISBN/ISSN

1464-4266

Comments

The authors acknowledge useful discussions with A Simoni. This work was supported by MIUR, by the EC under contract HPRICT1999-00111, by INFM, PRA ‘Photonmatter’ and by the European Science Foundation through the ‘BEC2000+’ programme.

Publisher

IOP Publishing

Volume

5

Peer Reviewed

yes

Keywords

Bose-Einstein condensation, degenerate Fermi gas, atomic collisions