Drag in Bose-Fermi Mixtures
Quantum Gases
2021-03-12 v2
Abstract
We use kinetic theory to model the dynamics of a small Bose condensed cloud of heavy particles moving through a larger degenerate Fermi gas of light particles. Varying the Bose-Fermi interaction, we find a crossover between bulk and surface dominated regimes -- where scattering occurs throughout the Bose cloud, or solely on the surface. We calculate the damping and frequency shift of the dipole mode in a harmonic trap as a function of the magnetic field controlling an inter-species Feshbach resonance. We find excellent agreement between our stochastic model and the experimental studies of Cs-Li mixtures.
Cite
@article{arxiv.2008.04083,
title = {Drag in Bose-Fermi Mixtures},
author = {Kai Yen Jee and Erich J. Mueller},
journal= {arXiv preprint arXiv:2008.04083},
year = {2021}
}
Comments
10 pages, 7 figures