Three-fluid description of the sympathetic cooling of a boson-fermion mixture
Michiel Wouters, Jacques Tempere, J. T. Devreese
We present a model for sympathetic cooling of a mixture of fermionic and bosonic atomic gases in harmonic traps, based on a three-fluid description. The model confirms the experimentally observed cooling limit of about ${0.2T}_{F}$ when only bosons are pumped. We propose sequential cooling---pumping first of bosons and afterward fermions---as a way to obtain lower temperatures. For this scheme, our model predicts that temperatures less than ${0.1T}_{F}$ can be reached.
arXiv:cond-mat/0301544•Physical Review A•Oct 23, 2002•14 citations