Three-Fluid Description of the Sympathetic Cooling of a Boson-Fermion Mixture

Abstract

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 0.2 T_F when only bosons are pumped. We propose sequential cooling -- first pumping of bosons and afterwards fermions -- as a way to obtain lower temperatures. For this scheme, our model predicts that temperatures less than 0.1 T_F can be reached.

9 pages, 6 figures

References in corpus (2)

• A quasi-pure Bose-Einstein condensate immersed in a Fermi sea
• Degenerate fermion gas heating by hole creation

Cited by in corpus (8)

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• Limits of sympathetic cooling of fermions by zero temperature bosons due to particle losses
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• Effective microscopic models for sympathetic cooling of atomic gases
• Limits of sympathetic cooling of fermions: The role of the heat capacity of the coolant
• Sympathetic cooling of trapped fermions by bosons in the presence of particle losses
• Velocity and Heat Flow in a Composite Two Fluid System