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APS » Journals » Phys. Rev. A » Volume 66 » Issue 4
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Phys. Rev. A 66, 043414 (2002) [6 pages]

Three-fluid description of the sympathetic cooling of a boson-fermion mixture

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M. Wouters, J. Tempere*, and J. T. Devreese†
Departement Natuurkunde, Universiteit Antwerpen (UIA), Universiteitsplein 1, B2610 Antwerpen, Belgium

Received 2 May 2002; published 23 October 2002

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 0.2TF 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 0.1TF can be reached.

© 2002 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevA.66.043414
DOI:
10.1103/PhysRevA.66.043414
PACS:
32.80.Pj, 05.30.Fk, 05.30.Jp

*Also at Lyman Laboratory of Physics, Harvard University, Cambridge, Massachusetts 02138.

†Also at Universiteit Antwerpen (RUCA), Groenenborgerlaan 171, B-2020 Antwerpen, Belgium and Technische Universiteit Eindhoven, P.B. 513, 5600 MB Eindhoven, the Netherlands.

 
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