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APS » Journals » Phys. Rev. A » Volume 67 » Issue 3
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Phys. Rev. A 67, 031601(R) (2003) [4 pages]

Superfluid transition in quasi-two-dimensional Fermi gases

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D. S. Petrov1,2, M. A. Baranov2,3, and G. V. Shlyapnikov1,2,4
1FOM Institute for Atomic and Molecular Physics, Kruislaan 407, 1098 SJ Amsterdam, The Netherlands
2Russian Research Center Kurchatov Institute, Kurchatov Square, 123182 Moscow, Russia
3Institut für Theoretische Physik, Universität Hannover, D-30167 Hannover, Germany
4Laboratoire Kastler Brossel, 24 rue Lhomond, F-75231 Paris Cedex 05, France

Received 10 December 2002; published 11 March 2003

We show that atomic Fermi gases in quasi-two-dimensional (2D) geometries are promising for achieving superfluidity. In the regime of BCS pairing for weak attraction, we calculate the critical temperature Tc and analyze possibilities of increasing the ratio of Tc to the Fermi energy. In the opposite limit, where a strong coupling leads to the formation of weakly bound quasi-2D dimers, we find that their Bose-Einstein condensate will be stable on a long time scale.

© 2003 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevA.67.031601
DOI:
10.1103/PhysRevA.67.031601
PACS:
03.75.Ss, 05.30.Fk
 
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