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BCS-BEC crossover at finite temperature for superfluid trapped Fermi atoms.

Authors
Type
Published Article
Journal
Physical review letters
Publication Date
Volume
92
Issue
22
Pages
220404–220404
Identifiers
PMID: 15245204
Source
Medline
License
Unknown

Abstract

We consider the BCS-BEC (Bose-Einstein-condensate) crossover for a system of trapped Fermi atoms at finite temperature, both below and above the superfluid critical temperature, by including fluctuations beyond mean field. We determine the superfluid critical temperature and the pair-breaking temperature as functions of the attractive interaction between Fermi atoms, from the weak- to the strong-coupling limit (where bosonic molecules form as bound-fermion pairs). Density profiles in the trap are also obtained for all temperatures and couplings.

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