New universal quantities characterizing inhomogeneous Fermi gases at the Feshbach resonance

New universal quantities characterizing inhomogeneous Fermi gases at the Feshbach resonance

Gradient corrections to the local density approximation are formulated for the density and the gap function in case of a spin-$1/2$ Fermi gas at unitarity. The related new universal numbers are calculated within the framework of the mean-field BCS model.

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Bibliographic Details
Published in:Europhysics letters Vol. 80; no. 5; pp. 50002 - 50002(6)
Main Authors: Csordas, A, Almasy, O, Szpfalusy, P
Format: Journal Article
Language:English
Published: IOP Publishing 01-12-2007
EDP Sciences
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Summary:Gradient corrections to the local density approximation are formulated for the density and the gap function in case of a spin-$1/2$ Fermi gas at unitarity. The related new universal numbers are calculated within the framework of the mean-field BCS model.
Bibliography:ark:/67375/80W-6LC5GQS8-Z
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publisher-ID:epl10574
ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0295-5075
0749-1581
1286-4854
1097-458X
DOI:10.1209/0295-5075/80/50002