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26 April 2024

» arxiv » cond-mat/0506183

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Simple Mean-Field Theory for a Zero-Temperature Fermi Gas at a Feshbach Resonance
Juha Javanainen ; Marijan Kostrun ; Matt Mackie ; Andrew Carmichael ;
Date:	7 Jun 2005
Subject:	Superconductivity \| cond-mat.supr-con
Abstract:	We present a simple two-channel mean field theory for a zero-temperature two-component Fermi gas in the neighborhood of a Feshbach resonance. Our results agree with recent experiments on the bare-molecule fraction as a function of magnetic field [Partridge et al., cond-mat/0505353]. Even in this strongly-coupled gas of Li-6, the experimental results depend on the structure of the molecules formed in the Feshbach resonance and, therefore, are not universal.
Source:	arXiv, cond-mat/0506183
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