Weak vs. Strong Coupling in a Feshbach-Resonant Gas of Degenerate Fermi Atoms

TL;DR

This paper discusses the differences between weak and strong coupling regimes in a Feshbach-resonant gas of degenerate Fermi atoms, emphasizing the importance of correct density calculations for interpreting experimental results.

Contribution

It clarifies the impact of density calculations on the interpretation of coupling regimes in Feshbach-resonant Fermi gases.

Findings

Incorrect density led to wrong classification of experiments as weakly-coupled.

Corrected calculations suggest different coupling behavior.

Highlights the importance of accurate density measurements in experimental analysis.

Abstract

This paper has been withrawn because one of us (MM) calculated the wrong density for the JILA experiments, leading to the incorrect conclusion that said experiments could be considered as weakly-coupled and, thus, molecule rich.