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Strongly Interacting Fermi Gases of Atoms Confined in a Harmonic Trap

Yeong E. Kim·Alexander L. Zubarev
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Abstract

Dynamics of strongly interacting Fermi gases, consisting of a 50-50 mixture of two different fermionic species, is investigated. For the equation of state we consider a Padé [2/2] approximations, which gives the weak-coupling perturbative formula (up to 4th order) in the low density regime, the unitary-limit Monte Carlo result in the high density regime, and reproduces the 4-fermion prediction for dimer-dimer scattering length in the BEC region. We use a time-dependent LDA to derive various properties of the Fermi gas under a harmonic confinement and compare them with the data of very recent experiments of 6Li atoms across a Feshbach resonance.

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Yeong E. Kim, Alexander L. Zubarev. 2004-08-12. Strongly Interacting Fermi Gases of Atoms Confined in a Harmonic Trap. https://arxiv.org/abs/cond-mat/0408283

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