Trapped fermions with density imbalance in the BEC limit

P. Pieri; G. C. Strinati

doi:10.1103/physrevlett.96.150404

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arXiv · cond-mat/0512354

Trapped fermions with density imbalance in the BEC limit

P. Pieri·G. C. Strinati

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Abstract

We analyze the effects of imbalancing the populations of two-component trapped fermions, in the BEC limit of the attractive interaction between different fermions. Starting from the gap equation with two fermionic chemical potentials, we derive a set of coupled equations that describe composite bosons and excess fermions. We include in these equations the processes leading to the correct dimer-dimer and dimer-fermion scattering lengths. The coupled equations are then solved in the Thomas-Fermi approximation to obtain the density profiles for composite bosons and excess fermions, which are relevant to the recent experiments with trapped fermionic atoms

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P. Pieri, G. C. Strinati. 2005-12-15. Trapped fermions with density imbalance in the BEC limit. https://doi.org/10.1103/physrevlett.96.150404

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