Trapped fermions with density imbalance in the BEC limit

Details Trapped fermions with density imbalance in the BEC limit Trapped fermions with density imbalance in the BEC limit

2005-12-15

arxiv.org/abs/cond-mat/0512354v1

PRL 96, 150404 (2006)

Physics

Condensed Matter

Superconductivity

5 pages, 4 figures

Scientific paper

10.1103/PhysRevLett.96.150404

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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