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arXiv · 0812.2963

Paired states in spin-imbalanced atomic Fermi gases in one dimension

Paata Kakashvili·C. J. Bolech
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Abstract

A growing expertise to engineer, manipulate and probe different cold-atom analogs of electronic condensed matter systems allows to probe properties of exotic pairing. We study paired states of spin-imbalanced ultracold atomic system of fermions with attractive short-range interactions in one-dimensional traps. Calculations are done using the Bethe Ansatz technique and the trap is incorporated into the solution via a local density approximation. The thermodynamic-Bethe-Ansatz equations are solved numerically and different local density profiles are calculated for zero and finite temperatures. A procedure to identify the homogeneous-system phase diagram using local density profiles in the trap is also proposed. Such scheme would be immediately useful for the experiments.

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Paata Kakashvili, C. J. Bolech. 2008-12-16. Paired states in spin-imbalanced atomic Fermi gases in one dimension. https://doi.org/10.1103/physreva.79.041603

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