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

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

2008-12-16

arxiv.org/abs/0812.2963v1

Phys. Rev. A 79, 041603(R) (2009)

Physics

Condensed Matter

Other Condensed Matter

4 pages, 2 figures

Scientific paper

10.1103/PhysRevA.79.041603

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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