Superfluid shells for trapped fermions with mass and population imbalance

Details Superfluid shells for trapped fermions with mass and population imbalance Superfluid shells for trapped fermions with mass and population imbalance

2006-07-26

arxiv.org/abs/cond-mat/0607664v1

Phys. Rev. A 74, 031604(R) (2006)

Physics

Condensed Matter

Other Condensed Matter

4 pages, 3 figures

Scientific paper

10.1103/PhysRevA.74.031604

We map out the phase diagram of strongly interacting fermions in a potential trap with mass and population imbalance between the two spin components. As a unique feature distinctively different from the equal-mass case, we show that the superfluid here forms a shell structure which is not simply connected in space. Different types of normal states occupy the trap regions inside and outside this superfluid shell. We calculate the atomic density profiles, which provide an experimental signature for the superfluid shell structure.

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