Elastic theory of Normal-Superfluid Boundary in trapped Fermi Gases

Details Elastic theory of Normal-Superfluid Boundary in trapped Fermi Gases Elastic theory of Normal-Superfluid Boundary in trapped Fermi Gases

2008-02-14

arxiv.org/abs/0802.2083v1

Physics

Condensed Matter

Other Condensed Matter

4 pages, 3 figures (7 subfigures)

Scientific paper

By modeling the normal-superfluid boundary in a trapped polarized Fermi gas as an elastic membrane, we calculate the atomic density profile. For small trapping anisotropy, we find that the superfluid-normal boundary remains approximately elliptical, and has an aspect ratio different from that of the trap. For very prolate clouds the boundary becomes distorted into a capsule-like shape. We present an analytic explanation of this shape.

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