Inhomogeneous state of few-fermion superfluids

P. O. Bugnion; J. A. Lofthouse; G. J. Conduit

doi:10.1103/physrevlett.111.045301

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arXiv · 1305.3717

Inhomogeneous state of few-fermion superfluids

P. O. Bugnion·J. A. Lofthouse·G. J. Conduit

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Abstract

The few-fermion atomic gas is an ideal setting to explore inhomogeneous superfluid pairing analogous to the Larkin-Ovchinnikov state. Two up and one down-spin atom is the minimal configuration that displays an inhomogeneous pairing density whereas imbalanced systems containing more fermions present a more complex pairing topology. With more than eight atoms trapped the system approaches the macroscopic superfluid limit. An oblate trap with a central barrier offers a direct experimental probe of pairing inhomogeneity.

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P. O. Bugnion, J. A. Lofthouse, G. J. Conduit. 2013-08-06. Inhomogeneous state of few-fermion superfluids. https://doi.org/10.1103/physrevlett.111.045301

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