Inhomogeneous State of Few-Fermion Superfluids

P. O. Bugnion, J. A. Lofthouse, and G. J. Conduit
Phys. Rev. Lett. 111, 045301 – Published 22 July 2013

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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  • Received 3 May 2013

DOI:https://doi.org/10.1103/PhysRevLett.111.045301

© 2013 American Physical Society

Authors & Affiliations

P. O. Bugnion, J. A. Lofthouse, and G. J. Conduit

  • Cavendish Laboratory, J.J. Thomson Avenue, Cambridge CB3 0HE, United Kingdom

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Issue

Vol. 111, Iss. 4 — 26 July 2013

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