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arXiv · 1604.04996

Persistent superfluid flow arising from the He-McKellar-Wilkens effect in molecular dipolar condensates

A. A. Wood·B. H. J. McKellar·A. M. Martin
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Abstract

We show that the He-McKellar-Wilkens effect can induce a persistent flow in a Bose-Einstein condensate of polar molecules confined in a toroidal trap, with the dipolar interaction mediated via an electric dipole moment. For Bose-Einstein condensates of atoms with a magnetic dipole moment, we show that although it is theoretically possible to induce persistent flow via the Aharonov-Casher effect, the strength of electric field required is prohibitive. We also outline an experimental geometry tailored specifically for observing the He-McKellar-Wilkens effect in toroidally-trapped condensates.

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A. A. Wood, B. H. J. McKellar, A. M. Martin. 2016-06-21. Persistent superfluid flow arising from the He-McKellar-Wilkens effect in molecular dipolar condensates. https://doi.org/10.1103/physrevlett.116.250403

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