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arXiv · 1803.11494

Transition from supersonic to subsonic waves in superfluid Fermi gases

Senne Van Loon·Wout Van Alphen·Jacques Tempere·Hadrien Kurkjian
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Abstract

We study the propagation of dispersive waves in superfluid Fermi gases in the BEC-BCS crossover. Unlike in other superfluid systems, where dispersive waves have already been studied and observed, Fermi gases can exhibit a subsonic dispersion relation for which the dispersive wave pattern appears at the tail of the wave front. We show that this property can be used to distinguish between a subsonic and a supersonic dispersion relation at unitarity.

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Senne Van Loon, Wout Van Alphen, Jacques Tempere, Hadrien Kurkjian. 2018-03-30. Transition from supersonic to subsonic waves in superfluid Fermi gases. https://doi.org/10.1103/physreva.98.063627

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