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arXiv · 1008.4380

Vortex density waves and high-frequency second sound in superfluid turbulence hydrodynamics

David Jou·Maria Stella Mongiovi'and Michele Sciacca
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Abstract

In this paper we show that a recent hydrodynamical model of superfluid turbulence describes vortex density waves and their effects on the speed of high-frequency second sound. In this frequency regime, the vortex dynamics is not purely diffusive, as for low frequencies, but exhibits ondulatory features, whose influence on the second sound is here explored.

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David Jou, Maria Stella Mongiovi'and Michele Sciacca. 2010-08-25. Vortex density waves and high-frequency second sound in superfluid turbulence hydrodynamics. https://doi.org/10.1016/j.physleta.2007.03.078

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