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

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

2010-08-25

arxiv.org/abs/1008.4380v1

Physics Letters A 368 (2007) 7

Physics

Condensed Matter

Other Condensed Matter

8 pages

Scientific paper

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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