Acoustic turbulence of second sound waves in superfluid helium
V.B. Efimov Institute of Solid State Physics, Russian Academy of Sciences, Akademika Osip'yana str. 2, Chernogolovka, Moscow Region, 142432, Russian Federation
The anomalously strong amplitude dependence of the second sound wave velocity allows an experimental framework to study the behavior of nonlinear waves in a linearly dispersive medium; to investigate the processes of energy transformation from single frequency harmonic pumping into high frequency dissipation edge of spectrum; and to get insight into the formation and decay dynamics of direct and inverse energy cascades.
Keywords: superfluid helium, acoustic turbulence, turbulence, second sound, nonlinear waves PACS:47.27.Cn, 47.37.+q, 67.25.dg, 67.25.dt (all) DOI:10.3367/UFNe.2018.03.038317 URL: https://ufn.ru/en/articles/2018/10/a/ Citation: Efimov V B "Acoustic turbulence of second sound waves in superfluid helium" Phys. Usp.61 929–951 (2018)