Temperature suppression of Kelvin-wave turbulence in superfluids
Abstract
Kelvin waves propagating on quantum vortices play a crucial role in the phenomenology of energy dissipation of superfluid turbulence. Previous theoretical studies have consistently focused on the zero-temperature limit of the statistical physics of Kelvin-wave turbulence. In this letter, we go beyond this athermal limit by introducing a small but finite temperature in the form of non-zero mutual friction dissipative force; A situation regularly encountered in actual experiments of superfluid turbulence. In this case we show that there exists a new typical length-scale separating a quasi-inertial range of Kelvin wave turbulence from a far dissipation range. The letter culminates with analytical predictions for the energy spectrum of the Kelvin-wave turbulence in both of these regimes.
Cite
@article{arxiv.1205.0461,
title = {Temperature suppression of Kelvin-wave turbulence in superfluids},
author = {Laurent Boué and Victor L'vov and Itamar Procaccia},
journal= {arXiv preprint arXiv:1205.0461},
year = {2015}
}