Publication Date
2008
Journal or Book Title
Physics Review Letters
Abstract
On the basis of a recently proposed scenario of the transformation of the Kolmogorov cascade into the Kelvin-wave cascade, we develop a theory of low-temperature cutoff. The theory predicts a specific behavior of the quantized vortex line density, L, controlled by the frictional coefficient, α(T)≪1, responsible for the cutoff. The curve ln L(lnα) is found to directly reflect the structure of the cascade, revealing four qualitatively distinct wave number regions. Excellent agreement with a recent experiment by Walmsley et al. [Phys. Rev. Lett. 99, 265302 (2007)]—in which L(T) has been measured down to T∼0.08 K—implies that the scenario of low-temperature superfluid turbulence is now experimentally validated and allows to quantify the Kelvin-wave cascade spectru
Volume
100
Issue
19
Recommended Citation
Kozik, E and Svistunov, Boris, "Scanning Superfluid-Turbulence Cascade by its Low-Temperature Cutoff" (2008). Physics Review Letters. 1202.
Retrieved from https://scholarworks.umass.edu/physics_faculty_pubs/1202
Comments
This is the pre-published version harvested from ArXiv. The published version is located at http://prl.aps.org/abstract/PRL/v100/i19/e195302