Physics – Condensed Matter – Other Condensed Matter
Scientific paper
2007-03-02
Phys. Rev. B 77, 060502 (2008)
Physics
Condensed Matter
Other Condensed Matter
4 RevTex pages, 1 figure. Quantitative analysis of the regime 2 has been revised
Scientific paper
10.1103/PhysRevB.77.060502
As long as vorticity quantization remains irrelevant for the long-wave physics, superfluid turbulence supports a regime macroscopically identical to the Kolmogorov cascade of a normal liquid. At high enough wavenumbers, the energy flux in the wavelength space is carried by individual Kelvin-wave cascades on separate vortex lines. We analyze the transformation of the Kolmogorov cascade into the Kelvin-wave cascade, revealing a chain of three distinct intermediate cascades, supported by local-induction motion of the vortex lines, and distinguished by specific reconnection mechanisms. The most prominent qualitative feature predicted is unavoidable production of vortex rings of the size of the order of inter-vortex distance.
Kozik Evgeny
Svistunov Boris
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