Specific heat of the Kelvin modes in low temperature superfluid turbulence

Details Specific heat of the Kelvin modes in low temperature superfluid turbulence Specific heat of the Kelvin modes in low temperature superfluid turbulence

2001-02-01

arxiv.org/abs/cond-mat/0102020v1

Phys. Rev. B Vol. 63, 212504 (2001)

Physics

Condensed Matter

3 pages, 1 figure

Scientific paper

10.1103/PhysRevB.63.212504

It is pointed out that the specific heat of helical vortex line excitations, in low temperature superfluid turbulence experiments carried out in helium II, can be of the same order as the specific heat of the phononic quasiparticles. The ratio of Kelvin mode and phonon specific heats scales with L_0 T^{-5/2}, where L_0 represents the smoothed line length per volume within the vortex tangle, such that the contribution of the vortex mode specific heat should be observable for L_0 = 10^6-10^8 cm^{-2}, and at temperatures which are of order 1-10 mK.

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