Specific heat of the Kelvin modes in low temperature superfluid turbulence- art. no. 212504

It is pointed out that the specific heat of helical vortex line excitations , in low temperature superfluid turbulence experiments carried out in heliu m II, can be of the same order as the specific heat of the phononic quasipa rticles. The ratio of Kelvin mode and phonon specific heats scales with L0T -(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 whi ch are of order 1-10 mK.