Visualization of Kelvin waves on quantum vortices

Video credit: E. Fonda, D. P. Meichle, N. T. Ouellette, S. Hormoz, K. R. Sreenivasan, D. P. Lathrop In superfluid helium, vorticity is quantized and constrained on linelike phase singularities, called quantum or quantized vortices. By visualizing the motion of submicron frozen particles in superfluid 4He, we directly observe for the first time the helical Kelvin waves excited after quantized vortex reconnections. We compare the data with selfsimilar solutions of vortex filament models. We report th br, br,