Elucidating the law of vortex diffusion in quantum turbulence

A research group of Professor Makoto Tsubota and Specially Appointed Assistant Professor Satoshi Yui, both from the Graduate School of Science and the Nambu Yoichiro Institute of Theoretical and Experimental Physics, Osaka Metropolitan University, in cooperation with their colleagues from Florida State University and Keio University, conducted a systematic numerical study of vortex diffusion in quantum turbulence in superfluid helium-4 (He II) at extremely low temperatures, near absolute zero (−273°C), and compared the results with experimental observations.