Researchers use silicon nanoparticles to visualize coalescence of quantized vortices that occur in superfluid helium
Scientists from the Graduate School of Engineering Science at Osaka University have shown how silicon nanoparticles can become trapped inside the vortices that form inside superfluid helium. This work opens up new possibilities in optical research for other quantum properties of superfluid helium, such as the optical manipulation of quantized vortices due to the strong interaction between light and silicon nanoparticles.