Top-hats emerge in a chiral vortex fluid

Our latest paper was recently published in Physical Review Research. We studied the collective dynamics of many vortices in a two-dimensioanl superfluid to learn more about their chaotic behaviour.

We demonstrate that any cluster of same-sign vortices expands to form a ‘Rankine vortex’, which then expands self-similarly in time.

We use a relatively new theory that describes collections of vortices as a fluid, i.e., we solve the hydrodynamics of vortex fluids. In addition to the analytical result, we provide numerical and experimental evidence to support our findings.

Check out the summary I wrote that appeared in phys.org.

A very similar article can be found in Scimex, where we better show the ‘top-hat’ nature.

Comments are very welcome, and hopefully we can build our knowledge upon this work!

Oliver Stockdale
Oliver Stockdale
PhD student in Physics

My research interests include ultracold quantum gases, entanglement detection, entropic uncertainty relations, and superfluidity