How vortex clusters expand

Call us spin doctors if you must, but we’re here with more vortex news to wrap your head around: Warwick Bowen and colleagues studied how vortices in a superfluid spread out over time from an initial arrangement. They found that each and every initial configuration results in a top-hat shaped velocity-position profile. Hat tip to our friends and colleagues at FLEET!

Quantum waves travel in a slot-waveguide

In our latest publication, Glen Harris, Andreas Sawadsky, Yasmine Sfendla, Walter Wasserman, Warwick Bowen and Chris Baker suggest filling a slot waveguide with superfluid to create an ultralow-dissipation resonator for travelling acoustic and optical waves. If you are familiar with our work, that suggestion should not come as a surprise. What can we say? A layer of superfluid does make everything better. Superfluid, some might say, is the mayonnaise of quantum optics.