Modelling a Neutron Star in Superfluid Helium

We discuss a lab experiment intended to model neutron star behavior. Superfluid helium is encased in a container that can rotate freely. The container is spun up, then monitored as it gradually slows down. Pinned vortices inside which release and repin can produce rotational glitches mimicking those of pulsars. We discuss the experimental design and the expected measurement sensitivity. The design is based on similar work from 40 years ago. We revisit the experiment now because of advances in the speed of computers and videocameras, as well as in the theoretical modelling of neutron stars.