Big bang simulation in superfluid 3He-B -- Vortex nucleation in neutron-irradiated superflow

V. M. H. Ruutu, V. B. Eltsov, A. J. Gill +6

We report the observation of vortex formation upon the absorption of a thermal neutron in a rotating container of superfluid ${}^3$He-B. The nuclear reaction n + ${}^3$He = p + ${}^3$H +…