Abstract:
The Josephson current-phase relation for a circular orifice forming a weak-link connecting phase-biased regions of superfluid 3He-B is calculated from self-consistent numerical solutions of the quasiclassical Eilenberger theory. For mesoscopic orifices with R> 10 ξ0) dissipation onsets via phase slips corresponding to the nucleation of vortex rings at the edge of the orifice.
Contributed Paper for the Proceedings of the 19th International Conference on Low Temperature Physics, Brighton, UK.
Paper: [PDF]