Figure 5.

Magnitude of the order parameter, Σ_{i = 1,2,3}Σ_{j = 1,2,3}|A_ij|² in the two types of vortex cores of ³He-B: double-core vortex (Left) and A-phase-core vortex (Right). The magnitude is normalized to unity in bulk ³He-B and has a minimum value of 0.5 in the two cores of the double-core vortex. The xy-plane is perpendicular to the axis of rotation. Vorticity is concentrated into regions where the order parameter is suppressed. The dimensions of the areas shown are on the order of 1 μm. Figure based on calculations in ref. 45.