Solid-body rotation and giant circulations in coupled condensates

This paper considers a rotating two-component condensate trapped by a harmonic plus Gaussian potential. The ability to tune the parameters to create disk-shaped or annular components, or a combination, means that different rotational regimes can appear in different components. We consider and report on these cases where there is either solid-body rotation in both components, a solid-body rotation in one component and a giant circulation in the other, or a giant circulation in both components.