Abstract:This talk will elucidate specific features of superfluid behavior from a field theoretic viewpoint. The focus will be on issues regarding spontaneous decay of superfluid vortices in dense quark matter. Superfluid vortices in the color-flavor-locked (CFL) phase of dense quark matter are known to be energetically disfavored as compared to well separated triplets of semi-superfluid color flux tubes. I will provide results which will identify regions in parameter space where the superfluid vortex spontaneously decays. Numerical simulation results of the decay process will also be shown.