  Extending the quantum effective approach of Son and Nicolis and incorporating
dissipation, we develop a MIS formalism for describing a superfluid out of
equilibrium by including the Goldstone boson and the condensate together with
the hydrodynamic modes as the effective degrees of freedom. We find that the
evolution of the superfluid undergoing Bjorken flow is governed by the
conventional hydrodynamic attractor with unbroken symmetry and an even number
of novel non-dissipative fixed points with broken symmetry. If the initial
temperature is super-critical, then the condensate becomes exponentially small
very rapidly and the system is trapped by the hydrodynamic attractor for a long
intermediate time before it reheats rapidly and switches to one of the
symmetry-breaking fixed points eventually. Finally, we show that the fixed
points are unstable against inhomogeneous perturbations that should lead to
spinodal decomposition. We conclude that these features should be generic
beyond the MIS formalism.
