  We study the approach to equilibrium of a Bose gas to a superfluid state. We
point out that dynamic scaling, characteristic of far from equilibrium
phase-ordering systems, should hold. We stress the importance of a
non-dissipative Josephson precession term in driving the system to a new
universality class. A model of coarsening in d=2, involving a quench between
two temperatures below the equilibrium superfluid transition temperature (T_c),
is exactly solved and demonstrates the relevance of the Josephson term.
Numerical results on quenches from above T_c in d=2,3 provide evidence for the
scaling picture postulated.
