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We study the approach to equilibrium of a Bose gas to a superfluid state. Wepoint out that dynamic scaling, characteristic of far from equilibriumphase-ordering systems, should hold. We stress the importance of anon-dissipative Josephson precession term in driving the system to a newuniversality class. A model of coarsening in dimension $d=2$, involving aquench between two temperatures below the equilibrium superfluid transitiontemperature ($T_c$), is exactly solved and demonstrates the relevance of theJosephson term. Numerical results on quenches from above $T_c$ in $d=2,3$provide evidence for the scaling picture postulated.Comment: 10 pages; revised presentation, but no additional result

Phase ordering kinetics of the Bose gas