Steady-state tracks for millimeter-sized (green curves) and centimeter-sized (blue) particles in Z–﹩{\tau }_{s}﹩ space, including the effects of turbulent particle diffusion and vapor diffusion / condensation. We assume ﹩{\dot{M}}_{p}/\dot{M}=1﹩, ﹩K={10}^{3}﹩, and the fiducial disk model. The simpler models shown in Figure 1 are plotted as the dashed lines.