Figure 5. A toy model calculation of transport properties.

We consider different models of how particular transport channels with transmittances τ_i contribute to the conductance. (a) Each channel contributes in turn as conductance is increased, with no channel mixing. (b) An alternative model, with considerable channel mixing. In both panels, the dotted lines indicate calculated Fano factors, the solid blue lines denote , and the solid red line shows , all as a function of G.