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It is interesting to note that all the steplike features in the Hartree potential versus applied bias occur at the same biases as the steplike features in the current (not shown in this paper). In other words, peaks in the dynamical conductance G ( V ) = dI/dV and in the derivative of the Hartree potential versus V are obtained for the same bias. Though, these two quantities contain the same spectral in- formation, there is no simple relationship between them. Even in the off-resonant regime, the current Eq. (20) is not only given by the lesser Green’s function from which the Hartree potential is derived. 94 

Ulf von Barth, private communication 

