Hi Chris, Transmission is always symmetric in 2-terminal structures due to the unitarity of the scattering matrix. There's no way around that.
Best, Anton On Sun, 19 Dec 2021 at 19:27, <statsconch...@gmail.com> wrote: > > Dear all, > In the quantum wire set up I naively considered (oversimplfied) : > > left_lead[(lat(0, j) for j in range(W))] = (+0.5) > right_lead[(lat(0, j) for j in range(W))] = (- 0.5) > > I wanted to have a bias voltage, muL > muR (0.5 eV in my case). I computed > the conductance expecting to have different values for electrons flowing from > left to right and right to left, i.e., > smatrix.transmission(1, 0)) different from smatrix.transmission(0, 1)) > > but the results are identical! > > So my question is how do I actually construct a bias voltage and get the > current from left to right different than from right to left. > To oversimplify the problem I'm not interested in energy integration, let's > assume that all the physics is dominated by electrons with a fixed energy > value. > Thank you for your answer
