Sept. 12, 2021
11:32 a.m.
Anton Akhmerov wrote:
# Correct the reflection blocks, so that rows and columns sum to zero. cond -= np.diag(cond.sum(axis=0))
Hello Anton (or anyone who reads this), Sorry for waking up this old thread. May I ask why this step is necessary to calculate a Hall conductance? I don't immediately see this requirement in the Buttiker formula or the code after it. Does it affect the result in general? In another kwant code of 6-terminal QHE, this step is not seen. Or is it assumed in the kwant function conductance_matrix() ? https://github.com/topocm/topocm_content/blob/master/w3_pump_QHE/Laughlinarg... Thank you.