Printing Transmission Amplitude in KWANT
15 Dec
2022
15 Dec
'22
3:10 p.m.
Hi Kwant Users ! I was trying to print the transmission function (or say, transmission amplitude) in KWANT, but couldn't find how to do it. Can anyone suggest if there is any way to do it ? It will be a great help. Thanks a lot.
16 Dec
16 Dec
10:44 a.m.
Hi, I just stated using Kwant but maybe I can help. You can retrieve the S matrix using `kwant.smatrix(syst, energy)`, which contains the transmission matrix of the system. Then, for a given input wavefunction, you can compute the transmitted one with a simple matrix multiplication. I did something similar for optical waveguides here: https://github.com/wavefrontshaping/WFS.net/blob/master/Kwant_disordered_wav... Hope it helps,
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sebastien.popoff@espci.fr
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Subhadeep Chakraborty