Dear Vardan,

Yes you can get this information. One way is to
to use kwant-spectrum (https://kwant-project.org/extensions/kwantspectrum/)
to tag the different channels to their momentum and velocities.

(someone contradicts me if there is a simpler way, probably)

Best,
Xavier


Le 17 nov. 2020 à 17:04, Vardan Kaladzhyan <vardan.kaladzhyan@phystech.edu> a écrit :

Dear Kwant developers,

I was wondering if there were any examples of extracting the momenta of the scattering states? I have found several functions in the documentation that seem to cover what I would like to do, however, I have not managed to implement them, unfortunately. 

To be more specific, my problem is such that there are 'bands' in the left lead, and I would like to see how many scattering states (+their momenta) Kwant finds at a given value of the chemical potential in the lead. 

Thank you in advance for your help!

Cheers,
Vardan.