[Kwant] Question about lead_info[].wave_functions[]

[Camilla Espedal]

Hi all,

I have a question regarding the lead_info[x].wave_functions[x]. I am not sure 
what this is actually returning? I tried to run the function on your 
quantum_wire_revisited.py-system, like this

    prop = sm.lead_info[0]
    print(prop.wave_functions[0])

with W = 2, if that is important. It then returns a 1x2 array or 2x2 matrix 
depending on the energy. What does this matrix contain? I read about 
propagatingmodes in the documentation, but I am not sure what it meant.

Best,
Camilla