In my case,
I have a system with more than one mode. I have
found some lines that consider all the modes (at
the end of this page :
https://kwant-project.org/doc/dev/tutorial/operators )
|
kwant-project.org
2.7. Computing local
quantities: densities and currents¶
In the previous tutorials we have
mainly concentrated on calculating
global properties such as
conductance ...
|
wf_left
=
wf(0)
J_m_left
=
sum(J_m_bound(p)
for
p
in
wf_left)
J_z_left
=
sum(J_z_bound(p)
for
p
in
wf_left)
But this is
equivalent to calculate the expression
which is simply the sum over the current coming from each mode. However, I would have rather use the following expression to find a more general expression of the current density
What is therefore the good way to find J? I have not found more informations in the Kwant documentation.
Best regards,
Nicolas