I defined a QAHE hamiltonian:
ham = ("alpha * (k_x * sigma_x - k_y * sigma_y)"
"+ (m + beta * kk) * sigma_z"
"+ (gamma * kk + U) * sigma_0")
subs = {"kk": "k_x**2 + k_y**2"}
Upon using the continuum.discretize I was able to plot bands etc but am
struggling to plot the conductance. Using the method from the kwant
documentation I am getting the following error:
UserCodeError: Error occurred in user-supplied value function "onsite".
See the upper part of the above backtrace for more information.
I am new to kwant so any help would be appreciated!