Dear Kwanters,
The kwant.continuum.discretize helps transform a continuous k.p
Hamiltonian to a tight-binding Hamiltonian. During this discretizing process,
we can use the "grid" parameter to control the "mesh" of such a discretization.
In the tutorial, I see that different "grid" result in different
approximations of the tight-binding Hamiltonian with respect to the continuous
Hamiltonian.
See https://kwant-project.org/doc/1/tutorial/discretize
My question is: which value of grid should we use during the discretizing
process? Should we decrease the "grid" from a larger value to a smaller value,
monitoring the band structure and conductance behavior, until the band
structure and conductance behavior remain almost unchanged when further
decreasing the "grid"?
Thanks a lot for your answer.
