Dear Christoph, Thank you for your help. I will have a look at the discretization for a simpler case and then scale up the system to what I have currently. Best wishes, Isobel ________________________________ From: Christoph Groth Sent: Wednesday, March 22, 2023 16:32 To: Clarke, Isobel Cc: kwant-discuss@python.org Subject: Re: [Kwant] Re: How does the grid spacing in kwant.continuum.discretize effect the system? Clarke, Isobel wrote:

I've had a look at the Kwant tutorial about the discretization. However, the response I am seeing isn't consistent with the idea of an energy limit being reached.

Sorry, I have no more specific idea about what the problem could be in your case. When seeing such inconsistent behavior within a sequence of discretizations, I would try to verify the consistency of that sequence in simpler circumstances. For example, one could verify that the bandstructure evolves as expected as one changes the discretization length. A second possible check would be to do some time-independent transport computation. If you find an inconsistency already with these simpler checks, it will be easier to understand. If you do not, you have narrowed down the problem already.