Hello, I am currently playing around with an example given in the KWANT manuscript (section B.2 Quantum Transport). I notice that when you change the gauge of the leads to that of one different to the central system, we start to see strange behaviour of the scattered states. I was wondering if whether or not the gauge in the leads need to be the same as the gauge of the central system and if there is anything in the documentation that I could be referred to in order to help with my query. Please let me know if you require any further information on the issue.
Best wishes, Euan Bathgate.
