Dear Yue, I think it would be useful to you if you visit Kwant frequently asked questions*. If you do so, I guess you would be able to solve your issue. Best Adel
* https://kwant-project.org/doc/dev/tutorial/faq Le jeu. 28 déc. 2023 à 12:57, <araya0...@gmail.com> a écrit : > Dear Anton, > > Thank you very much for your advice. As I am a novice, I am not familiar > enough with using kwant, so I can't correct this mistake now. I would > appreciate it if you could give me an example. This will be very helpful to > understand the error. Best wishes. > > Sincerely, > Yue Xiang >