Jerry xhm wrote: > I finally found a workaround to avoid any additionally added > sites. Every lead is connected just as expected. The trick is to > define each lead and attach their reversed() only. I put the modified > part of the code here in case that anyone else finds it helpful.
Glad to hear that you found a workaround. However, it seems to me that this measure works for you only by chance, and is not a generic solution to the problem you faced. It all depends on how you construct the central region (shaped as a rotated rectangle). If the sides of your rasterized [1] rectangle had exactly matched what Kwant’s lattice module imposes for a given angle, no extra sites had been added to the central region upon lead attachment. Christoph [1] https://en.wikipedia.org/wiki/Rasterisation
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