Re: [Kwant-devel] Ideas about Kwant Symmetry API

2016-10-27 Thread Dániel Varjas
Hi Christoph, I'll try to address all of your questions. I discuss some more issues in my reply to your old email on the topic. Correct me if I’m wrong but it seems to me that a good representation of > the spatial part would be rational matrices like the ones returned by > >

Re: [Kwant-devel] Symmetries

2016-10-27 Thread Dániel Varjas
Hi Christoph, Here are my comments to your old email. I see what you mean: calculations are done with matrices that only have the > translational symmetries left. So what’s the point in solvers knowing > anything about non-translational symmetries? First of all, it makes sense to define a

Re: [Kwant-devel] Symmetries

2016-11-10 Thread Dániel Varjas
Hi Everyone, After long discussions with Joe and Michael I got a way better idea about what the low level system is, and how it's supposed to work. My first reaction was, the level of abstraction we want to maintain, such as not storing any of the spatial structure of the system, will make

[Kwant-devel] Ideas about Kwant Symmetry API

2016-10-22 Thread Dániel Varjas
Hi Kwant people! I recently joined the Quantum Tinkerer group in Delft, and I'd like to start a discussion about implementing space-group symmetries in kwant. Find my initial thoughts below. Best, Daniel I think we can be very general, and treat all kinds of on-site, spatial and mixed