Bruno Focassio

This is awesome. At the model setup, it is **very important** to note that we should impose the symmetry. After setting up the model, if this is going to serve...

Thank you for your patience and help. > No this won't work (I guess), you would have to use the first and last point to get the accumulated Berry-phase over...

Yes, that's what I meant, thanks again

I set up the Kane and Mele model (as in [here](http://www.physics.rutgers.edu/pythtb/examples.html#kane-mele-model-using-spinor-features)) and I'm trying to calculate the Berry phase for the two occupied bands, together and separately. The model is:...

Yes, It's working Thank you

I don't mind at all. And thank you again

Then I would simply do: ``` system = z2pack.tb.System( ... ) result = z2pack.line.run(system=system,line=lambda t: [t, 0, 0]) pol = result.pol ``` For the SSH model: for `t=1` and `dt=0.2`...

Thank you very much for the answer. Reading this paper really helped. I'm trying this with a ''simple'' example of calculating the spin Chern number for the Kane-Mele model. As...

Thank you very much

Sorry to reopen this. I'm very interested in the symmetry projection feature and trying to do a similar implementation on other codes that use Quantum Espresso projections on atomic wavefunctions....