Hi Camilla, It's exactly like you would expect: syst[A_up(i, j), B_down(i, j)] = value. See e.g. https://kwant-project.org/doc/1/tutorial/tutorial4
Best, Anton On Mon, Oct 31, 2016 at 6:43 AM, Camilla Espedal <camilla.espe...@ntnu.no> wrote: > Hi, > > > > To explain what I mean. I have a system where I have separated spin-up and > spin-down into two lattices (like electron and hole in the example at the > kwant site) so that it is would be easier to extract spin-resolved > information (G_up/up, Gup/down etc.). In addition, these two lattices > consists of two sublattices (A and B). The code is like this > > > > lat_up = kwant.lattice.general([(1,0),(s,c)],[(0,0),(0,1/sqrt(3))], > name='up') > > A_up, B_up = lat_up.sublattices > > lat_down = kwant.lattice.general([(1,0),(s,c)],[(0,0),(0,1/sqrt(3))], > name='down') > > A_down, B_down = lat_down.sublattices > > > > What I want to do now, is to add a hopping term between say A_up (i,j) and > B_down (i.j). So a hopping term between the two different lattices and > sublattices. How can I implement this? Or is there a better way to achieve > what I want? > > > > Best > > Camilla Espedal
