TeNPy Forum

You're right, L_x is just the number of "rings" of the cylinder included into the MPS unit cell. I agree that the energy per site shouldn't depend on L_x, so it's a bad sign if it does, there's probably something wrong then

To answer first in general (That's the perfect place to ask this ;-)): If you give the strength parameter to add_coupling , it is tiled to the "correct" size of the couplings. You are right, for onsite terms in add_onsite , this is simply the Ls of the lattice. Now what is the "correc...

Since I've recently added the MultiCouplingModel , it's time to add a simple model actually using it. I think the exactly solvable toric code is a good example, so here is my implementation: """Kitaev's exactly solvable toric code model. As we put the model on a cylinder, the name &qu...

It's a bit wired to make the announcement that I've set up this forum in this forum, but I guess that's the first thing to announce to the world once this forum is set up
Anyways, I'm awaiting your questions, suggestions and contributions. Happy posting!