Dear All,
I am new to ALPS and would really appreciate any help on the following -
1. I am trying to numerically reproduce the results in this paper by Chen and Nussinov (
https://arxiv.org/abs/cond-mat/0703633) - the part where they describe free fermion on the kitaev model.
One can see that the lattice of the fermions is a square one with 2 bond types(anisotropy). How do I mention that in ALPS?
2. Can I see the matrix elements of the matrix that ALPS diagonalises?
3. Also, does ALPS dmrg, sparsediag, full diag etc use fourier transform for free fermion models? Where can I see the source codes?
What if I don't want to FT to momentum space because k will not be a good quantum number if I introduce some translation symmetry destroying disorder?