Hi
I'm confused as to how the system knows what i and j should be (like nearest neighbor, next nearest, etc) for a particular model, since the bond-operators just go from i to j.
Also, when there are wild cards in parameters, e.g., mu# in the boson Hubbard Hamiltonian, where are the different types defined? Do I need to define a new lattice type to allow for spatially varying mu, e.g.?
Thanks Deepak