Hello everyone!

I have been trying to use ITensor to calculate the properties of a Hubbard Hamiltonian with 3 internal components.

I think the questions is related in a way to this one:

http://itensor.org/support/25/multiband-hubbard-model?show=25#q25

although I cannot see how to construct such a model by simply extending the Hubbard code with more sites in an unit cell.

How can we construct the set of operators required to approach this problem? Do we have examples of that?

Best,

Rafael