triqs.lattice.super_lattice.TBSuperLattice.unpack_index_site_orbital

TBSuperLattice.unpack_index_site_orbital(index)

Split a superlattice orbital index back into a (n_site, n_orbital) pair (inverse of pack_index_site_orbital()).

Parameters:

indexint

Combined superlattice orbital index.

Returns:

n_siteint

Zero-based index of the site within the cluster.

n_orbitalint

Zero-based orbital index on that site.