triqs.lattice.super_lattice.TBSuperLattice.change_coordinates_L_to_SL
- TBSuperLattice.change_coordinates_L_to_SL(x)[source]
Map a base-lattice point
x(in lattice coordinates) to its superlattice coordinates(R, alpha).- Parameters:
- xarray-like of int
Position on the base lattice in lattice coordinates.
- Returns:
- Rtuple of int
Superlattice displacement.
- alphaint
Index of the site within the cluster.