triqs.lattice.tight_binding.TBLattice.units

property TBLattice.units

Lattice basis vectors as a (ndim, ndim) array in the standard basis.

Returns:

numpy.ndarray

Two-dimensional array whose rows are the basis vectors \(\{ \mathbf{a}_1, \dots, \mathbf{a}_d \}\) of the Bravais lattice.