Module: openfermion.functionals.get_one_norm

Function to calculate the 1-Norm of a molecular Hamiltonian in spatial orbital basis after fermion-to-qubit transformation.

See https://arxiv.org/abs/2103.14753 for more information on the 1-norm.

Functions

get_one_norm_int(...): Returns the 1-Norm of a RHF or ROHF Hamiltonian described in https://arxiv.org/abs/2103.14753 after a fermion-to-qubit transformation given nuclear constant, one-body (2D np.array) and two-body (4D np.array) integrals in spatial orbital basis.

get_one_norm_int_woconst(...): Returns 1-norm, emitting the constant term in the qubit Hamiltonian.

get_one_norm_mol(...): Returns the 1-Norm of a RHF or ROHF Hamiltonian described in https://arxiv.org/abs/2103.14753 after a fermion-to-qubit transformation given a MolecularData class.

get_one_norm_mol_woconst(...): Returns 1-norm, emitting the constant term in the qubit Hamiltonian.