openfermion.circuits.fermionic_swap_trotter_error_operator_diagonal_two_body

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Compute the fermionic swap network Trotter error of a diagonal two-body Hamiltonian.

openfermion.circuits.fermionic_swap_trotter_error_operator_diagonal_two_body(
    hamiltonian, external_potential_at_end=False
)

hamiltonian FermionOperator

The diagonal Coulomb Hamiltonian to compute the Trotter error for.

error_operator The second-order Trotter error operator.

Follows Eq 9 of Poulin et al., arXiv:1406.4920, applied to the Trotter step detailed in Kivlichan et al., arxiv:1711.04789.