Similar to the compute_one_body_expectation_value we want a compute_two_body_expectation_value for general two-body matrix elements. This requires the two-body density matrix for a given method in order to work (this is currently lacking in (at least) the CCSD-code).
Similar to the
compute_one_body_expectation_value
we want acompute_two_body_expectation_value
for general two-body matrix elements. This requires the two-body density matrix for a given method in order to work (this is currently lacking in (at least) the CCSD-code).