Function sequant::mbpt::detail::compute_nns_p_coeffs

• Defined in File biorthogonalization.cpp

Function Documentation

std::vector<double> sequant::mbpt::detail::compute_nns_p_coeffs(std::size_t n_particles, double pseudoinverse_threshold = default_biorthogonalizer_pseudoinverse_threshold)

Computes the non-null space (NNS) projection coefficients.

Parameters:

• n_particles – The rank of external index pairs

• threshold – The threshold to compute the pseudoinverse matrix (set to default_biorth_threshold)

Returns:

Vector of computed NNS projection coefficients