for |c 0,ξ (t)c 1,ξ (t)| ̸ = 0. The detailed derivation of this expression is provided in Appendix B. The L-MFE method already accounts for the effect that modifying the magnitudes of the coefficients has on the off-diagonals of the density matrix, as shown in Eq. 59. This is another main theoretical result of the current paper.