) Eh+R' Exact FIG. . Dynamics of Model 8 using (a,c) the original Ehren-fest+R approach (labeled as Eh+R) and (b,d) the Ehrenapproach using the modified γ ′ R from Eq. 75 (labeled as Eh+R ′ ). The modified Ehrenfest+R dynamics (Eh+R ′ ) are identical to those obtained from the L-MFE method for this model. The solid lines are exact Lindblad dynamics while the dotted lines are the original or modified Ehrenfest+R approach. Panels (a) and (b) present the diagonal populations, with ρ00(t) (dark blue), ρ11(t) (cyan), and ρ22(t) (magenta). Panels (c) and (d) present the off-diagonal coherences, with Im[ρ10](t) (orange), Im[ρ12](t) (yellow), and Im[ρ20](t) (red).