The influence of the big detuning on D (dashed line) and E (solid line) in the non-Markovian regime (i.e., δ = 4γ₀ and λ = 0.1γ₀). (a) and (b) T = 0. (c) and (d) k_BT/ħω₀ = 1. The insets show the long-time dynamics. Other ω₀ = 10γ₀.