(color online) Averaged entanglement 〈S(t)〉 for the static 1st GF QWs with α = π/3, β = π/6. The red, orange, and blue curves correspond to n = 1, m = 1; n = 2, m = 1, and n = 3, m = 1, respectively. The insets (a) and (b) are Δ_S(t) and Δ_E(t), respectively. The solid curves were obtained by fitting of the simulated data, where we have dropped the first 100 points to better highlight the asymptotic behavior. The slopes of these solids are (−0.33±0.002).