The influence of the atom–cavity coupling Ω on the dynamics of atomic squeezing factor F₂ (black solid line) and the concurrence C (blue dashed line) versus γ₀t in the Markovian regime (λ = 5γ₀). (a) Ω = γ₀; (b) Ω = 2γ₀; (c) Ω = 50γ₀. Other parameters are θ = π/4, φ = 0, and Ω₀ = 20γ₀. The red dotted lines indicate the envelope lines of the F₂-oscillations.