Quantum entanglement dynamics based on composite quantum collision model
Li Xiao-Ming, Chen Yong-Xu, Xia Yun-Jie, Zhang Qi, Man Zhong-Xiao
       

(a), (b) Concurrence of the system as a function of collision rounds n for different intracollision strengths Γ with θ = π/4. (c) Concurrence as a function of collision rounds n for different initial states with Γ = 1.2, λ2 = 0.05, and M = 0.05. The other parameters are T = 1, κ = λ1 = 0, and ω = 1.