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

Concurrence against the collisions rounds n for the initial state θ = −π/4, the other parameters are T = 0.5, κ = 0.01, Γ = 1.2, λ1 = λ2 = 0.01, M = 0, ω = 1.