Entanglement properties between two atoms in the binomial optical field interacting with two entangled atoms
Liu Tang-Kun1, †, , Zhang Kang-Long1, 2, Tao Yu1, Shan Chuan-Jia1, Liu Ji-Bing1
       

Time evolution of EAB versus θ = π/3, or θ = 2π/3 for different M. The parameters are ϕ = 0, G = 1, and σ = 0.5. From panel (a) to panel (d): M = 1; M = 5; M = 10; M = 15.