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/2 for different σ. The parameters are ϕ = 0 or ϕ = π, M = 5, and G = 1. From panel (a) to panel (d): σ = 0.1; σ = 0.3; σ = 0.6; σ = 0.9.