Complementarity between micro-micro and micro-macro entanglement in a Bose–Einstein condensate with two Rydberg impurities

Zhen Li,Yu Han,Le-Man Kuang

Figure 4. Micro-macro entanglement between two Rydberg impurities and the BEC denoted by the concurrence versus the scaled time τ for different values of the initial-state parameter α with α = 2, 3, and 5, when the two Rydberg impurities are initially in the Bell state with θ = π/4.