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 5. Micro-macro entanglement (red solid line) between two Rydberg impurities and the BEC denoted by the negativity versus the scaled time τ, micro-micro entanglement (blue dashed line) between two Rydberg impurities denoted by the negativity versus the scaled time τ, when the two Rydberg impurities is initially in the Bell state with θ = π/4 and initial state parameter of the BEC α = 2. The BEC decoherence rates is assumed κ = 0.02.