Creation of Two-Particle Entanglement in Open Macroscopic Quantum Systems

Figure 5

Maximal concurrence as a function of the number of spins, for different power law scaling, as indicated in the legend. Here is 𝑓_𝑐(𝑘)=|𝑘|, 𝑝=0.5, 𝑣=0.48, 𝜖=𝜈_𝑐/𝜈_𝑇=1, 𝑇=300 K, 𝜘_𝑐=0.2. The dashed line indicates a fitting exponential for the cases 𝜂>1/4. The solid curve indicates the case, 𝜂=1/4.