Entanglement Transfer through an Antiferromagnetic Spin Chain

Figure 1

(Color online) The concurrence and the purity of the state 𝜌_{0′𝑁𝑐ℎ} for the chain of length 10. (a) is for the case of FM chain (𝐽<0) and (b) is for AFM one (𝐽>0).

(a)

(b)