Entanglement teleportation via a couple of quantum channels in Ising–Heisenberg spin chain model of a heterotrimetallic Fe–Mn–Cu coordination polymer*

Project supported by the National Natural Science Foundation of China (Grant No. 11274102), the New Century Excellent Talents in University of Ministry of Education of China (Grant No. NCET-11-0960), and the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20134208110001).

Zheng Yi-Dan, Mao Zhu, Zhou Bin
       

(a) Magnetic structure of the Ising–Heisenberg spin chain of the heterotrimetallic coordination compounds Fe–Mn–Cu. The green, violet, and orange balls denote Cu2+, Mn2+, and Fe3+ ions, respectively. The dashed lines indicate the Ising coupling, the solid lines represent the Heisenberg coupling, and the dashed box denotes the quantum channel. (b) A schematic drawing of the teleportation of the input state (ρin) via a couple of quantum channels (ρch). The output state of teleportation is denoted as ρout.