Partial Teleportation of Entanglement Through Natural Thermal Entanglement in Two-Qubit Heisenberg XXX Chain

Natural thermal entanglement between two qubits with XXX Heisenberg interaction is studied.For theantiferromagnet,increasing coupling strength or decreasing temperature under critical point increases the entanglement.Based on the thermal entanglement as quantum channel,entanglement and information of an input entangled state aretransferred via partial teleportation.We find that the entanglement transferred will be lost during the process,and forthe entanglement fidelity the partial teleportation is superior to classical communication as concurrence of entangledchannel beyond 1/4.We show that both correlation information in input entangled state and individual information ofthe teleported particle are linearly dissipated.With more entanglement in quantum channel,more entanglement andcorrelation information can be transferred.