Abstract
Natural thermal entanglement between two qubits with XXXHeisenberg interaction is studied. For the antiferromagnet,increasing coupling strength or decreasing temperature undercritical point increases the entanglement. Based on the thermalentanglement as quantum channel, entanglement and information of aninput entangled state are transferred via partial teleportation. Wefind that the entanglement transferred will be lost during theprocess, and for the entanglement fidelity the partial teleportationis superior to classical communication as concurrence of entangledchannel beyond 1/4. We show that both correlation information ininput entangled state and individual information of the teleportedparticle are linearly dissipated. With more entanglement inquantum channel, more entanglement and correlation information canbe transferred.
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