Environment-assisted entanglement restoration and improvement of the fidelity for quantum teleportation
Environment-assisted entanglement restoration and improvement of the fidelity for quantum teleportation
复制标题
环境辅助的纠缠恢复和量子隐形传态保真度的提高
DOI:
10.1007/s11128-015-1111-0
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发表时间:
2015-11
影响因子:
2.5
通讯作者:
Zhang Shou
中科院分区:
文献类型:
--
作者:
Xu Xian-Mei;Cheng Liu-Yong;Liu A-Peng;Su Shi-Lei;Wang Hong-Fu;Zhang Shou
Three environment-assisted schemes are proposed to suppress the amplitude damping decoherence for entanglement distribution via weak measurement reversal. Based on the measurement of environment and appropriate weak measurement reversal operations, the initial entangled state can be recovered between two separated participants with high success probability and fidelity. In some specific cases, the restored optimal concurrence could reach up to 1 without requirement of the reversing measurement. Moreover, we concretely show that the proposed environment-assisted entanglement restoration can be applied to quantum teleportation to significantly improve the fidelity of the teleported state.
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