Improving teleportation fidelity in structured reservoirs
Improving teleportation fidelity in structured reservoirs
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DOI：
10.1016/j.optcom.2013.02.044
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发表时间：
2012-11
影响因子：
2.4
通讯作者：
Yu-Xia Xie;X. Xi
中科院分区：
文献类型：
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作者：
Yu-Xia Xie;X. Xi
在开放系统中寻求灵活的量子隐形传态控制方法是量子通信的重要任务。在本文中，我们研究了如何超欧姆，欧姆和亚欧姆水库影响的隐形传态协议的性能。结果表明，水库的结构起着重要的作用，在决定质量的隐形传态。在强耦合区，特别是当存在束缚态时，由于库的非马尔可夫记忆效应的强反作用，在一定的时间范围内，量子隐形传态的保真度有可能得到一定程度的提高。负责这种改进的物理机制是确定的。
Seeking flexible methods to control quantum teleportation in open systems is an important task of quantum communication. In this paper, we study how the super-Ohmic, Ohmic and sub-Ohmic reservoirs affect the performance of the teleportation protocol. The results revealed that the structures of the reservoir play an important role in determining quality of teleportation. In the strong coupling regime, especially when there is bound state formatted, the fidelity of teleportation may be improved to some extent during certain time regions by the strong backaction of the non-Markovian memory effects of the reservoir. The physical mechanism responsible for this improvements is determined.