Construction of a quantum repeater based on a quantum dot in an optical microcavity system

Construction of a quantum repeater based on a quantum dot in an optical microcavity system
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光学微腔系统中基于量子点的量子中继器的构建

DOI:
10.1088/1612-2011/11/6/065202
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发表时间:
2014-04
影响因子:
1.7
通讯作者:
Zhang Y.
Zhang Y.
中科院分区:
物理与天体物理4区
文献类型:
--
作者:
Wang C.;Wang T-J;Zhang Y.

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研究了一种基于量子点与光学微腔耦合系统的高效量子中继器协议。该系统利用嵌入在光学微腔中的单光子与量子点之间的相互作用,可用于远距离量子纠缠分布。提出了微腔系统中量子点的纠缠产生和纠缠交换模块,并将其推广到量子中继器中。量子点和耦合腔的利用使得量子纠缠的产生有很高的成功概率。通过使用当前和不久的将来的技术,可以实现高保真的纠缠,并且可以实现长距离信道上的鲁棒量子通信。
We investigate an efficient quantum repeater protocol based on quantum dots (QDs) and optical microcavity coupled systems. The proposed system can be used for long-distance quantum entanglement distribution, exploiting the interaction between single photons and QDs embedded in optical microcavities. We present the entanglement generation and entanglement swapping modules with QDs in microcavity systems and generalize it to quantum repeaters. The utilization of QDs and coupled cavities leads to a high success probability for the generation of entanglement. By using current and near future technology, entanglement with a high fidelity can be achieved and robust quantum communication over long-distance channels is feasible.
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