Multiplexed entanglement generation over quantum networks using multi-qubit nodes
Multiplexed entanglement generation over quantum networks using multi-qubit nodes
复制标题
使用多量子位节点在量子网络上生成多路纠缠
DOI：
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发表时间：
2017
期刊：
影响因子：
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通讯作者：
R. Hanson
中科院分区：
文献类型：
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作者：
S. V. Dam;P. Humphreys;F. Rozpędek;S. Wehner;R. Hanson
分布在几公里以外的量子网络将受到节点之间信息传播所需时间的限制。我们分析的协议，能够绕过这个瓶颈，采用多量子位节点和复用。对于每个协议，我们调查的关键网络参数，确定其性能。我们根据氮空位中心和其他有前途的网络平台的预期近期性能来模拟可实现的纠缠率。这种分析使我们能够比较在不同的制度，拟议的多路复用协议的潜力。此外，通过确定通过改进特定网络参数可能获得的收益，我们的分析表明了原型量子网络研究和开发的最有希望的途径。
Quantum networks distributed over distances greater than a few kilometres will be limited by the time required for information to propagate between nodes. We analyse protocols that are able to circumvent this bottleneck by employing multi-qubit nodes and multiplexing. For each protocol, we investigate the key network parameters that determine its performance. We model achievable entangling rates based on the anticipated near-term performance of nitrogen-vacancy centres and other promising network platforms. This analysis allows us to compare the potential of the proposed multiplexed protocols in different regimes. Moreover, by identifying the gains that may be achieved by improving particular network parameters, our analysis suggests the most promising avenues for research and development of prototype quantum networks.