arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1609.09600quant-ph
收藏

利用复用相干态指纹的高效量子通信

Efficient quantum communications with multiplexed coherent state fingerprints

Niraj Kumar, Eleni Diamanti, Iordanis Kerenidis

摘要:

我们提供了第一个例子的通信模型和分布式任务,其中存在一个现实的量子协议,这是渐近更有效的比任何经典的协议,无论是在通信和信息资源。为此,我们扩展了最近提出的量子通信协议的相干态映射,引入复用相干态指纹的概念,并展示了如何使用它们来设计一个有效的量子协议,用于估计两个实向量的欧氏距离在一个常数因子内。

英文摘要:

We provide the first example of a communication model and a distributed task, for which there exists a realistic quantum protocol which is asymptotically more efficient than any classical protocol, both in the communication and the information resources. For this, we extend a recently proposed coherent state mapping for quantum communication protocols, introduce the notion of multiplexed coherent state fingerprints and show how to use them to design an efficient quantum protocol for estimating the Euclidean distance of two real vectors within a constant factor.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑