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arXiv 2109.07086quant-ph
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基于玻色子纠错和隐形传态的连续变量量子中继器:结构和应用

Continuous-variable quantum repeaters based on bosonic error-correction and teleportation: architecture and applications

Bo-Han Wu, Zheshen Zhang, Quntao Zhuang

摘要:

量子中继器是量子网络的重要组成部分,它连接着遥远的量子模块,如量子计算机和传感器。受分布式量子计算和通信的启发,中继离散变量量子信息的量子中继器已被广泛研究;而连续变量(CV)量子信息支撑各种量子传感和通信应用,用于真正CV量子信息的量子中继器架构在很大程度上仍未被探索。本文提出了一种基于CV量子隐形传态的CV量子中继器结构,该结构采用Gottesman-Kitaev-Preskill(GKP)码辅助,有效地抑制了物理噪声。所设计的CV量子中继器架构被示出为显著提高CV量子密钥分发、纠缠辅助通信和基于量子照明的目标检测的性能,作为量子通信和感测的三个代表性用例。

英文摘要:

Quantum repeaters are essential ingredients for quantum networks that link distant quantum modules such as quantum computers and sensors. Motivated by distributed quantum computing and communication, quantum repeaters that relay discrete-variable quantum information have been extensively studied; while continuous-variable (CV) quantum information underpins a variety of quantum sensing and communication application, a quantum-repeater architecture for genuine CV quantum information remains largely unexplored. This paper reports a CV quantum-repeater architecture based on CV quantum teleportation assisted by the Gottesman-Kitaev-Preskill (GKP) code to significantly suppress the physical noise. The designed CV quantum-repeater architecture is shown to significantly improve the performance of CV quantum key distribution, entanglement-assisted communication, and target detection based on quantum illumination, as three representative use cases for quantum communication and sensing.

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。

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