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arXiv 2310.13628quant-phcs.NI
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SurfaceNet:基于表面码的容错量子网络

SurfaceNet: Fault-Tolerant Quantum Networks with Surface Codes

Tianjie Hu, Jindi Wu, Qun Li

AI总结:

本文提出SurfaceNet,一种基于表面码直接传输量子消息的容错量子网络,通过单向量子通信过程和高效路由协议纠正操作与光子丢失错误,显著提升了整体通信保真度。

摘要:

量子网络作为在物理分离的量子处理器之间传输编码在量子比特或qubit中的信息的手段。鉴于qubit的不稳定性,此类网络的设计极具挑战,需要在可靠性与效率之间取得谨慎平衡。通常,量子网络分为两类:利用量子纠缠进行量子隐形传态的网络,以及直接传输量子消息的网络。本文提出SurfaceNet,一种属于第二类的量子网络,其采用表面码作为逻辑qubit来保存和传输消息。我们使用表面码的方法能够在网络内容错地纠正操作错误和光子丢失错误。我们提出了一种新颖的单向量子通信过程,旨在更好地将表面码集成到我们的网络架构中。我们还提出了一种高效的路由协议,以优化我们通信过程的资源利用率。仿真结果表明,SurfaceNet显著提升了整体通信保真度。

英文摘要:

Quantum networks serve as the means to transmit information, encoded in quantum bits or qubits, between quantum processors that are physically separated. Given the instability of qubits, the design of such networks is challenging, necessitating a careful balance between reliability and efficiency. Typically, quantum networks fall into two categories: those utilize quantum entanglements for quantum teleportation, and those directly transfer quantum message. In this paper, we present SurfaceNet, a quantum network in the second category that employs surface codes as logical qubits for preserving and transferring message. Our approach of using surface codes can fault-tolerantly correct both operational and photon loss errors within the network. We propose a novel one-way quantum communication procedure, designed to better integrate surface codes into our network architecture. We also propose an efficient routing protocol that optimizes resource utilization for our communication procedure. Simulation results demonstrate that SurfaceNet significantly enhances the overall communication fidelity.

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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