基于联合经典-量子编码的经典通信协议
Classical Communication Protocol based on Joint Classical-Quantum Coding
- Aalborg University（奥尔堡大学）
机构由 AI 辅助整理，请以论文原文为准。
AI总结：
该论文提出一种集成经典纠错编码、纠缠分发与超密编码的量子通信协议，通过纠错码减轻暗计数和光子损失，在数据速率和能量效率上超越常规方案，适用于量子局域网短距离链路。
AI中文摘要：
我们提出了一种鲁棒的量子通信协议，该协议集成了经典纠错编码、纠缠分发和超密编码。经典纠错码用于通过确定量子比特传输的位置并保护通过超密编码嵌入的数据，来减轻暗计数和光子损失。我们推导了所用编码的条件，这些条件保证了在有界错误频率模型下成功纠错。此外，我们推导了受经典纠错保护的常规超密编码性能的上界。研究表明，在相同的错误频率约束下，所提出协议的合适编码配置可以在数据速率和能量效率方面超过这些上界。最后，我们基于光纤衰减、探测器效率、暗计数和时隙持续时间建立了一个物理错误模型，并使用该模型评估不同纠错码配置的有效性能。所提出的方法主要适用于短距离量子链路，如在量子局域网（QLAN）中，它可以在将纠缠分发直接集成到通信过程中的同时提供高通信吞吐量。
英文摘要：
We introduce a robust quantum communication protocol that integrates classical error-control coding, entanglement distribution, and superdense coding. Classical error-correcting codes are used to mitigate dark counts and photon losses by determining the positions of qubit transmissions and protecting the data embedded through superdense coding. We derive conditions on the employed codes that guarantee successful error correction under a bounded error-frequency model. Moreover, upper bounds are derived on the performance of conventional superdense coding protected by classical error correction. It is shown that, under the same constraints on error frequency, suitable code configurations of the proposed protocol can exceed those upper bounds both in terms of data rate and energy efficiency. Finally, we develop a physical error model based on fiber attenuation, detector efficiency, dark counts, and time-slot duration, and use it to evaluate the effective performance of different configurations of error-correcting codes. The proposed approach is primarily suited for short-distance quantum links, as in Quantum Local Area Network (QLAN) where it can provide high communication throughput while integrating entanglement distribution directly into the communication process.
