论文标题
基于极地代码的信息核对方案,具有冷冻位擦除策略的量子键分布
Polar Codes-based Information Reconciliation Scheme with Frozen Bits Erasure Strategy for Quantum Key Distribution
论文作者
论文摘要
信息对帐(IR)通过纠正筛分键中存在误差位来确保量子密钥分布系统的正确性。在本文中,我们提出了一个基于极地代码的IR方案,并具有冷冻的擦除策略,其中进行了筛分键的等效传输,以便将解码过程中的冷冻位删除至0。因此,可以在不假定真实随机数的情况下有效地实现我们的IR方案。此外,我们以快速简化的连续取消列表解码器实施了提出的IR方案,其吞吐量达到0.88Mbps,产量为0.8333,其中解码器列表的大小为16,块大小为1MB,量子位误差率为0.02。
Information reconciliation (IR) ensures the correctness of quantum key distribution systems, by correcting the error bits existed in the sifted keys. In this article, we propose a polar codes-based IR scheme with the frozen bits erasure strategy, where an equivalent transmission of sifted keys is conducted, so that the frozen bits in the decoding procedure is erased to 0. Thus, our IR scheme can be implemented efficiently without the assumption of true random numbers. Furthermore, we implement the proposed IR scheme with the fast simplified successive cancellation list decoder and its throughput reaches to 0.88Mbps with the yield of 0.8333, where the decoder list size is 16, the block size is 1Mb and the quantum bit error rate is 0.02.