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arXiv quant-ph/0602019quant-ph
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连续变量量子密钥分发的计算复杂度

Computational Complexity of Continuous Variable Quantum Key Distribution

Yi-Bo Zhao, You-Zhen Gui, Jin-Jian Chen, Zheng-Fu Han, Guang-Can Guo

摘要:

连续变量量子密钥分发被认为具有提供高密钥速率的潜力。然而,在目前的实验演示中,只能在非常小的丢失率下提取密钥。在这里,通过显式计算的计算复杂度与信道传输,我们表明,在高丢失率下,它是很难提取的秘密密钥在目前的连续变量方案和它的优点之一,提供高密钥速率的潜力,因此可能是有限的。

英文摘要:

The continuous variable quantum key distribution has been considered to have the potential to provide high secret key rate. However, in present experimental demonstrations, the secret key can be distilled only under very small loss rates. Here, by calculating explicitly the computational complexity with the channel transmission, we show that under high loss rate it is hard to distill the secret key in present continuous variable scheme and one of its advantages, the potential of providing high secret key rate, may therefore be limited.

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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