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arXiv quant-ph/0510062quant-ph
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采用无噪声检测器的电信波长量子密钥分发

Quantum key distribution at telecom wavelengths with noise-free detectors

Danna Rosenberg, Sae Woo Nam, Philip A. Hiskett, Charles G. Peterson, Richard J. Hughes, Jane E. Nordholt, Adriana E. Lita, Aaron J. Miller

摘要:

量子密钥可以在其上分发的安全链路的长度取决于接收器处使用的检测器的效率和暗计数率。我们报告的第一个演示量子密钥分发使用过渡边缘传感器具有高效率和可忽略的暗计数率。使用两种同步方法,明亮的光脉冲方案和电信号方案,我们已经成功地在50公里的光纤上分布了1,550 nm的关键材料。我们讨论了如何使用这些检测器在量子密钥分发系统可以导致在范围和性能的显着增加。

英文摘要:

The length of a secure link over which a quantum key can be distributed depends on the efficiency and dark-count rate of the detectors used at the receiver. We report on the first demonstration of quantum key distribution using transition-edge sensors with high efficiency and negligible dark-count rates. Using two methods of synchronization, a bright optical pulse scheme and an electrical signal scheme, we have successfully distributed key material at 1,550 nm over 50 km of optical fiber. We discuss how use of these detectors in a quantum key distribution system can result in dramatic increases in range and performance.

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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