A low cost, short range quantum key distribution system
A low cost, short range quantum key distribution system
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DOI：
10.1140/epjqt/s40507-021-00101-2
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发表时间：
2021-05
影响因子：
5.3
通讯作者：
D. Lowndes;S. Frick;Andy Hart;J. Rarity
中科院分区：
文献类型：
--
作者：
D. Lowndes;S. Frick;Andy Hart;J. Rarity
我们提出了一个小型化的量子密钥分发系统，旨在增强目前商业上可用的更成熟的量子密钥分发系统。我们的设备专为消费市场而设计，因此尺寸、重量和功率比原始性能更重要。为了实现我们的外形，发射机是手持式的，接收机是一个更大的固定终端。我们设想用户将把他们的发射机带到位于中心的接收机，并交换他们可以在以后使用的钥匙。以80 MHz传输量子比特，峰值密钥速率超过20 kbps。该发射器设备可装入<150 ml的外壳内，重65 g，功耗为3.15 W。
We present a miniaturized quantum key distribution system, designed to augment the more mature quantum key distribution systems currently commercially available. Our device is designed for the consumer market, and so size, weight and power are more important than raw performance. To achieve our form factor, the transmitter is handheld and the receiver is a larger fixed terminal. We envisage users would bring their transmitters to centrally located receivers and exchange keys which they could use at a later point. Transmitting qubits at 80 MHz, the peak key rate is in excess of 20 kbps. The transmitter device fits within an envelope of <150 ml, weighs 65 g and consumes 3.15 W of power.