作者
EO Samsonov, BE Pervushin, AE Ivanova, AA Santev, VI Egorov, SM Kynev, AV Gleim
发表日期
2020/9
期刊
Quantum Information Processing
卷号
19
页码范围
1-11
出版商
Springer US
简介
We present an optical quantum random number generator based on vacuum fluctuation measurements that uses multi-mode coherent states generated by electro-optical phase modulation of an intense optical carrier. In this approach the weak coherent multi-mode state (or a vacuum state) interferes with the carrier, which acts as a local oscillator, on each side mode independently. The proposed setup can effectively compensate for any deviations between the two arms of a balanced detector by controlling the modulation index of the modulator. We perform a proof-of-principle experiment and demonstrate random number generation with a possibility of real-time randomness extraction at the rate of 400 Mbit/s. The proposed concept has a potential for randomness generation rates comparable to the widely employed vacuum-based quantum random number generators.
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EO Samsonov, BE Pervushin, AE Ivanova, AA Santev… - Quantum Information Processing, 2020