# Experimental Implementation of Bias-free Quantum Random Number Generator based on Vacuum Fluctuation

### Ziyong Zheng, Yichen Zhang, Song Yu, Hong Guo

#### Abstract

We experimentally demonstrate a bias-free optical quantum random number generator with real-time randomness extraction to directly output uniform distributed random numbers by measuring the vacuum fluctuation of quantum state. A phase modulator is utilized in the scheme to effectively reduce the influence of deviations between two arms of the generator caused by the imperfect practical devices, which is an innovative solution in the field of quantum random number generator. In the case where the feedback modulation frequency is much faster than the phase jitter, an unbiased result can be obtained by an additional subtraction between the compensation signal and its average value to eliminate residual deviation. A following randomness extractor is applied to eliminate the influence of residual side information introduced by the imperfect devices in practical system.

Download#### Paper Citation

#### in Harvard Style

Zheng Z., Zhang Y., Yu S. and Guo H. (2019). **Experimental Implementation of Bias-free Quantum Random Number Generator based on Vacuum Fluctuation**.In *Proceedings of the 7th International Conference on Photonics, Optics and Laser Technology - Volume 1: PHOTOPTICS,* ISBN 978-989-758-364-3, pages 276-282. DOI: 10.5220/0007569902760282

#### in Bibtex Style

@conference{photoptics19,

author={Ziyong Zheng and Yichen Zhang and Song Yu and Hong Guo},

title={Experimental Implementation of Bias-free Quantum Random Number Generator based on Vacuum Fluctuation},

booktitle={Proceedings of the 7th International Conference on Photonics, Optics and Laser Technology - Volume 1: PHOTOPTICS,},

year={2019},

pages={276-282},

publisher={SciTePress},

organization={INSTICC},

doi={10.5220/0007569902760282},

isbn={978-989-758-364-3},

}

#### in EndNote Style

TY - CONF

JO - Proceedings of the 7th International Conference on Photonics, Optics and Laser Technology - Volume 1: PHOTOPTICS,

TI - Experimental Implementation of Bias-free Quantum Random Number Generator based on Vacuum Fluctuation

SN - 978-989-758-364-3

AU - Zheng Z.

AU - Zhang Y.

AU - Yu S.

AU - Guo H.

PY - 2019

SP - 276

EP - 282

DO - 10.5220/0007569902760282