Finite-size analysis of continuous variable source-independent quantum random number generation

Autor:	Zhang, Junyu, Zhang, Yi-Chen, Zheng, Ziyong, Chen, Ziyang, Xu, Bingjie, Yu, Song
Rok vydání:	2020
Předmět:	Quantum Physics
Druh dokumentu:	Working Paper
Popis:	We study the impact of finite-size effect on continuous variable source-independent quantum random number generation. The central-limit theorem and maximum likelihood estimation theorem are used to derive the formula which could output the statistical fluctuations and determine upper bound of parameters of practical quantum random number generation. With these results, we can see the check data length and confidence probability has intense relevance to the final randomness, which can be adjusted according to the demand in implementation. Besides, other key parameters, such as sampling range size and sampling resolution, have also been considered in detail. It is found that the distribution of quantified output related with sampling range size has significant effects on the loss of final randomness due to finite-size effect. The overall results indicate that the finite-size effect should be taken into consideration for implementing the continuous variable source-independent quantum random number generation in practical. Comment: 8 pages, 8 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2002.12767 Zobrazit plný text záznamu View this record from Arxiv