Generation of True Quantum Random Numbers with On-Demand Probability Distributions via Single-Photon Quantum Walks
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arXiv
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| Format: | Preprint |
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2024
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| _version_ | 1866913344538017792 |
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| author | Meng, Chaoying Cai, Miao Yang, Yufang Wu, Haodong Li, Zhixiang Ruan, Yaping Zhang, Yong Zhang, Han Xia, Keyu Nori, Franco |
| author_facet | Meng, Chaoying Cai, Miao Yang, Yufang Wu, Haodong Li, Zhixiang Ruan, Yaping Zhang, Yong Zhang, Han Xia, Keyu Nori, Franco |
| contents | Random numbers are at the heart of diverse fields, ranging from simulations of stochastic processes to classical and quantum cryptography. The requirement for true randomness in these applications has motivated various proposals for generating random numbers based on the inherent randomness of quantum systems. The generation of true random numbers with arbitrarily defined probability distributions is highly desirable for applications, but it is very challenging. Here we show that single-photon quantum walks can generate multi-bit random numbers with on-demand probability distributions, when the required ``coin'' parameters are found with the gradient descent (GD) algorithm. Our theoretical and experimental results exhibit high fidelity for various selected distributions. This GD-enhanced single-photon system provides a convenient way for building flexible and reliable quantum random number generators. Multi-bit random numbers are a necessary resource for high-dimensional quantum key distribution. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2403_02614 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Generation of True Quantum Random Numbers with On-Demand Probability Distributions via Single-Photon Quantum Walks Meng, Chaoying Cai, Miao Yang, Yufang Wu, Haodong Li, Zhixiang Ruan, Yaping Zhang, Yong Zhang, Han Xia, Keyu Nori, Franco Quantum Physics Optics Random numbers are at the heart of diverse fields, ranging from simulations of stochastic processes to classical and quantum cryptography. The requirement for true randomness in these applications has motivated various proposals for generating random numbers based on the inherent randomness of quantum systems. The generation of true random numbers with arbitrarily defined probability distributions is highly desirable for applications, but it is very challenging. Here we show that single-photon quantum walks can generate multi-bit random numbers with on-demand probability distributions, when the required ``coin'' parameters are found with the gradient descent (GD) algorithm. Our theoretical and experimental results exhibit high fidelity for various selected distributions. This GD-enhanced single-photon system provides a convenient way for building flexible and reliable quantum random number generators. Multi-bit random numbers are a necessary resource for high-dimensional quantum key distribution. |
| title | Generation of True Quantum Random Numbers with On-Demand Probability Distributions via Single-Photon Quantum Walks |
| topic | Quantum Physics Optics |
| url | https://arxiv.org/abs/2403.02614 |