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General quantum Bernoulli factory: framework analysis and experiments
Quantum Science and Technology ( IF 6.7 ) Pub Date : 2021-09-30 , DOI: 10.1088/2058-9565/ac2061
Yong Liu 1, 2 , Jiaqing Jiang 3, 4 , Pingyu Zhu 1 , Dongyang Wang 1 , Jiangfang Ding 1 , Xiaogang Qiang 1, 5 , Anqi Huang 1 , Ping Xu 1 , Jialin Zhang 3, 4 , Guojing Tian 3, 4 , Xiang Fu 1 , Mingtang Deng 1 , Chunqing Wu 1 , Xiaoming Sun 3, 6 , Xuejun Yang 1 , Junjie Wu 1
Affiliation  

The unremitting pursuit for quantum advantages gives rise to the discovery of a quantum-enhanced randomness processing named quantum Bernoulli factory (QBF). This quantum enhanced process can show its priority over the corresponding classical process through readily available experimental resources, thus in the near term it may be capable of accelerating the applications of classical Bernoulli factories, such as the widely used sampling algorithms. In this work, we provide the framework analysis of the QBF. We thoroughly analyze the quantum state evolution in this process, discovering the field structure of the constructible quantum states. Our framework analysis shows that naturally, the previous works can be described as specific instances of this framework. Then, as a proof of principle, we experimentally demonstrate this framework via an entangled two-photon source along with a reconfigurable photonic logic, and show the advantages of the QBF over the classical model through a classically infeasible instance. These results may stimulate the discovery of advantages of the quantum randomness processing in a wider range of tasks, as well as its potential applications.



中文翻译:

通用量子伯努利工厂:框架分析与实验

对量子优势的不懈追求,催生了一种名为量子伯努利工厂(QBF)的量子增强随机性处理。这种量子增强过程可以通过现成的实验资源显示其优于相应经典过程的优先级,因此在短期内它可能能够加速经典伯努利工厂的应用,例如广泛使用的采样算法。在这项工作中,我们提供了 QBF 的框架分析。我们深入分析了这个过程中的量子态演化,发现了可构造量子态的场结构。我们的框架分析表明,自然地,以前的工作可以描述为该框架的具体实例。然后,作为原理证明,我们通过纠缠的双光子源和可重构光子逻辑通过实验证明了这个框架,并通过经典不可行的实例展示了 QBF 相对于经典模型的优势。这些结果可能会刺激发现量子随机性处理在更广泛的任务及其潜在应用中的优势。

更新日期:2021-09-30
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