Modular quantum-to-quantum Bernoulli factory in an integrated photonic processor

IF 32.3 1区 物理与天体物理 Q1 OPTICS
Francesco Hoch, Taira Giordani, Luca Castello, Gonzalo Carvacho, Nicolò Spagnolo, Francesco Ceccarelli, Ciro Pentangelo, Simone Piacentini, Andrea Crespi, Roberto Osellame, Ernesto F. Galvão, Fabio Sciarrino
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Abstract

Generation and manipulation of randomness is a relevant task for several applications of information technology. It has been shown that quantum mechanics offers some advantages for this type of task. A promising model for randomness manipulation is provided by Bernoulli factories—protocols capable of changing the bias of Bernoulli random processes in a controlled way. At first, this framework was proposed and investigated in a fully classical regime. Recent extensions of this model to the quantum case showed the possibility of implementing a wider class of randomness manipulation functions. We propose a Bernoulli factory scheme with quantum states as the input and output, using a photonic-path-encoding approach. Our scheme is modular and universal and its functioning is truly oblivious of the input bias—characteristics that were missing in earlier work. We report on experimental implementations using an integrated and fully programmable photonic platform, thereby demonstrating the viability of our approach. These results open new paths for randomness manipulation with integrated quantum technologies.

Abstract Image

集成光子处理器中的模块化量子到量子伯努利工厂
随机性的产生和操纵是信息技术若干应用领域的一项相关任务。研究表明,量子力学为这类任务提供了一些优势。伯努利工厂--能够以受控方式改变伯努利随机过程偏差的协议--为随机性操纵提供了一个前景广阔的模型。起初,这一框架是在完全经典的情况下提出和研究的。最近,这一模型扩展到量子情况,显示了实现更广泛的随机性操纵函数的可能性。我们采用光子路径编码方法,提出了一种以量子态为输入和输出的伯努利工厂方案。我们的方案具有模块化和通用性的特点,其功能真正不受输入偏差特征的影响,而这正是早期工作所缺乏的。我们报告了使用集成的、完全可编程的光子平台的实验实施情况,从而证明了我们方法的可行性。这些成果为利用集成量子技术操纵随机性开辟了新的道路。
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来源期刊
Nature Photonics
Nature Photonics 物理-光学
CiteScore
54.20
自引率
1.70%
发文量
158
审稿时长
12 months
期刊介绍: Nature Photonics is a monthly journal dedicated to the scientific study and application of light, known as Photonics. It publishes top-quality, peer-reviewed research across all areas of light generation, manipulation, and detection. The journal encompasses research into the fundamental properties of light and its interactions with matter, as well as the latest developments in optoelectronic devices and emerging photonics applications. Topics covered include lasers, LEDs, imaging, detectors, optoelectronic devices, quantum optics, biophotonics, optical data storage, spectroscopy, fiber optics, solar energy, displays, terahertz technology, nonlinear optics, plasmonics, nanophotonics, and X-rays. In addition to research papers and review articles summarizing scientific findings in optoelectronics, Nature Photonics also features News and Views pieces and research highlights. It uniquely includes articles on the business aspects of the industry, such as technology commercialization and market analysis, offering a comprehensive perspective on the field.
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