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arXiv 2103.02109quant-ph
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可编程纳米光子芯片上的多光子量子线路

Quantum circuits with many photons on a programmable nanophotonic chip

J. M. Arrazola, V. Bergholm, K. Brádler, T. R. Bromley, M. J. Collins, I. Dhand, A. Fumagalli, T. Gerrits, A. Goussev, L. G. Helt, J. Hundal, T. Isacsson, R. B.… 展开作者

J. M. Arrazola, V. Bergholm, K. Brádler, T. R. Bromley, M. J. Collins, I. Dhand, A. Fumagalli, T. Gerrits, A. Goussev, L. G. Helt, J. Hundal, T. Isacsson, R. B. Israel, J. Izaac, S. Jahangiri, R. Janik, N. Killoran, S. P. Kumar, J. Lavoie, A. E. Lita, D. H. Mahler, M. Menotti, B. Morrison, S. W. Nam, L. Neuhaus, H. Y. Qi, N. Quesada, A. Repingon, K. K. Sabapathy, M. Schuld, D. Su, J. Swinarton, A. Száva, K. Tan, P. Tan, V. D. Vaidya, Z. Vernon, Z. Zabaneh, Y. Zhang

摘要:

对用于实际应用的量子计算的日益增长的兴趣已经导致用于执行量子算法的可编程机器的可用性激增。目前的光子量子计算机要么局限于非确定性操作,低光子数和速率,或固定的随机门序列。在这里,我们介绍了一个全栈硬件软件系统,用于执行多光子量子线路使用集成纳米光子:可编程芯片,在室温下运行,并与全自动控制系统接口。它使远程用户能够执行量子算法,需要多达八种模式的强压缩真空初始化为单时间模式的双模压缩态,一个完全通用和可编程的四模式干涉仪,以及所有输出上的真正光子数解析读出。强压缩和高采样率使得光子数和速率超过任何先前在可编程器件上的量子光学演示的多光子探测事件成为可能。我们验证了设备输出的非经典性,并使用该平台进行了三种量子算法的原理验证:高斯玻色子采样,分子振动光谱和图形相似性。

英文摘要:

Growing interest in quantum computing for practical applications has led to a surge in the availability of programmable machines for executing quantum algorithms. Present day photonic quantum computers have been limited either to non-deterministic operation, low photon numbers and rates, or fixed random gate sequences. Here we introduce a full-stack hardware-software system for executing many-photon quantum circuits using integrated nanophotonics: a programmable chip, operating at room temperature and interfaced with a fully automated control system. It enables remote users to execute quantum algorithms requiring up to eight modes of strongly squeezed vacuum initialized as two-mode squeezed states in single temporal modes, a fully general and programmable four-mode interferometer, and genuine photon number-resolving readout on all outputs. Multi-photon detection events with photon numbers and rates exceeding any previous quantum optical demonstration on a programmable device are made possible by strong squeezing and high sampling rates. We verify the non-classicality of the device output, and use the platform to carry out proof-of-principle demonstrations of three quantum algorithms: Gaussian boson sampling, molecular vibronic spectra, and graph similarity.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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