Efficient Tunable Microwave Single-photon Source Based on Transmon Qubit

Yu Zhou, Zhihui Peng, Yuta Horiuchi, O. Astafiev, J. Tsai
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引用次数: 1

Abstract

Single-photon sources of high efficiency are of great interest because they are the key elements in many prospective quantum technologies and applications. Based on our previous work, here we demonstrate a high-quality tunable microwave single-photon source based on transmon qubit with intrinsic emission efficiency more than 99%. To further confirm the single-photon property of the source, we study the single-photon interference in a Hanbury-Brown-Twiss (HBT) type setup and measure the correlation functions of the emission field using linear detectors with GPU-enhanced signal processing technique. The antibunching in second-order correlation function is clearly observed. The theoretical calculations agree well with the experimental results. Such a high-quality single-photon source may be used as a building block for quantum communication, simulation and information processing in microwave regime.
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基于Transmon量子比特的高效可调谐微波单光子源
高效率的单光子源是许多未来量子技术和应用的关键因素,因此引起了人们的极大兴趣。在前人工作的基础上,我们展示了一种高质量的可调谐微波单光子源,其固有发射效率超过99%。为了进一步确认源的单光子特性,我们研究了Hanbury-Brown-Twiss (HBT)型装置中的单光子干涉,并使用带有gpu增强信号处理技术的线性探测器测量了发射场的相关函数。二阶相关函数具有明显的反束性。理论计算与实验结果吻合较好。这种高质量的单光子源可以作为微波环境下量子通信、模拟和信息处理的基石。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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