arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2108.00976cond-mat.supr-concond-mat.mes-hall
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基于约瑟夫森的微波光子探测方案

Josephson-based scheme for the detection of microwave photons

Claudio Guarcello, Alex Stephane Piedjou Komnang, Carlo Barone, Alessio Rettaroli, Claudio Gatti, Sergio Pagano, Giovanni Filatrella

摘要:

本文从统计判决理论的观点出发,提出了一种通过电流偏置约瑟夫森结探测微波感生光子的方案。我们的分析是基于零电压寿命分布响应于一个周期性的脉冲训练,模仿光子的吸收的数值研究。检测的统计特性检索比较的热致跃迁的分布的开关到有限的电压状态,由于热噪声和入射脉冲的联合作用。区分光子到达的能力可以通过Kumar-Paddel指数来量化,Kumar-Paddel指数是信噪比的良好指标。该指数可以用来确定最适合于检测弱微波光子的系统参数。

英文摘要:

We propose a scheme for the detection of microwave induced photons through current-biased Josephson junction, from the point of view of the statistical decision theory. Our analysis is based on the numerical study of the zero voltage lifetime distribution in response to a periodic train of pulses, that mimics the absorption of photons. The statistical properties of the detection are retrieved comparing the thermally induced transitions with the distribution of the switchings to the finite voltage state due to the joint action of thermal noise and of the incident pulses. The capability to discriminate the photon arrival can be quantified through the Kumar-Caroll index, which is a good indicator of the Signal-to-Noise-Ratio. The index can be exploited to identify the system parameters best suited for the detection of weak microwave photons.

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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