Efficient and robust analysis of complex scattering data under noise in microwave resonators
Efficient and robust analysis of complex scattering data under noise in microwave resonators
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DOI：
10.1063/1.4907935
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发表时间：
2015-02-01
影响因子：
1.6
通讯作者：
Weides, M.
中科院分区：
文献类型：
--
作者：
Probst, S.;Song, F. B.;Weides, M.
超导微波谐振器是广泛应用于探测和材料研究的可靠电路。对于许多现代应用来说，可靠地确定它们的外部和内部质量因数是至关重要的，这些应用要么需要快速测量，要么工作在具有小信噪比的单光子区域。在这里，我们使用带直径修正的圆拟合技术，并提供了一种在存在噪声的情况下实现复谐振腔散射数据稳健拟合和校准的算法的逐步指南。分析的加速比和稳健性是通过对共振环采用代数而不是迭代拟合技术来实现的。(C)2015 AIP出版有限责任公司。
Superconducting microwave resonators are reliable circuits widely used for detection and as test devices for material research. A reliable determination of their external and internal quality factors is crucial for many modern applications, which either require fast measurements or operate in the single photon regime with small signal to noise ratios. Here, we use the circle fit technique with diameter correction and provide a step by step guide for implementing an algorithm for robust fitting and calibration of complex resonator scattering data in the presence of noise. The speedup and robustness of the analysis are achieved by employing an algebraic rather than an iterative fit technique for the resonance circle. (C) 2015 AIP Publishing LLC.