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arXiv 1801.03311cond-mat.supr-con
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微波对超导体动力学电感探测和参量放大的影响

The effect of microwaves on superconductors for kinetic inductance detection and parametric amplification

Alexander V Semenov, Igor A Devyatov, Marc P Westig, Teunis M Klapwijk

摘要:

我们地址,使用超导微观理论的概念,参量放大器和动力学电感探测器专注于微波辐射与超导冷凝物的相互作用。这种相互作用最近被确定为微波超导微谐振器在低温下的表观耗散的来源。由于仅基于微波响应的实际设备的性能的评估是不够的信息有关的基本物理过程,我们提出了一个实验系统来测量微观相关的光谱函数以及微波驱动的超导导线的非平衡分布函数。结果表明,常用的唯象理论的局限性,为进一步优化性能提供了基础。

英文摘要:

We address, using concepts of the microscopic theory of superconductivity, parametric amplifiers and kinetic inductance detectors focusing on the interaction of microwave radiation with the superconducting condensate. This interaction was identified recently as the source of the apparent dissipation in microwave superconducting micro-resonators at low temperatures. Since the evaluation of the performance of practical devices based only on the microwave-response is not sufficiently informative about the underlying physical processes, we propose an experimental system to measure the microscopically relevant spectral functions as well as the non-equilibrium distribution function of a microwave-driven superconducting wire. The results indicate the limits of the commonly used phenomenological theories, providing the groundwork for further optimisation of the performance.

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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