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arXiv 2403.13554physics.ins-dethep-ex
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用于超轻暗物质晕镜及其他基础物理实验的超导微波探测器技术:背景理论(第一部分)

Superconducting Microwave Detector Technology for Ultra-Light Dark Matter Haloscopes and other Fundamental Physics Experiments: Background Theory (Part I)

Christopher N. Thomas, Stafford Withington, David J. Goldie

AI总结:

本文探讨了超导微波探测器技术在腔轴子晕镜等基础物理实验读出中的应用,推导了色散光谱仪和零差接收机两种方案的灵敏度,指出零差方案有望近期实现近量子噪声限制接收机,而色散光谱仪有望突破量子噪声极限但需进一步技术开发。

摘要:

我们考虑如何将超导微波探测器技术应用于腔轴子晕镜及类似基础物理实验的读出。推导了两种检测方案的灵敏度表达式:1)色散光谱仪,2)使用探测器作为混频元件的直接转换/零差接收机。两种情况均使用半经典/泊松混合方法来解释量子效应。进行了初步灵敏度计算以指导未来的开发工作。这些计算表明,与参量放大器相比,零差方案为实现具有更高可用性的近量子噪声限制接收机提供了一种近期解决方案。同样,它们表明色散光谱仪提供了一种克服量子噪声极限的潜在途径,但需要重大的技术开发工作才能实现。

英文摘要:

We consider how superconducting microwave detector technology might be applied to the readout of cavity-axion haloscopes and similar fundamental physics experiments. Expressions for the sensitivity of two detection schemes are derived: 1) a dispersive spectrometer, and 2) a direct-conversion/homodyne receiver using detectors as mixing elements. In both cases the semi-classical/Poisson-mixture approach is used to account for quantum effects. Preliminary sensitivity calculations are performed to guide future development work. These suggest the homodyne scheme offers a near-term solution for realising near-quantum-noise limited receivers with improved usability compared with parametric amplifiers. Similarly, they show that the dispersive spectrometer offers a potential way to beat the quantum noise limit, but that significant technological development work is needed to do so.

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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