论文标题

用两个超导射频腔进行斧头搜索

Axion Searches with Two Superconducting Radio-frequency Cavities

论文作者

Gao, Christina, Harnik, Roni

论文摘要

我们提出了一个实验设置,以使用两个超导射频腔搜索轴突样颗粒(ALP)。在这种灯光般的墙壁设置中,轴是由带有大字段的两种模式和发射极腔中的非零$ \ vec e \ cdot \ vec b $来源的。在附近的同一腔中,只有一种模式,即观众,而另一个模式是一个安静的信号模式。轴可以将观众模式转换为信号光子。我们讨论了这种设置的物理范围,以发现探索新的ALP参数空间的潜力。如果可以使用高级模式,则​​可以实现增强的灵敏度,这要归功于激发模式与生成的轴向场之间的相匹配。我们还讨论了潜在的泄漏噪声效应及其缓解措施,这是通过观众和信号频率之间的O(GHz)分离的帮助。

We propose an experimental setup to search for Axion-like particles (ALPs) using two superconducting radio-frequency cavities. In this light-shining-through-wall setup the axion is sourced by two modes with large fields and nonzero $\vec E\cdot \vec B$ in an emitter cavity. In a nearby identical cavity only one of these modes, the spectator, is populated while the other is a quiet signal mode. Axions can up-convert off the spectator mode into signal photons. We discuss the physics reach of this setup finding potential to explore new ALP parameter space. Enhanced sensitivity can be achieved if high-level modes can be used, thanks to improved phase matching between the excited modes and the generated axion field. We also discuss the potential leakage noise effects and their mitigation, which is aided by O(GHz) separation between the spectator and signal frequencies.

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