We propose a novel technique to search for axions with an optomechanical cavity filled with a material such as superfluid helium. Axion absorption converts a pump laser photon to a photon plus a phonon. The axion absorption rate is enhanced by the high occupation number of coherent photons or phonons in the cavity, allowing our proposal to largely overcome the extremely small axion coupling. The axion mass probed is set by the relative frequency of the photon produced in the final state and the Stokes mode. Because neither the axion mass nor momentum need to be matched to the physical size of the cavity, we can scale up the cavity size while maintaining access to a wide range of axion masses (up to a meV) complementary to other cavity proposals.

中文翻译：

---

使用光机械腔进行轴子检测


我们提出了一种利用充满超流氦等材料的光机械腔来寻找轴子的新技术。轴子吸收将泵浦激光光子转换为光子加声子。腔内相干光子或声子的高占据数量提高了轴子吸收率，使我们的建议在很大程度上克服了极小的轴子耦合。探测的轴子质量由最终状态产生的光子的相对频率和斯托克斯模式设置。由于轴子质量和动量都不需要与腔的物理尺寸相匹配，因此我们可以扩大腔的尺寸，同时保持获得与其他腔建议互补的各种轴子质量（高达一兆电子伏）。