The potential of photon-magnon hybrid systems as building blocks for quantum information science has been widely demonstrated, and it is still the focus of much research. We leverage the strengths of this unique heterogeneous physical system in the field of precision physics beyond the standard model, where the sensitivity to the so-called “invisibles” is currently being boosted by quantum technologies. Here, we demonstrate that quanta of spin waves, induced by effective magnetic fields, can be detected in a large frequency band using a hybrid system as transducer. This result can be applied to the search of cosmological signals related, for example, to cold Dark Matter, which may directly interact with magnons. Our model of the transducer is based on a second-quantisation two-oscillators hybrid system, it matches the observations, and can be easily extended to thoroughly describe future large-scale ferromagnetic haloscopes.

光子—磁振子混合系统作为量子信息科学基础的潜力已经得到了广泛的证明，它仍然是许多研究的重点。除了标准模型外，我们还利用了这种独特的异构物理系统在精密物理学领域的优势，而标准模型目前正通过量子技术来提高对所谓“不可见物质”的敏感性。在这里，我们证明了使用混合系统作为换能器，可以在较大的频带中检测到由有效磁场引起的自旋波的量子。该结果可用于搜索与冷物质有关的宇宙信号，例如，冷物质可能直接与马农相互作用。我们的换能器模型基于第二个量化的两个振子混合系统，它与观测值相匹配，