Nonreciprocity has always been a subject of interest and plays a key role in a variety of applications like signal processing and noise isolation. In this work, we propose a simple and feasible scheme to implement nonreciprocal microwave transmission in a high-quality-factor superconducting cavity with ferrimagnetic materials. We derive necessary requirements to create nonreciprocity in our system where a magnon mode and two microwave modes are coupled to each other, highlighting the adjustability of a static magnetic field controlled nonreciprocal transmission based on quantum interference between different transmission paths, which breaks time-reversal symmetry of the three-mode cavity magnonics system. The high light isolation adjusted within a range of different magnetic fields can be obtained by modulating the photon-magnon coupling strength. Due to the simplicity of the device and the system tunability, our results may facilitate potential applications for light magnetic sensing and coherent information processing.

中文翻译：

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基于量子干涉的磁子介导非互易微波传输

非互易性一直是一个令人感兴趣的主题，并且在信号处理和噪声隔离等各种应用中发挥着关键作用。在这项工作中，我们提出了一种简单可行的方案，以在具有亚铁磁材料的高质量因子超导腔中实现非互易微波传输。我们得出了在我们的系统中创建非互易性的必要要求，其中一个磁振子模式和两个微波模式相互耦合，突出了基于不同传输路径之间的量子干涉的静磁场控制的非互易传输的可调性，这打破了时间反转对称性三模腔磁系统。通过调制光子-磁子耦合强度，可以获得在不同磁场范围内调节的高光隔离度。