AI 中文总结
该研究在混合磁振子系统中，通过双音弗洛奎特调制调控相对相位θ，实现了现有系统不存在的非对称模式耦合，为可控非互易和拓扑功能开辟了新路径。
AI 中文摘要
在混合磁振子系统中，线性磁振子-光子杂化本征会产生对称的互易相互作用，排除了非对称模式耦合。弗洛奎特驱动可调控模式耦合强度，但单音调制下必然产生保留该互易性的对称相互作用。本文引入双音弗洛奎特调制，为混合磁振子系统解锁新自由度，其中两个同频驱动的相对相位θ可连续调控弗洛奎特工程相互作用的非对称性，实现现有混合磁振子系统中不存在的非对称模式耦合。我们在强耦合腔磁振子器件中验证了这一点，调节θ可可逆切换两种杂化模式间的单侧奥特勒-汤斯分裂，这是相位可编程非对称耦合的直接光谱特征。该方法为混合磁振子系统中可控非互易和拓扑功能开辟了新路径，对高级量子和经典信号处理具有广泛意义。
英文摘要
In hybrid magnonic systems, linear magnon--photon hybridization inherently produces symmetric, reciprocal interactions, precluding asymmetric mode coupling. Floquet driving can tailor mode coupling strengths but, with single-tone modulation, inevitably generates a symmetric interaction that preserves this reciprocity. Here we introduce dual-tone Floquet modulation to unlock a new degree of freedom in hybrid magnonic systems, where the relative phase $θ$ of two commensurate drives continuously controls the asymmetry of the Floquet-engineered interaction, enabling asymmetric mode coupling absent in existing hybrid magnonic systems. We demonstrate this in a strongly coupled cavity magnonic device, where tuning $θ$ reversibly switches single-sided Autler--Townes splitting between the two hybrid modes---a direct spectroscopic signature of phase-programmable asymmetric coupling. This approach opens a new path toward controllable nonreciprocal and topological functionalities in hybrid magnonic systems, with broad implications for advanced quantum and classical signal processing.
Comments16 pages, 10 figures
