By connecting light to magnetism, cavity magnon-polaritons (CMPs) can link quantum computation to spintronics. Consequently, CMP-based information processing devices have emerged over the last years, but have almost exclusively been investigated with single-tone spectroscopy. However, universal computing applications will require a dynamic and on-demand control of the CMP within nanoseconds. Here, we perform fast manipulations of the different CMP modes with independent but coherent pulses to the cavity and magnon system. We change the state of the CMP from the energy exchanging beat mode to its normal modes and further demonstrate two fundamental examples of coherent manipulation. We first evidence dynamic control over the appearance of magnon-Rabi oscillations, i.e., energy exchange, and second, energy extraction by applying an anti-phase drive to the magnon. Our results show a promising approach to control building blocks valuable for a quantum internet and pave the way for future magnon-based quantum computing research.

通过将光连接到磁场，腔磁非极化子（CMP）可以将量子计算与自旋电子学联系起来。因此，在过去几年中出现了基于CMP的信息处理设备，但几乎仅使用单调光谱对其进行了研究。但是，通用计算应用程序将需要在纳秒内动态且按需控制CMP。在这里，我们通过对腔体和马农系统的独立但相干的脉冲执行不同CMP模式的快速操作。我们将CMP的状态从能量交换节拍模式更改为其正常模式，并进一步展示了相干操纵的两个基本示例。我们首先证明对磁振拉比振荡的出现进行动态控制，即能量交换，其次，通过对马农施加反相驱动来提取能量。我们的结果表明，一种有前途的方法可以控制对量子互联网有价值的构建基块，并为将来基于磁子的量子计算研究铺平道路。