论文标题
连贯的多模式转换从微波炉到光波通过镁腔混合系统
Coherent multi-mode conversion from microwave to optical wave via a magnon-cavity hybrid system
论文作者
论文摘要
从微波炉到光波的相干转换为涉及量子通信，计算和感应实验室的长距离量子网络开辟了新的研究途径。尤其是启用多模式的系统对于实际应用至关重要。在这里，我们通过实验表明，通过在单个晶体Yttrium Iron Garnet中的集体自旋激发（YIG，Y3FE5O12）中的集体自旋激发从微波炉到光波，该转换与三维矩形腔中的微波腔模式强烈耦合。我们的镁腔混合系统从基特尔到多磁静态模式的扩展集体自旋激发模式，我们验证YIG球的大小主要在谐振条件下的微波到光学多模式转换效率起着至关重要的作用。我们还发现，多磁静力模式与腔模式之间的耦合强度通过腔内的Yig位置来操纵。预计它对于设计可用于微波和光光子之间相干转换的镁混合动力系统很有价值。
Coherent conversion from microwave to optical wave opens new research avenues towards long distant quantum network covering quantum communication, computing, and sensing out of the laboratory. Especially multi-mode enabled system is essential for practical applications. Here we experimentally demonstrate coherent multi-mode conversion from the microwave to optical wave via collective spin excitation in a single crystal yttrium iron garnet (YIG, Y3Fe5O12) which is strongly coupled to a microwave cavity mode in a three-dimensional rectangular cavity. Expanding collective spin excitation mode of our magnon-cavity hybrid system from Kittel to multi magnetostatic modes, we verify that the size of YIG sphere predominantly plays a crucial role for the microwave-to-optical multi-mode conversion efficiency at resonant conditions. We also find that the coupling strength between multi magnetostatic modes and a cavity mode is manipulated by the position of a YIG inside the cavity. It is expected to be valuable for designing a magnon hybrid system that can be used for coherent conversion between microwave and optical photons.
