论文标题
强烈的片上微波光子 - 马格农耦合，使用超低阻尼外延Y3FE5O12胶片在2 kelvin处
Strong On-Chip Microwave Photon-Magnon Coupling Using Ultra-low Damping Epitaxial Y3Fe5O12 Films at 2 Kelvin
论文作者
论文摘要
Y3FE5O12可以说是宏伟的量子信息科学（QIS）的最佳磁性材料，因为它的阻尼极低。我们报告了在diamagnetic Y3SC2GA3O12基板上生长的外延Y3FE5O12薄膜中2 K处的超低阻尼，该薄膜不包含稀土元素。使用这些超流膜的YIG膜，我们首次证明了在模式的Yig薄膜中的磁蛋白和超导NB谐振器中的Microwave光子之间的强耦合。该结果铺平了通向可扩展的杂种量子系统的道路，该系统将微波谐振器，YIG膜磁通导管和超导量子台整合到芯片QIS设备中。
Y3Fe5O12 is arguably the best magnetic material for magnonic quantum information science (QIS) because of its extremely low damping. We report ultralow damping at 2 K in epitaxial Y3Fe5O12 thin films grown on a diamagnetic Y3Sc2Ga3O12 substrate that contains no rare-earth elements. Using these ultralow damping YIG films, we demonstrate for the first time strong coupling between magnons in patterned YIG thin films and microwave photons in a superconducting Nb resonator. This result paves the road towards scalable hybrid quantum systems that integrate superconducting microwave resonators, YIG film magnon conduits, and superconducting qubits into on-chip QIS devices.
