论文标题
通过玻色子模式控制Yu-Shiba-Rusinov
Control of Yu-Shiba-Rusinov States through a Bosonic Mode
论文作者
论文摘要
我们研究了骨体的自由度对Yu-Shiba-Rusinov（YSR）状态的影响，从传统超导体中出现的磁杂质出现。从安德森杂质模型开始，我们预测，如果波斯子模式与杂质和宿主之间的隧道耦合，则额外的P-波传导带通道会打开，这意味着另外一对奇数差异YSR状态。玻感模式可以是振动模式或腔中的电磁场。两个通道中的交换耦合敏感地取决于骨气模式的状态（基态，很少的Quanta或经典驱动的Floquet状态），这为对此类系统的语音或光子学控制打开了具有丰富种类的地面和激发态的可能性。
We investigate the impact of a bosonic degree of freedom on Yu-Shiba-Rusinov (YSR) states emerging from a magnetic impurity in a conventional superconductor. Starting from the Anderson impurity model, we predict that an additional p-wave conduction band channel opens up if a bosonic mode is coupled to the tunnelling between impurity and host, which implies an additional pair of odd-parity YSR states. The bosonic mode can be a vibrational mode or the electromagnetic field in a cavity. The exchange couplings in the two channels depend sensitively on the state of the bosonic mode (ground state, few quanta or classically driven Floquet state), which opens possibilities for phononics or photonics control of such systems, with a rich variety of ground and excited states.
