论文标题
在螺旋超导体中降低希格斯模式的频率，耦合到LC电路
Reducing the frequency of the Higgs mode in a helical superconductor coupled to an LC-circuit
论文作者
论文摘要
我们表明，具有强的自旋轨道耦合和交换场的超导体的振幅或希格斯模式与电磁场线性线性。此外，通过将这样的超导体耦合到LC谐振器，我们证明了HigGS共振成为一个常规模式，其频率小于Quasiparticle Energy阈值$2δ$。我们最终提出并讨论了基于微波光谱的可能实验，以实现HIGGS模式的明确检测。我们的方法可以允许在更复杂的多播超导体中可视化HIGGS模式，并在电荷和其他电子自由度之间建立耦合。
We show that the amplitude, or Higgs mode of a superconductor with strong spin-orbit coupling and an exchange field, couples linearly to the electromagnetic field. Furthermore, by coupling such a superconductor to an LC resonator, we demonstrate that the Higgs resonance becomes a regular mode at frequencies smaller than the quasiparticle energy threshold $2Δ$. We finally propose and discuss a possible experiment based on microwave spectroscopy for an unequivocal detection of the Higgs mode. Our approach may allow visualizing Higgs modes also in more complicated multiband superconductors with a coupling between the charge and other electronic degrees of freedom.
