论文标题
希格斯模式的理论$ d $ - 波超导体
Theory of Higgs Modes in $d$-Wave Superconductors
论文作者
论文摘要
通过在$ d $ - 波超导体中应用微观量规不变的动力学理论，我们可以分析得出呼吸higgs模式的能量光谱，尤其是旋转的希格斯模式，该模式是$ d $ - 波订单参数的独特之处。还揭示了对其动态特性的分析研究。我们表明，在二阶制度中，呼吸希格斯模式在光学上可见。尽管旋转的HigGS模式是光学不活跃的，但我们表明可以通过磁共振实验在伪随阶段检测到此模式。有趣的是发现，使用纵向温度梯度，电荷中性旋转的希格斯模式在pseudoGap阶段生成了磁场的热霍尔电流，为其检测提供了独特的方案。
By applying a microscopic gauge-invariant kinetic theory in $d$-wave superconductors, we analytically derive the energy spectra of the breathing Higgs mode and, in particular, rotating Higgs mode that is unique for the $d$-wave order parameter. Analytical investigation on their dynamic properties is also revealed. We show that the breathing Higgs mode is optically visible in the second-order regime. Whereas the rotating Higgs mode is optically inactive, we show that this mode can be detected in the pseudogap phase by magnetic resonance experiment. It is interesting to find that with a longitudinal temperature gradient, the charge-neutral rotating Higgs mode generates a thermal Hall current by magnetic field in the pseudogap phase, providing a unique scheme for its detection.
