论文标题
通过TRIONS的频镜测量探测的分数量子厅边缘的动力学
Dynamics of the fractional quantum Hall edge probed by stroboscope measurements of trions
论文作者
论文摘要
通过使用泵探针频道镜的共聚焦显微镜和光谱的观察，我们在$ \ sim1 $ ps的阶面证明了Trions的动力学和分数量子厅边缘。检测到由电压脉冲激发的量子霍尔边缘状态的传播被检测为在下游边缘的反射率的时间变化，该反射率由与电压脉冲同步的光脉冲探测的下游边缘。这种频道泵探针测量的时间分辨率与探针脉冲的持续时间一样快（$ \ sim1 $ ps）。这种超快速的频镜测量使我们能够区分正常的边缘激发模式（称为边缘磁性平板或电荷密度波浪），以及其他高能非线性激发。这是研究量子大厅边缘的超快速动力学的唯一实验方法，并可以得出$（1+1）= 2 $二维弯曲的量子的Quantum Universe的$ g_ {μν} $的度量张量$ g_ {μν} $。
By using observations from pump-probe stroboscopic confocal microscopy and spectroscopy, we demonstrate the dynamics of trions and the fractional quantum Hall edge on the order of $\sim1$ ps. The propagation of the quantum Hall edge state excited by a voltage pulse is detected as a temporal change in reflectance in the downstream edge probed by optical pulses synchronized with the voltage pulse. The temporal resolution of such stroboscopic pump-probe measurements is as fast as the duration time of the probe pulse ($\sim1$ ps). This ultra-fast stroboscope measurement enables us to distinguish between the normal mode of edge excitation, known as the edge magneto-plasmon or charge density wave, and other high-energy non-linear excitations. This is the only experimental method available to study the ultra-fast dynamics of quantum Hall edges, and makes it possible to derive the metric tensor $g_{μν}$ of the $(1+1)=2$-dimensional curved spacetime in quantum universe and black hole analogs implemented in the quantum Hall edge.
