Real-time and space visualization of excitations of the nu=3 fractional quantum Hall edge
Real-time and space visualization of excitations of the nu=3 fractional quantum Hall edge
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nu=3 分数量子霍尔边缘激发的实时和空间可视化
DOI：
10.1103/physrevresearch.4.l012040
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发表时间：
2022
影响因子：
4.2
通讯作者：
Yusa Go
中科院分区：
文献类型：
--
作者：
Kamiyama Akinori;Matsuura Masahiro;Moore John N.;Mano Takaaki;Shibata Naokazu;Yusa Go
我们提出扫描光学频闪共聚焦显微镜和光谱测量，其中三个自由度，即能量，真实空间和实时，是可分辨的。边缘态传播是作为下游边缘的光响应的时间变化来检测的。我们成功地可视化了最基本分数量子霍尔态的激发态和边缘附近的集体激发态。结果验证了目前对边缘激励的理解，并指出了边缘通道外的进一步动力学。
We present scanning optical stroboscopic confocal microscopy and spectroscopy measurements wherein three degrees of freedom, namely, energy, real space, and real time, are resolvable. The edge-state propagation is detected as a temporal change in the optical response in the downstream edge. We succeeded in visualizing the excited states of the most fundamental fractional quantum Hall state and the collective excitations near the edge. The results verify the current understanding of the edge excitation and also point toward further dynamics outside the edge channel.