论文标题
量子大厅y连接处的量化电荷分数化在疾病主导的状态下
Quantized charge fractionalization at quantum Hall Y junctions in the disorder-dominated regime
论文作者
论文摘要
分数化是一种现象，其中基本激发分区分为几片。这张照片解释了通过拓扑不同的量子大厅状态定义的一维边缘通道的连接，例如，在Landau级填充因子$ν$ = 2/3。在这里，我们采用时间分辨的方案来识别基本分数化过程。从非相互作用区域注入电荷q进入一维通道的相互作用和散射区域，从而形成了带电荷$（1- \ textit {r}）\ textit {q} $的集体激发，通过反映分数化电荷$ \ textit $ \ textit {rq} $。分数化因子，$ \ textit {r} $ = 0.34 $ \ pm $ 0.03，$ν$ = 2/3和$ \ \ \ textit {r} $ = 0.49 $ \ pm $ 0.03，$ν$ = 2，符合1/3和1/2的量化值，这是一致的。该方案可用于沿着明确的路径生成和运输分数的电荷。
Fractionalization is a phenomenon where an elementary excitation partitions into several pieces. This picture explains non-trivial transport through a junction of one-dimensional edge channels defined by topologically distinct quantum Hall states, for example, a hole-conjugate state at Landau-level filling factor $ν$ = 2/3. Here we employ a time-resolved scheme to identify an elementary fractionalization process; injection of charge q from a non-interaction region into an interacting and scattering region of one-dimensional channels results in the formation of a collective excitation with charge $(1-\textit{r})\textit{q}$ by reflecting fractionalized charge $\textit{rq}$. The fractionalization factors, $\textit{r}$ = 0.34$\pm$0.03 for $ν$ = 2/3 and $\textit{r}$ = 0.49$\pm$0.03 for $ν$ = 2, are consistent with the quantized values of 1/3 and 1/2, respectively, which are expected in the disorder dominated regime. The scheme can be used for generating and transporting fractionalized charges with a well-defined time course along a well-defined path.
