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arXiv 0908.1970cond-mat.mes-hallcond-mat.str-el
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动量分解隧穿到Pfronan和反Pfronan边缘

Momentum resolved tunneling into the Pfaffian and anti-Pfaffian edges

Alexander Seidel, Kun Yang

摘要:

我们计算了在干净的限制下,摩尔-里德Pfwean和反Pfwean分数量子霍尔态的边缘处的电子光谱函数。我们表明,它们的定性差异可以探测使用动量分辨隧穿,从而提供了一种方法来明确区分哪一个是实现在填充因子$ν=5/2$观察到的分数量子霍尔态。我们进一步认为,边缘重建,这可能是不太重要的第一次激发朗道能级(LL)比在最低的LL,也可以检测到这种方式,如果存在。

英文摘要:

We calculate the electron spectral functions at the edges of the Moore-Read Pfaffian and anti-Pfaffian fractional quantum Hall states, in the clean limit. We show that their qualitative differences can be probed using momentum resolved tunneling, thus providing a method to unambiguously distinguish which one is realized in the fractional quantum Hall state observed at filling factor $ν=5/2$. We further argue that edge reconstruction, which may be less important in the first excited Landau level (LL) than in the lowest LL, can also be detected this way if present.

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