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arXiv 1006.4348cond-mat.str-el
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量子霍尔谱中的Half带

Haldane Sashes in Quantum Hall Spectra

A. H. MacDonald

摘要:

我们表明,低温的肩带功能在最低的朗道能级(LLL)隧穿态密度(TDOS)最近发现的Dial和Ashoori是密切相关的离散Haldane赝势相互作用的能量尺度,管理分数量子霍尔物理。我们的分析是基于隧道态密度的表达式,在接近$ν=0$和$ν=1$的填充因子时变得精确,其中窗格结构最突出。我们评论其他方面的LLL相关物理,可以揭示准确的温度依赖性隧穿数据。

英文摘要:

We show that the low-temperature sash features in the lowest Landau-level (LLL) tunneling density-of-states (TDOS) recently discovered by Dial and Ashoori are intimately related to the discrete Haldane-pseudopotential interaction energy scales that govern fractional quantum Hall physics. Our analysis is based on expressions for the tunneling density-of-states which become exact at filling factors close to $ν=0$ and $ν=1$, where the sash structure is most prominent. We comment on other aspects of LLL correlation physics that can be revealed by accurate temperature-dependent tunneling data.

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