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arXiv 1405.2660cond-mat.mes-hall
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非均匀Luttinger液体中的时间分辨电荷分馏

Time-resolved charge fractionalization in inhomogeneous Luttinger liquids

E. Perfetto, G. Stefanucci, H. Kamata, T. Fujisawa

摘要:

最近在单一Tomanga-Luttinger液体(TL)中观察到电荷分馏[Kamata等人,自然纳米技术,9 177(2014)]为系统研究这种奇异的量子现象开辟了新的途径。在这封信中,我们对两个相邻的TLLs进行测量,并提出了一个准确的理论框架来解决实验。该理论是基于等离子体激元散射的方法,可以处理注入的电荷脉冲的任意形状的TLL区域。我们准确地再现和解释的时间分辨的多重细分事件在单和双TL。两个TLLs之间的相互关联的效果进行了讨论。

英文摘要:

The recent observation of charge fractionalization in single Tomanga-Luttinger liquids (TLLs) [Kamata et al., Nature Nanotech., 9 177 (2014)] opens new routes for a systematic investigation of this exotic quantum phenomenon. In this Letter we perform measurements on two adjacent TLLs and put forward an accurate theoretical framework to address the experiments. The theory is based on the plasmon scattering approach and can deal with injected charge pulses of arbitrary shape in TLL regions. We accurately reproduce and interpret the time-resolved multiple fractionalization events in both single and double TLLs. The effect of inter-correlations between the two TLLs is also discussed.

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