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arXiv 1301.6777cond-mat.mes-hall
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整数量子Hall边通道中最小激发的分数化

Fractionalization of minimal excitations in integer quantum Hall edge channels

C. Grenier, J. Dubois, T. Jullien, P. Roulleau, D. C. Glattli, P. Degiovanni

摘要:

本文对洛伦兹脉冲和矩形脉冲的单电子相干特性进行了理论研究。结合玻色化和Floquet散射方法,精确计算了相互作用对周期电压脉冲源的影响。当这种激发被注入到两个共同传播的量子霍尔边缘通道系统的一个通道中时,它们被分成脉冲,其电荷和形状反映了相互作用的性质。我们表明,在脉冲幅度的分数诱导的电子/空穴对生产的依赖性包含清晰的签名的个别激发的分数。我们提出了一个实验装置相结合的洛伦兹脉冲和Hanbury布朗和Twiss干涉仪的源来测量相互作用引起的电子/空穴对生产和更一般地重建单电子的相干性,这些激发之前和之后的细分。

英文摘要:

A theoretical study of the single electron coherence properties of Lorentzian and rectangular pulses is presented. By combining bosonization and the Floquet scattering approach, the effect of interactions on a periodic source of voltage pulses is computed exactly. When such excitations are injected into one of the channels of a system of two copropagating quantum Hall edge channels, they fractionalize into pulses whose charge and shape reflects the properties of interactions. We show that the dependence of fractionalization induced electron/hole pair production in the pulses amplitude contains clear signatures of the fractionalization of the individual excitations. We propose an experimental setup combining a source of Lorentzian pulses and an Hanbury Brown and Twiss interferometer to measure interaction induced electron/hole pair production and more generally to reconstruct single electron coherence of these excitations before and after their fractionalization.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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