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arXiv 1106.4440cond-mat.mes-hall
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电子法布里-珀罗干涉仪中库仑相互作用对Aharonov-Bohm效应的影响

Influence of Coulomb interaction on the Aharonov-Bohm effect in an electronic Fabry-Perot interferometer

Stephane Ngo Dinh, Dmitry A. Bagrets

摘要:

研究了在弱背散射极限下,库仑相互作用在整数量子霍尔机制中手征边缘态实现的电子法布里-珀罗干涉仪(FPI)中的作用。假设一个可压缩的库仑岛在FPI的散装区域形成,我们开发了一个电容模型,解释了过多的实验数据的通量和栅极周期性的电导振荡。它还表明,有限偏置的可见性的抑制源于弱库仑阻塞和量子散粒噪声的非平衡移相的组合。

英文摘要:

We study the role of Coulomb interaction in an electronic Fabry-Perot interferometer (FPI) realized with chiral edge states in the integer quantum Hall regime in the limit of weak backscattering. Assuming that a compressible Coulomb island in a bulk region of the FPI is formed, we develop a capacitance model which explains the plethora of experimental data on the flux and gate periodicity of conductance oscillations. It is also shown that a suppression of finite-bias visibility stems from a combination of weak Coulomb blockade and a nonequilibrium dephasing by the quantum shot noise.

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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