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arXiv 2209.09629cond-mat.mes-hallmath-phmath.MPquant-ph
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量子霍尔效应的边界条件

Boundary conditions for the quantum Hall effect

Giuliano Angelone, Manuel Asorey, Paolo Facchi, Davide Lonigro, Yisely Martinez

摘要:

建立了无限长带上整数量子霍尔效应的自洽模型,利用边界条件研究了有限尺寸效应对霍尔电导率的影响.通过利用沿带的平移对称性,我们确定了系统的一般谱性质的一大类边界条件尊重这种对称性,和(纤维)罗宾边界条件的全谱。特别是,我们发现,后者引入了一种新的状态,没有经典的类似物,并添加了更精细的结构的量子化模式的霍尔电导率。此外,我们的模型还预测了量子霍尔效应在高值的施加电场的击穿。

英文摘要:

We formulate a self-consistent model of the integer quantum Hall effect on an infinite strip, using boundary conditions to investigate the influence of finite-size effects on the Hall conductivity. By exploiting the translation symmetry along the strip, we determine both the general spectral properties of the system for a large class of boundary conditions respecting such symmetry, and the full spectrum for (fibered) Robin boundary conditions. In particular, we find that the latter introduce a new kind of states with no classical analogues, and add a finer structure to the quantization pattern of the Hall conductivity. Moreover, our model also predicts the breakdown of the quantum Hall effect at high values of the applied electric field.

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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