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arXiv 0910.2476cond-mat.mes-hall
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相互作用引起的边缘沟道平衡

Interaction induced edge channel equilibration

Anders Mathias Lunde, Simon E. Nigg, Markus Buttiker

摘要:

利用运动方程方法,得到了两个库仑耦合手征边缘态的电子分布函数。我们发现,弛豫,从而两个边缘状态之间的能量交换是由在量子点接触(QPC)产生的边缘状态的散粒噪声。在QPC附近,我们推导出分布函数的解析表达式。我们进一步给出了一个迭代程序,我们可以计算数值分布函数任意远离QPC。我们的结果进行了比较,最近的实验Le Sueur等人。

英文摘要:

The electronic distribution functions of two Coulomb coupled chiral edge states forming a quasi-1D system with broken translation invariance are found using the equation of motion approach. We find that relaxation and thereby energy exchange between the two edge states is determined by the shot noise of the edge states generated at a quantum point contact (QPC). In close vicinity to the QPC, we derive analytic expressions for the distribution functions. We further give an iterative procedure with which we can compute numerically the distribution functions arbitrarily far away from the QPC. Our results are compared with recent experiments of Le Sueur et al..

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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