论文标题

带有隧道屏障的三端混沌系统中的电子传输

Electronic transport in three-terminal chaotic systems with a tunnel barrier

论文作者

Oliveira, Lucas H., Barbosa, Anderson L. R., Novaes, Marcel

论文摘要

我们考虑了通过弹道介质系统具有混乱动力学的电子量子传输的问题,该系统与三末端结构有关,其中一个末端具有隧道屏障。使用基于矩阵积分的半经典近似值,我们计算了几个传输统计数据,例如电导的平均值和差异,平均射击力等等,除其他外,这些统计量可以访问损坏和完整的时间逆向对称性的极端量子状态(终端中的小通道数),传统的随机矩阵接近。作为应用程序,我们对待剥离制度。

We consider the problem of electronic quantum transport through ballistic mesoscopic systems with chaotic dynamics, connected to a three-terminal architecture in which one of the terminals has a tunnel barrier. Using a semiclassical approximation based on matrix integrals, we calculate several transport statistics, such as average and variance of conductance, average shot-noise power, among others, that give access to the extreme quantum regime (small channel numbers in the terminal) for broken and intact time-reversal symmetry, which the traditional random matrix approach does not access. As an application, we treat the dephasing regime.

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