论文标题
在三个非线性QPC电导的“异常”测量
On Three "Anomalous" Measurements of Nonlinear QPC Conductance
论文作者
论文摘要
基于量子点接触（QPC）的实用介观设备必须在涉及大型内部驾驶场的操作点起作用。实验证据已积累以显示QPC响应异常的非线性特征，超出了公认的基于隧道的非线性量子传输模型的能力。在这里，我们回想起三个异常QPC实验的物理设置，并回顾了其中两个基于显微镜的非量子量子动力学描述（至关重要的正确的物理边界条件）如何克服了标准非验证介质模型的预测限制。第三个实验仍然是所有理论家的重大挑战。
Practical mesoscopic devices based on quantum point contacts (QPCs) must function at operating point involving large internal driving fields. Experimental evidence has accumulated to display anomalous nonlinear features of QPC response beyond the capacities of accepted tunnelling-based models of nonlinear quantum transport. Here we recall the physical setting of three anomalous QPC experiments and review how, for two of them, a microscopically based nonequilibrium quantum kinetic description (the correct physical boundary conditions being crucial) has already overcome the predictive limitations of standard nonequilibrium mesoscopic models. The third experiment remains a significant challenge to all theorists.
