摘要
基于电荷的离散性,运用最小平移算符的性质,研究介观电子谐振腔中量子电流的性质,给出量子Kirch-hoff方程、量子电流关系式以及电流的量子涨落.结果表明,基于电荷量子化的事实,谐振腔中电荷具有量子振荡行为,量子电流关系及其量子涨落分别与电荷量子、Planck常数等有关,大小决定于体系的自感参量.
On the basis of charge discreteness,the properties of quantum current in a mesoscopic electron resonator are investigated by the minimum shift operator. Quantum Kirchhoff＇s equation, the current relation, and the fluctuations of current are given. The results show that when charge quantization is taken into account, the charge in the resonator has the characteristic of quantum vibration; the quantum current and the fluctuation are related to the charge quantum and Planck constant,respectively,and the size is determined by the self-inductance of the system.
基金
江苏省教育厅自然科学基金资助项目(批准号:05KJD140035)~~
