论文标题
重新定义SI的量子厅研究的历史背景和前景
Historical Context and Outlook of Quantum Hall Research for the Redefined SI
论文作者
论文摘要
为了充分理解量子大厅效应对电量计量学的发现的影响,培养对现象的一般理解可能会使读者受益。二维电子系统可以表现出许多有趣的量子现象。当将QHE放置在垂直于系统平面的强磁场下时,可以通过2D电子系统展示。这些条件允许量化量化,或者允许受磁场影响的电子能量的离散化。这些通过求解Schrödinger方程确定的能量值称为Landau水平。在QHE测量过程中,人们将霍尔电阻RXY定义为垂直于所施加电流方向的测量电压,除以相同的电流。当RXY接近量化值时,特征性纵向电阻率\ r {ho {ho {ho} xx变为零(名义上称为高原)。
To fully appreciate the impacts that the discovery of the quantum Hall effect had on electrical metrology, it may benefit the reader to cultivate a general understanding of the phenomenon. Two-dimensional electron systems can exhibit many interesting quantum phenomena. The QHE may be exhibited by a 2D electron system when placed under a strong magnetic field perpendicular to the plane of the system. These conditions allow for Landau quantization, or the discretization of available energies of the electrons affected by the magnetic field. These energy values, determined by solving the Schrödinger equation, are known as Landau levels. During the course of a QHE measurement, one defines the Hall resistance Rxy as the measured voltage, perpendicular to the direction of the applied current, divided by that same current. The characteristic longitudinal resistivity \r{ho}xx goes to zero as Rxy approaches a quantized value (nominally called a plateau).