论文标题
有限大小的介质环中的量子干扰
Quantum interference in finite-size mesoscopic rings
论文作者
论文摘要
Ginzburg-Landau理论用于对有限大小的介观环的顺序参数进行建模,以研究筛选电流开始对传入的筛查的影响。磁通量通过在环中循环的流动性和顺磁性超电流时通过诱导的空间顺序打破输入和输出存根之间的电流对称性。这些筛选电流的分布驱动传入/传出的超电流的干扰,导致电阻的正弦变化,即使磁通量的函数也是磁通量的函数,即使清单的密度未被外部磁场修改。
The Ginzburg-Landau theory is used to model the order parameter of a finite-size mesoscopic ring to investigate the effects of the onset of screening currents on the transport of incoming ones. The magnetic flux breaks the symmetry of currents between input and output stubs by means of an induced spatial ordering upon diamagnetic and paramagnetic supercurrents circulating in the ring. The distribution of those screening currents drives the interference of incoming/outgoing supercurrents resulting into a sinusoidal variation of resistance as a function of the magnetic flux even if the density of quasiparticles is not modified by the external magnetic field.