Mesoscopic Josephson effect
Mesoscopic Josephson effect
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DOI：
10.1006/spmi.1999.0739
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发表时间：
1999-05-01
影响因子：
3.1
通讯作者：
Ingold, GL
中科院分区：
文献类型：
--
作者：
Grabert, H;Ingold, GL
在经典的约瑟夫森效应中，跨结的相位差被很好地定义，并且超导电流仅被相位扩散微弱地减少。对于小电容的介观结，相位经历大的量子涨落，并且电流也由于库仑阻塞效应而减小。我们讨论的电流-电压特性的行为在很大的参数范围内，包括相扩散制度与相干约瑟夫森电流以及超电流峰由于非相干库珀对隧穿在库仑阻塞制度。(C)北京：科学出版社.
In the classical Josephson effect the phase difference across the junction is well defined, and the supercurrent is reduced only weakly by phase diffusion. For mesoscopic junctions with small capacitance the phase undergoes large quantum fluctuations, and the current is also decreased by Coulomb blockade effects. We discuss the behavior of the current-voltage characteristics in a large range of parameters comprising the phase diffusion regime with coherent Josephson current as well as the supercurrent peak due to incoherent Cooper pair tunneling in the Coulomb blockade regime. (C) 1999 Academic Press.