Quantum Tunnelling in Small-Capacitance Josephson Junctions in a General Electromagnetic Environment
Quantum Tunnelling in Small-Capacitance Josephson Junctions in a General Electromagnetic Environment
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一般电磁环境中小电容约瑟夫森结的量子隧道
DOI：
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发表时间：
1991
期刊：
影响因子：
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通讯作者：
G. Schön
中科院分区：
文献类型：
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作者：
G. Falci;V. Bubanja;G. Schön
小电容正常隧道结中单电子的隧道效应已被证明受到电动力环境波动的影响。我们研究了具有任意阻抗的外部电路对电压驱动约瑟夫森结中准粒子隧道效应的影响，并发现比正常结更显着的影响。我们还讨论了有限温度下环境对库珀对隧道效应的影响。
The tunnelling of single electrons in small-capacitance normal tunnel junctions has been shown to be influenced by the fluctuations of the electrodynamic environment. We study the effect of an external circuit with arbitrary impedance on the tunnelling of quasi-particles in voltage-driven Josephson junctions and find even more dramatic effects than in normal junctions. We also discuss the influence of the environment on the tunnelling of Cooper pairs at finite temperatures.