Capacitively coupled Josephson-junction chains: straight and slanted coupling
介观与纳米尺度物理
2009-10-31 v1 超导电性
摘要
Two chains of ultrasmall Josephson junctions, coupled capacitively with each other in the two different ways, straight and slanted coupling, are considered. As the coupling capacitance increases, regardless of the coupling scheme, the transport of particle-hole pairs in the system is found to drive the quantum-phase transition at zero temperature, which is a insulator-to-superfluid transition of the particle-hole pairs and belongs to the Berezinskii-Kosterlitz-Thouless universal class. The different underlying transport mechanisms for the two coupling schemes are reflected in the difference between the transition points.
引用
@article{arxiv.cond-mat/9802237,
title = {Capacitively coupled Josephson-junction chains: straight and slanted coupling},
author = {Mahn-Soo Choi},
journal= {arXiv preprint arXiv:cond-mat/9802237},
year = {2009}
}
备注
REVTeX + 7 EPS figures, detailed version of cond-mat/9802199