Thermodynamics and I-V characteristics of resistance-shunted Josephson junctions

被引：0

作者：

Kato, T ^{[1
]}

Imada, M ^{[1
]}

机构：

[1] Univ Tokyo, Inst Solid State Phys, Minato Ku, Tokyo 1068666, Japan

来源：

PHYSICA B | 2000年 / 284卷

关键词：

Coulomb blockade; dissipation; Josephson junction; superconductor-insulator transition;

D O I：

10.1016/S0921-4526(99)03033-1

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Resistance-shunted Josephson junctions are studied theoretically based on a tight-binding model. In addition to the effective bandwidth 2h Delta(eff), this multi-level system genuinely has a novel crossover at lower energy Kh Delta(eff) below which the density of states becomes strongly degenerate, where K is a dimensionless damping strength. The optical responses take nearly Lorentzian forms with a width of the order of Kh Delta. The non-linear I-V characteristics is also discussed. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：1820 / 1821

页数：2

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