FLUXON DYNAMICS IN ONE-DIMENSIONAL JOSEPHSON-JUNCTION ARRAYS

被引：136

作者：

USTINOV, AV

CIRILLO, M

MALOMED, BA

机构：

[1] TEL AVIV UNIV,SCH MATH SCI,DEPT APPL MATH,IL-69978 TEL AVIV,ISRAEL

[2] RUSSIAN ACAD SCI,INST SOLID STATE PHYS,CHERNOGOLOVKA 142432,RUSSIA

来源：

PHYSICAL REVIEW B | 1993年 / 47卷 / 13期

关键词：

D O I：

10.1103/PhysRevB.47.8357

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Current-voltage characteristics of an annular array of small Josephson junctions with different values of single-loop inductances are calculated numerically and compared with that for a continuum annular Josephson junction. The resonances between the moving fluxon and the linear waves caused by the array discreteness induce steps on the current-voltage characteristics which do not exist in the continuum case. The voltage position of the steps is found to be in good agreement with the kinematic approach based on the Frenkel-Kontorova model. Our results show that in Josephson devices the discreteness may lead to strong superradiant emission of electromagnetic waves by moving fluxons.

引用

页码：8357 / 8360

页数：4

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