PHASE-LOCKING CHAOS IN LONG JOSEPHSON-JUNCTIONS

被引：16

作者：

SALERNO, M

机构：

[1] Dipartimento di Fisica Teorica, Università di Salerno

来源：

PHYSICS LETTERS A | 1990年 / 144卷 / 8-9期

关键词：

D O I：

10.1016/0375-9601(90)90513-N

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The dynamical behaviour of a fluxon in a long Josephson junction in the presence of an external microwave field is studied by means of a two dimensional map. The map shows that fluxon oscillations may become chaotic through a sequence of period doubling bifurcations. This chaos appears in the central portion of a subharmonic rf-induced step in the current-voltage characteristic and may be observable in a real junction both as a deformation of the step and as a broadening of the linewidth of the emitted radiation, as the bias point is moved from the edges toward the centre of the step. © 1990.

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页码：453 / 458

页数：6

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