Josephson vortex in a ratchet potential: Theory

被引：102

作者：

Goldobin, E ^{[1
]}

Sterck, A

Koelle, D

机构：

[1] Forschungszentrum Julich, Inst Schicht & Ionentech, D-52425 Julich, Germany

[2] Univ Cologne, Inst Phys 2, D-50937 Cologne, Germany

来源：

PHYSICAL REVIEW E | 2001年 / 63卷 / 03期

关键词：

D O I：

10.1103/PhysRevE.63.031111

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

We propose a type of Josephson vortex ratchet. In this system a Josephson vortex moves in a periodic asymmetric potential under the action of a deterministic or random force with zero time average. For some implementations the amplitude of the potential can be controlled during the experiment, thus allowing us to tune the performance of the system and build rocking as well as flashing ratchets. We discuss the differences between conventional and Josephson vortex ratchets and present a model describing the dynamics of the fluxon in such a system. We show numerical simulation results that predict rectification of a monochromatic, deterministic signal with zero time average. The investigation of this system may lead to the development of the fluxon rectifier-a device that produces a de voltage from nonequilibrium fluctuations.

引用

页码：031111 / 031111

页数：10

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