Noise-enhanced multistability in coupled oscillator systems

被引：80

作者：

Kim, S

Park, SH

Ryu, CS

机构：

[1] Research Department, Electronics and Telecommunications Research Institute, Taejon, 305-600, P.O. Box 106, Yusong-gu

来源：

PHYSICAL REVIEW LETTERS | 1997年 / 78卷 / 09期

关键词：

D O I：

10.1103/PhysRevLett.78.1616

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study nonequilibrium phenomena in a globally coupled oscillator system with a third harmonic pinning force in the presence of an additive noise and a fluctuating interaction. The system shows a subcritical saddle-node bifurcation from an asymmetric state to a symmetric state at a critical noise intensity leading to multistable states. The fluctuating interaction increases the critical noise intensity and thus enhances the multistability drastically. We show phase diagrams and discuss the nature of the phase transition.

引用

页码：1616 / 1619

页数：4

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