Noise enhanced stability in an unstable system

被引：310

作者：

Mantegna, RN ^{[1
]}

Spagnolo, B ^{[1
]}

机构：

[1] UNIV PALERMO, DIPARTIMENTO ENERGET & APPLICAZ FIS, I-90128 PALERMO, ITALY

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 76卷 / 04期

关键词：

D O I：

10.1103/PhysRevLett.76.563

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We experimentally detect noise enhanced stability in an unstable physical system. The average escape time from a metastable, periodically driven, system is measured in the stable and unstable regimes in a noisy environment. In the unstable regime, we measure that the average escape time has a maximum for a finite value of the noise intensity. The scaling properties of the average escape time and of the variance of escape times are compared with the predictions obtained for a system in a marginal state.

引用

页码：563 / 566

页数：4

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