OBSERVABLE AND HIDDEN SINGULAR FEATURES OF LARGE FLUCTUATIONS IN NONEQUILIBRIUM SYSTEMS

被引：103

作者：

DYKMAN, MI

MILLONAS, MM

SMELYANSKIY, VN

机构：

[1] MICHIGAN STATE UNIV,DEPT PHYS & ASTRON,E LANSING,MI 48824

[2] LOS ALAMOS NATL LAB,DIV THEORET,LOS ALAMOS,NM 87545

[3] UNIV MICHIGAN,DEPT PHYS,ANN ARBOR,MI 48104

来源：

PHYSICS LETTERS A | 1994年 / 195卷 / 01期

关键词：

D O I：

10.1016/0375-9601(94)90426-X

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study local features, and provide a topological insight into the global structure of the probability density distribution and of the pattern of the optimal paths for large rare fluctuations away from a stable state. In contrast to extremal paths in quantum mechanics, the optimal paths do not encounter caustics. We show how this occurs, and what, instead of caustics, are the experimentally observable singularities of the pattern. We reveal the possibility for a caustic and a switching line to start at a saddle point, and discuss the consequences.

引用

页码：53 / 58

页数：6

共 26 条

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