COHERENCE AND INCOHERENCE IN A GLOBALLY COUPLED ENSEMBLE OF PULSE-EMITTING UNITS

被引：82

作者：

GERSTNER, W

VANHEMMEN, JL

机构：

[1] Physik-Department, Technische Universitat München

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 71卷 / 03期

关键词：

D O I：

10.1103/PhysRevLett.71.312

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A general theory of coherent behavior (''locking'') in a globally coupled ensemble of pulse-emitting units is presented. Each unit is modeled as a dynamic threshold device with arbitrary excitability function and noise. The interaction is described by a general linear-response kernel that includes a transmission delay. In the bulk limit, the dynamics is solved exactly. Two types of solutions are studied, viz., coherent states with synchronous activity of all units and incoherent stationary states, and their stability is analyzed in the low-noise limit.

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页码：312 / 315

页数：4

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