On the origin of traveling pulses in bistable systems

被引：44

作者：

Elphick, C

Hagberg, A

Malomed, BA

Meron, E

机构：

[1] LOS ALAMOS NATL LAB, CTR NONLINEAR STUDIES & T7, DIV THEORET, LOS ALAMOS, NM 87545 USA

[2] TEL AVIV UNIV, FAC ENGN, DEPT INTERDISCIPLINARY STUDIES, IL-69978 RAMAT AVIV, ISRAEL

[3] BEN GURION UNIV NEGEV, JACOB BLAUSTEIN INST DESERT RES, IL-84990 SEDE BOQER, ISRAEL

[4] BEN GURION UNIV NEGEV, DEPT PHYS, IL-84990 SEDE BOQER, ISRAEL

来源：

PHYSICS LETTERS A | 1997年 / 230卷 / 1-2期

关键词：

D O I：

10.1016/S0375-9601(97)00228-4

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The interaction between a pair of Bloch fronts forming a traveling domain in a bistable medium is studied. A parameter range beyond the nonequilibrium Ising-Bloch bifurcation is found where traveling domains collapse. Only beyond a second threshold the repulsive front interactions become strong enough to balance attractive interactions and asymmetries in front speeds, and form stable traveling pulses, The analysis is carried out for the forced complex Ginzburg-Landau equation. Similar qualitative behavior is found in the bistable FitzHugh-Nagumo model. (C) 1997 Published by Elsevier Science B.V.

引用

页码：33 / 37

页数：5

共 31 条

[1] PARAMETRIC RESONANCE IN RAYLEIGH-BENARD CONVECTION WITH CORRUGATED GEOMETRY [J].