Convective Lyapunov exponents and propagation of correlations

被引：26

作者：

Giacomelli, G

Hegger, R

Politi, A

Vassalli, M

机构：

[1] Ist Nazl Ott Applicata, I-50125 Florence, Italy

[2] INFM, Unita Firenze, I-50125 Florence, Italy

[3] Max Planck Inst Komplexer Syst, D-01187 Dresden, Germany

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 85卷 / 17期

关键词：

D O I：

10.1103/PhysRevLett.85.3616

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We conjecture that in one-dimensional spatially extended systems the propagation velocity of correlations coincides with a zero of the convective Lyapunov spectrum. This conjecture: is successfully tested in three different contexts: (i) a Hamiltonian system (a Fermi-Pasta-Ulam chain of oscillators); (ii) a general model for spatiotemporal chaos (the complex Ginzburg-Landau equation); (iii) experimental data taken from a CO2- laser with delayed feedback. In the last case, the convective Lyapunov exponent is determined directly from the experimental data.

引用

页码：3616 / 3619

页数：4

共 21 条

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