Giacomelli, G., Hegger, R., Politi, A. and Vassalli, M. (2000) Convective Lyapunov exponents and propagation of correlations. Physical Review Letters, 85(17), 3616. (doi: 10.1103/PhysRevLett.85.3616)
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Abstract
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 CO 2 laser with delayed feedback. In the last case, the convective Lyapunov exponent is determined directly from the experimental data.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Vassalli, Professor Massimo |
| Authors: | Giacomelli, G., Hegger, R., Politi, A., and Vassalli, M. |
| College/School: | College of Science and Engineering > School of Engineering > Biomedical Engineering |
| Journal Name: | Physical Review Letters |
| Publisher: | American Physical Society |
| ISSN: | 0031-9007 |
| ISSN (Online): | 1079-7114 |
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