Abstract
We numerically study the time evolution of a system which consists of two attractors connected by a one-dimensional Fermi-Pasta-Ulam (FPU) chain It is found that there exists a self-consistent large-scale structure in the system even after a sufficiently long time. The wavelet transform is envoked to separate the modes of different scales. We discover that the existence of a nonlinear long-wavelength mode in the system assists the energy transport, which leads to the violation of the Fourier heat law in a one-dimensional FPU model as observed by other authors.
| Original language | English |
|---|---|
| Pages (from-to) | 7719-7728 |
| Number of pages | 10 |
| Journal | Journal of Physics A: Mathematical and General |
| Volume | 31 |
| Issue number | 38 |
| DOIs | |
| Publication status | Published - Sept 1998 |
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