Pulse propagation in a simple probabilistic transport model
نویسندگان
چکیده
The response to perturbations of a simplified transport model is studied. The model is used as a paradigmatic example of transport controlled by a critical gradient. Long-time system behaviour is diffusive when most of the system is sub-critical. However, when the critical mechanism becomes significant, it is observed to dominate the system behaviour at both shortand long-time scales. While the pulse amplitude decays in an approximately diffusive manner at long times for weakly critical situations, the pulse shape is not self-similar. PACS numbers: 52.25.Fi,52.25.Gj,52.35.Mw (Some figures in this article are in colour only in the electronic version)
منابع مشابه
Pulse propagation in a simple probabilistic transport model
The response to perturbations of a simplified transport model is studied. The model is used as a paradigmatic example of transport controlled by a critical gradient. Long-time system behaviour is diffusive when most of the system is sub-critical. However, when the critical mechanism becomes significant, it is observed to dominate the system behaviour at both short and long time scales. While th...
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